Best Instant Hot Water Dispensers

This piece presents you with a reliable list that includes the best instant hot water dispensers from two of the leading brands in the industry as well as from other reputable brands. These are the best when it comes to quality, performance, and design as you are going to see in our in-depth reviews.

We’ll also provide you with the ultimate buying guide plus other important information about hot water dispensers to help you make the right purchase decision. Let’s get started.

The Best Instant Hot Water Dispenser

We recommend the InSinkErator H-CONTOUR-SS Instant Hot Water Dispenser as the best instant hot water dispenser based on its performance, its price, and how other customers review it.

Whether it’s for preparing a hot cup of coffee, tea, soup, sauces, or just hot water for other kitchen tasks, an instant hot water dispenser is a useful and practical addition to any home.

It makes your work convenient and saves you the time you would have used to boil water on the stove. Most importantly, it simplifies and accelerates many kinds of kitchen chores.

Selecting a good instant hot water dispenser may, however, be somewhat confusing because there are tons of options available in the market from different brands.

Instant Hot Water Dispenser

An instant water dispenser is a system or device that’s designed to provide hot water on demand through a special auxiliary faucet installed near the sink. These appliances are able to heat water to temperatures of about 201oF or close to the boiling point.

Instant Hot Water Dispenser Working Process

An instant how water dispenser operates much like an electric water heater or electric kettle. The system is made up of a faucet and the main unit that contains an electric heating element and a small storage tank.

The main unit is connected to the cold water supply line under the sink and then to the hot water faucet it comes with which is installed onto the sink separate from your regular faucet.

The cold water from the supply line flows through the body of the faucet and then it’s diverted into the heater tank where it’s heated up to a near-boiling temperature by an electric coil (the heating element) and held in the tank waiting to be dispensed through the faucet for use.

Unlike conventional water heaters, the tank in hot water dispenser systems never becomes pressurized and this is because these dispensers use an open-vent faucet which basically means that there’s no valve on the faucet gooseneck.

For a conventional water heater system, the faucet valve is usually placed right after the heater tank which results in a pressurized tank. However, in a hot water dispenser system, the faucet valve sits right before the tank hence resulting in an “open-vent” style faucet.

With this design, the pressure never builds up inside the heater tank which is very important as too much pressure inside the tank would consequently result in failure.

So, how does a water dispenser gets to deliver the hot water to your faucet? Well, once the water is heated by the electric coil, it expands and fills the expansion chamber within the upper part of the storage tank.

When you open the faucet, more cold water flows into the bottom part of the tank, thereby displacing the hot water held in the tank and the expansion chamber. As a result of this displacement, the heated water is forced out of the tank and up through the faucet for use.

The hot water arrives immediately and is much hotter compared to the standard hot water taps. You don’t wait at all for it to warm up although the spout dispenses the water slowly compared to a typical faucet.

Most instant hot water dispensers come with an adjustable thermostat which controls the water temperature. This way, the system is able to maintain the water temperature according to how you set the thermostat. The thermostat also turns off the heating element once the water in the tank attains the set temperature.

Some more advanced units feature a control dial that allows you to adjust the thermostat to tweak the temperature and even turn the unit off. Adjustment is often required only when water is too cool or so hot such it boils away and causes the tank to overheat.

The Benefits

Having an instant hot dispenser installed in your kitchen has several benefits which include:

Hot Water on Demand

The primary benefit you stand to get from having an instant hot water dispenser is a ready supply of hot water whenever you need it whether it’s for basic household use such as drinking, preparing beverages, food, etc., or any other application.

If you have a very busy lifestyle and often don’t have the time to wait for the water to boil on the stove or coffee maker to heat up, then you really need to invest in an instant water dispenser.

You will enjoy the benefit and convenience of having hot water instantly straight from the tap saving you a lot of time. Water heaters can boil water too but the downside is that you will have to wait until the water boils in the kettle. However, with an instant water dispenser, you get the hot water right away allowing you to enjoy your hot beverage or prepare your food in no time. 

Constant Supply of Hot Water

Another reason why you may need an instant hot water dispenser is the fact that it can give you hot water constantly. With a kettle or any other conventional water heater system, you can only heat a limited amount of water.

An instant hot water dispenser, on the other hand, always comes with a storage tank and the capacity of this tank is quite a benefit as it can fill at least several gallons of water.

This means that whenever you draw hot water through the faucet, you’ll likely never have to wait until the tank is refilled again to heat more water.

The tank fills itself continuously since whenever you open the faucet to get hot water, cool water from the supply flows into the tank to displace the heated water and force it through the faucet. Therefore, it’s able to produce hot water constantly, and for the entire day.

Furthermore, with an instant hot water dispenser, you can easily heat a larger amount of water continuously without any issues unlike water heaters or a kettle which limits you to a certain amount. 

Energy-efficient

An instant water dispenser features a heating element that uses energy to heat the water. The good thing though is that, unlike other water heaters, instant hot water dispensers are usually built to be energy efficient.

As such, they tend to use much less energy than ordinary kettles or water heaters to deliver hot water. The heating element (electric coil) is thermostatically controlled hence it only maintains a certain temperature according to your thermostatic settings.

Moreover, it’s not constantly heating like a home water heater since the thermostat turns off the system once the water in the storage tank reaches the set temperature.

Basically, these dispensers use around 0.5 to 1 kWh of electricity in a day, therefore, the cost of running one based on our rough estimate would not be more than 10 cents a day.

However, the cost of power varies from one place to another, so equally the operating cost may vary depending on the area you live in.

Adjustable Water Temperature

The availability of a thermostat and a control dial (switch) in instant hot dispensers allows you as the user to control the temperature of your water.

This is a beneficial feature you won’t get with an ordinary water heater or kettle since it allows you to adjust the heat in order to keep the water at a temperature that you desire or prefer.

Versatile Applications

Unlike a kettle, instant hot water dispensers are versatile appliances that you can use for a number of things like preparing beverages in the morning, making food like pasta or macaroni, warming baby bottles, and cleaning kitchen counters or other surfaces with a cloth dipped in warm water.

In other words, an instant hot water dispenser provides a wonderful way of tackling multiple kitchen-centric tasks using just one appliance.

Compact and Hassle-Free Operation

The last benefit of these dispensers lay in their ease of use and feasibility. While they come in a wide range of designs and designs, they are really easy to use even for persons with disabilities.

First, the control dial or switch gives you easy control over the system allowing you to adjust the water temperature to your liking as well as turn the dispenser on/off with ease.

Second, these units have a sleek look that makes them presentable and they are quite compact hence can fit in any kitchen design no matter the size.

10 Best Instant Hot Water Dispensers Review

InSinkErator H-CONTOUR-SS Instant Hot Water Dispenser

InSinkErator is perhaps one of the largest and most popular manufacturers of instant hot water dispensers for residential and commercial use.

Key Features:
  • 750-watt heating element takes less than 30 seconds to heat
  • Adjustable thermostat with a decent temperature range (160oF – 210oF)
  • Can deliver up to 60 cups of heated water per hour

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Things we like

  • 750-watt heating element takes less than 30 seconds to heat
  • Adjustable thermostat with a decent temperature range (160oF – 210oF)
  • Can deliver up to 60 cups of heated water per hour
  • Moderate tank capacity of up to 2/3 gallons
  • Stylish chrome finish faucet with twist knob handle and self-closing valve
  • Dry start protection feature to protect the unit from damage
  • Low energy consumption at only 0.605 kWh per day
  • Compact streamlined profile that fits into most spaces
  • A fairly easy installation process with little maintenance required
  • Budget-friendly and comes with a 3-year limited warranty

Things we don't like

  • Tends to make some noise during operation
  • Faucet doesn’t offer much clearance

InSinkErator is perhaps one of the largest and most popular manufacturers of instant hot water dispensers for residential and commercial use.

The company offers some of the best hot water dispensers in the industry at very competitive prices, which is among the many reasons that have earned it great popularity. It’s also why we’ve covered several of their models in this comprehensive review article.

With that said, topping our list of best instant hot water dispensers is the InSinkErator H-CONTOUR-SS. This unit is part of InSinkErator’s Invite Series and it takes the lead because of its outstanding features and performance.

Performance

To start, the InSinkErator H-CONTOUR-SS comes as a complete instant hot dispenser system consisting of a hot water tank and faucet.

The first impressive thing about this unit is its ability to constantly deliver hot water immediately when you need it. The system is equipped with a 750-watts heating element which is capable of effectively heating cool water to near boiling point (200oF).

It will give you water that’s hotter than what your ordinary hot water tap can produce and it takes not more than 30 seconds to heat which is pretty fast considering that a kettle can take up to 3 minutes. It’s ideal for quick beverage and meal preparation.

The tank can hold up to about 2/3 gallons of water. It’s not the largest capacity, but it’s sufficient to yield a maximum of 60 cups of hot water per hour which includes the refills that happen when the tank is empty.

With such a high production rate, the H-CONTOUR-SS is a suitable option if you regularly use or require large amounts of hot water. It will give you an instant and continuous supply of hot water without getting overwhelmed.

Besides this, the system has a temperature control dial conveniently placed on the front part of the tank that allows you to adjust the water temperature from a range of 160oF to 210oF.

This flexibility gives you the chance to heat your water to a temperature you desire rather than having to settle on a pre-defined temperature that can’t be adjusted as is the case of kettles and regular home water heaters.

Dispensing Mechanism

The other convenience this unit provides is an ergonomic handle on the faucet it comes with which makes dispensing the hot water effortlessly. It’s actually a twist knob handle that you just turn to either side and hold it to make the hot water run.

The handle is incorporated with an instant self-closing valve, so once you release it, the water automatically stops running. It’s a safety feature that helps prevent accidental burns resulting from hot water being dispensed when the handle is not held.

The faucet itself is miniature with the spout height measuring 3.7 inches. It doesn’t offer much clearance from the spout to the sink but it’s solidly built to last for a long time and the handle is very comfortable to operate.

Now the best part about the InSinkErator dispensers is that they are designed to be energy efficient. The H-CONTOUR-SS model is no different as it uses a 750-Watt heating element which consumes less energy to heat the water.

It consumes around 0.605 kWh per day which is 40% less energy consumption compared to a regular light bulb, thereby you can expect low operational costs that won’t lead to a significant increase in your monthly energy bill.

One last important thing we liked in this dispenser is the inclusion of a dry-start protection feature. This vital addition prevents the unit from running when the water level goes below a certain level or when there’s no water flowing in the tank. It’s an important safety feature that helps protect the dispenser from damage resulting from overheating.

Installation

Installing the InSinkErator H-CONTOUR-SS is not that hard at all because it’s a tool-free connection system and everything you need to set it up is provided, plus an installation guide that’s easy to follow.

The only challenging part might be installing the faucet, especially for a novice, as you will have to drill the mounting hole onto your sink if you don’t have one already drilled. It needs about 1¼ to 1½ inch hole.

If you don’t have an electrical outlet under your sink, then you will also have to install one to connect the tank which plugs into a standard 120V outlet.

The tank has a compact, streamlined profile, measuring just 6 x 3.7 x 5.6 inches and weighing 7.4 pounds. It will fit nicely under the sink without taking too much space.

We particularly liked the simple yet elegant design of the tank too which is complemented by an equally stylish chrome finished designer faucet that can blend well with most kitchen décor styles.

In terms of durability, this is a solidly built dispenser featuring a metal construction that’s resistant to rusting, limescale build-ups, and all kinds of deformations. On top of that, it’s backed by a 3-year warranty, thereby, it will definitely last longer when you take good care of it.

One slight downside though is that the unit is a bit noisy during operation. It produces a noticeable rumbling noise around 3 to 4 times every hour for around 30 seconds each time. It’s the same noise made by a lot of other kitchen appliances, so it’s not really something that will be a bother to many people.

All that said, the InSinkErator H-CONTOUR-SS is indeed a stylish and reliable hot water dispenser that does its job efficiently and requires little to nothing in the way of maintenance. When you also factor in the affordable price tag, it’s the best bet if you are after getting value for your money.

InSinkErator H-VIEWSN-SS Instant Hot Water Dispenser

The H-View-SN hot water dispenser is another popular model from InSinkErator that offers great convenience and performance. It looks exactly like the InSinkErator H-CONTOUR-SS above and shares similar features with the only major difference being the faucet design and function.

Key Features:
  • 750-watt hot water tank that heats up within seconds
  • Can generate a maximum of 60 cups of near-boiling water in an hour
  • You can adjust the water temperature from 160oF to 210oF

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Things we like

  • 750-watt hot water tank that heats up within seconds
  • Can generate a maximum of 60 cups of near-boiling water in an hour
  • You can adjust the water temperature from 160oF to 210oF
  • Stylish satin nickel finish faucet with a lever-style dispensing mechanism
  • Dry start protection to keep the system safe when the water level is very low
  • An energy-efficient system using only around 0.6 kWh a day
  • Compact elegant design and fairly easy installation process
  • An alternative version with hot and cold water functions
  • Comes with a 3-year limited warranty

Things we don't like

  • It makes a bit of noise when generating hot water

The H-View-SN hot water dispenser is another popular model from InSinkErator that offers great convenience and performance. It looks exactly like the InSinkErator H-CONTOUR-SS above and shares similar features with the only major difference being the faucet design and function.

The model comes in two versions, the H-View-SN and the HC-View-SN. The latter is a dual function dispenser while the H-View-SN which we are going to look at below is a single version model.

Performance

The H-View-SN uses a 750-watts heating element which is capable of heating up within seconds and deliver consistent near-boiling point (200oF) water. The heating element is contained in a 2/3 gallon tank that can provide up to 60 cups of hot water per hour.

The heater constantly reheats the water so as to maintain it at the right temperature until the next use. It can keep the water hot throughout the day provided you don’t unplug it hence you always have near-boiling water whenever you need it. The water temperature can be adjusted from 160oF to 210oF, so you can easily select how hot you want your water to be.

When it comes to the HC-View-SN, which is the other version, you have two levels. Apart from being able to dispense hot water, this model dispenses cold water too. It’s a dual-lever unit with cold and hot water options.

The heating element and concept for the hot water is similar to that of the H-View-SN while the water delivered from the cold side is at room temperature, or rather tap water temperature.

Dispensing Mechanism

As we mentioned earlier, what sets apart the H-View-SN and HC-View-SN models from the InSinkErator H-CONTOUR-SS is the faucet.

While the H-CONTOUR-SS features a miniature, chrome-finished faucet with a twist knob handle, the H-View-SN comes with a lever-activated faucet.

You have to continuously hold the lever down in order to keep the water running, unlike the H-CONTOUR-SS faucet which requires twisting and holding the knob to dispense water.

The lever handle is equipped with an instant self-closing valve, so once you release it, the water immediately stops running to ensure safe use.

The spout is 6.75-inches above the counter, hence it offers much clearance compared to that of the H-CONTOUR-SS. You won’t have any difficulties sliding a big size pot or bowl under the spout to get your hot water.

For the HC-View-SN version, the faucet features two levers, one for dispensing hot water and another for the cool water.

The hot water lever is equally incorporated with an instant self-closing valve to automatically shut off the hot water when not in use while the cool water lever conveniently remains on.

The spout has the same height as that of the H-View-SN (6.75 inches) hence it offers adequate clearance from the sink.

Both versions are reasonably efficient too as there’s no wasted water and they heat up very fast – no wasted time waiting on hot water.

On average, the units can use about 0.6kWh of power to keep the water hot throughout the day, hence they are energy efficient too. InSinkErator has also included dry-start protection in both units which helps stop the heater from running when there’s no water flowing in the tank.

Installation

Like the InSinkErator H-CONTOUR-SS, setting up this H-View-SN dispenser won’t present a lot of challenges as it’s designed for easy DIY installation if you already have an extra faucet hole in your sink and power outlet under your sink.

The system requires a 115V power source or an unswitched AC power outlet. If your nearby outlet is 220V, then you will have to change it to 115V. The faucet needs a standard 1¼ to 1½-inch diameter hole and a maximum counter thickness of about 3-inches.

As for aesthetics, the faucet has a nice satin nickel finish that would look pretty stylish with most kitchen décor. You also have the option of a chrome finish faucet if you don’t prefer the satin nickel finish. The heating unit looks nice too and the entire construction is robust to ensure durability.

There is only one minor issue with this dispenser. It makes a little noise when generating hot water which is the same issue we saw with the H-CONTOUR-SS. Still, though, it’s not a distracting noise that could amount to a deal-breaker.

Overall, the InSinkErator H-View-SN is a brilliant instant hot water dispenser for daily use and a good choice if you prefer a lever-activated faucet rather than a twist knob faucet. For those who want a dual function unit that can deliver both hot and cool water, then the InSinkErator HC-View-SN version might be a suitable choice.

InSinkErator HOT150 Instant Hot Water Dispenser

The HOT150 falls within the Invite series and it’s another reliable instant hot water dispenser from InSinkErator. The features and performance of the unit are identical to those of the other InSinkErator models including the tank design.

Key Features:
  • Quick heating using a 750-watt heating element
  • 2/3 water tank capacity offering 60 cups per hour
  • Adjustable temperature ranging from 160oF to 210oF

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Things we like

  • Quick heating using a 750-watt heating element
  • 2/3 water tank capacity offering 60 cups per hour
  • Adjustable temperature ranging from 160oF to 210oF
  • 6.25 inches tall spout provides adequate sink clearance
  • Fitted with a self-closing valve to prevent accidental burns
  • Automatically shuts off to prevent tank burnout
  • Installation is simple for skilled DIYers
  • 1-year warranty with free house calls

Things we don't like

  • Makes some noise when running

The HOT150 falls within the Invite series and it’s another reliable instant hot water dispenser from InSinkErator. The features and performance of the unit are identical to those of the other InSinkErator models including the tank design.

Performance

The tank of the HOT150 house a 750-watt heating element and has a capacity of 2/3 gallons. It heats quickly like the rest of InSinkErator’s dispensers and can similarly deliver a maximum of 60 cups of hot water every hour.

The model features the same adjustable thermostat and control knob that allows you to modify the temperature from 160oF to 210oF.

You won’t incur much cost to run this unit too because it’s energy-efficient using less than 18kWh in a month. Plus

Dispensing Mechanism

The HOT150 comes with a unique faucet that’s different in both design and functionality from that of the other InSinkErator instant hot water dispensers.

It’s a simple faucet with a simple right-handed lever that you have to turn and hold constantly to dispense the hot water. The faucet features a self-closing valve which closes the lever instantly when you let go to shut off the water.

Beyond that, the unit has dry-start protection to help prevent the tank from overheating when there’s no water. Thereby like all InSinkErator models, you are assured of some level of safety when using this HOT150 dispenser.

Spout height from the sink or counter is 6.25 inches and its reach is 5.38 inches. This is a decent clearance in comparison to the H-CONTOUR-SS, sufficient enough to fit a big container under it.

The faucet is only available in a satin nickel finish which combined with the simple design, gives it a laid-back yet elegant look that would work with any kitchen décor.

Installation

If you are a skilled DIYer, setting up this HOT150 model is simple and this is partly due to the convenient InSinkErator’s tool-free tank connection and the straightforward installation manual that provides clear illustrations on how to set up the faucet as well as the tank.

To successfully install it, you will need several tools like a dedicated control valve with both compression fitting and T-fitting. You will need as well an unswitched 110V AC outlet to power up the tank once installed.

If you’ve never performed any DIY installations, you may have to get a professional plumber, especially for the faucet installation and power outlet set up under the sink.

The tank has the same compact design we see in all InSinkErator’s hot water dispensers; hence it doesn’t require a lot of space for the installation and it’s very durable courtesy of the sturdy stainless steel construction.

The unit does make some noise when running which is a minor drawback we noted although it’s not a loud noise that can cause a disturbance.

You get a 1-year limited warranty with this InSinkErator HOT150 which is short considering that the other two models come with a 3-year warranty.

However, the nice thing about this warranty is that it includes free house calls during the entire warranty period which means that should your dispenser need service, InSinkErator’s technical team will come to you. That sounds like a good deal.

To sum it all, if you are after something simple yet still can output a high volume of near-boiling water, this InSinkErator HOT150 instant hot water dispenser is for you. It stands out for its ease of use, efficiency, and long service life.

InSinkErator H-HOT100SN-SS Instant Hot Water Dispenser

Next up we have the InSinkErator H-HOT100SN-SS which is also part of the Invite series. This instant hot water dispenser is perhaps the most affordable model produced by InSinkErator.

Key Features:
  • 750-watt tank heats water fast
  • Delivers 60 cups of near-boiling water per hour
  • Variable temperature settings from 160oF to 210oF

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Things we like

  • 750-watt tank heats water fast
  • Delivers 60 cups of near-boiling water per hour
  • Variable temperature settings from 160oF to 210oF
  • Features an easy-push button activated faucet
  • Has dry-start protection to protect against burnout
  • Offers sufficient sink clearance for larger pots and pans
  • Quite durable and easy to install with basic DIY skills
  • Available in satin and chrome finish
  • Highly affordable instant hot water dispenser
  • A 1-year limited warranty that includes free house calls

Things we don't like

  • The button may start to stick after a while

Next up we have the InSinkErator H-HOT100SN-SS which is also part of the Invite series. This instant hot water dispenser is perhaps the most affordable model produced by InSinkErator.

While it’s cheaper than the rest, it still comes with the same great features and functionalities found on all InSinkErator hot water dispensers.

However, the outstanding thing that makes it more attractive besides the highly affordable price tag is the simplicity of its faucet design which provides one of the easiest dispensing mechanisms on the market.

Performance

Featuring a 750-watt heating element, the InSinkErator H-HOT100SN-SS is capable of reaching peak heating temperatures in a few seconds and deliver hot water up to temperatures of 210oF. The unit’s tank holds a maximum of 2/3 gallons of water and can produce 60 cups of heated water within an hour.

Temperature adjustment is also possible with this unit as it’s incorporated with an adjustable thermostat. At the front of the tank, there’s a control knob with a variety of heat settings ranging from 160oF to 210oF, so you get to easily regulate your water temperature when needed.

Same as the other models, energy consumption is on the low end. It uses not more than 1 kWh a day even if you leave it running continuously the entire day.

Dispensing Mechanism

The most impressive thing about this unit is its compact, push-button-activated faucet. It’s the easiest way of operating a faucet. You just press and hold the button and you get a good flow of hot water comfortably and with minimal effort.

The spout is 6.5-inches tall providing sufficient sink clearance for larger pots and pans. It also has a fairly long reach that places the spout almost at the center of the sink, so you don’t have to lean over further to get your hot water. It’s designed for easy and comfortable operation.

When you release your finger from the button, the water stops flowing immediately, so it works exactly like the self-closing valve in a lever-activated faucet which helps reduce the chances of you getting burned accidentally and as well prevent water wastage.

Once the water boils, the unit can maintain the selected temperature setting throughout the day provided there’s enough water in the tank. It’s equipped with dry-start protection, so should the water level get too low, it automatically shuts off to prevent burnout.

You can get the faucet either in a satin nickel finish or chrome finish, but both are breathtaking to behold and would enhance the appearance of any kitchen.

Installation

The H-HOT100SN-SS is accompanied by a very clear user manual that’s easy to comprehend and guides you all the way. The faucet needs a 1¼ to 1½ inch hole while the tank provides a convenient tool-free tank connection.

You will need T-fittings, a dedicated water control valve with a 3/8” compression fitting, and a 115 volts power outlet.

Our main concern though is that the push-button for dispensing the hot water is likely to start sticking later on as you use the dispenser more and more. This is worth keeping in mind because it may stick in the down position leaving the hot water flowing which could be hazardous.

The dispenser has a durable stainless-steel construction and the faucet is equally strong which assures long-term use. Like the InSinkErator HOT150 though, you get a one-year warranty that includes the free house calls.

If you are on a fixed budget, the H-HOT100SN-SS is one unit you can consider. It’s a quality hot water dispenser that’s simple and useful.

InSinkErator ISE-H-WAVESN-SS Instant Hot Water Dispenser

The H-Wave-SN is part of the Involve line of hot water dispensers from InSinkErator and it doesn’t disappoint either when it comes to convenience and performance.

Key Features:
  • Can hold up to 2/3 gallons of water
  • Heats instantly delivering 60 cups per hour
  • A wide temperature range of 160 to 210 degrees F

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Things we like

  • Can hold up to 2/3 gallons of water
  • Heats instantly delivering 60 cups per hour
  • A wide temperature range of 160 to 210 degrees F
  • Self-closing valve and dry start function
  • Very stylish faucet design with ample sink clearance
  • Consumes less energy and wastes no water
  • Not hard to install if you have DIY skills
  • Comes with a generous 3-year warranty

Things we don't like

  • May make some noise when operating

The H-Wave-SN is part of the Involve line of hot water dispensers from InSinkErator and it doesn’t disappoint either when it comes to convenience and performance.

It has all the excellent features and is similar to the H-View-SN, it comes in two versions, the H-Wave-SN which has a hot-only option, and the HC-Wave-SN which has both hot and cold water options.

Performance

With the H-Wave-SN, you have a 2/3-gallon tank and a 750-watt heating element together which are able to produce at most 60 cups of hot water every hour.

The HC-Wave-SN also has the same properties but it also comes with an additional lever which allows you to dispense cold water as well.

Both dispensers allow you to regulate the water temperature as you prefer. You can modify the temperature from 160oF to 210oF easily vial a control knob on the tank. They also consume less energy just like the previous InSinkErator’s dispensers.

Dispensing Mechanism

Now as far as aesthetics and functionality are concerned, these Involve Wave dispensers are head of the line. The faucets simply look elegant with a unique blend of both traditional and modern designs that can complement almost any kitchen style.

Whether you choose chrome or satin nickel finish, both options are sleek and classy. They have a mirror-like shine that looks very beautiful, especially when polished. The surface of the faucets is easy to clean and resilient to most kinds of damage and build-up.

Aside from aesthetics, they are designed to facilitate easy usability. For the H-Wave-SN, the faucet features a single lever for dispensing the hot water and you have to hold it continuously for the water to flow.

The HC-Wave-SN, however, uses a dual-function faucet that features two levers, one for dispensing hot which you equally have to hold for the water to continue flowing, and another for the cold water.

The hot water lever in both versions never remains in the open position. They are integrated with an instant self-closing valve to ensure the water is shut off once you let go of the handle.

The height of the faucets is 6.75 inches while the spout reach is 3.5 inches, so they somewhat offer sufficient clearance to get a big container underneath.

Installation

The H-Wave-SN is provided with a detailed guide that walks you through the whole installation process, plus the tool-free tank connections simplify things even further.

If you’ve successfully carried any DIY installation, you will enjoy setting up this unit just like the rest. Otherwise, you will have to seek assistance from a professional plumber. The tank is a stainless steel construction that seems strong and durable, the same as the faucet.

Again, there’s nothing of major concern in the way of setbacks with this model other than the little noise it makes when operating which is something that we’ve seen with almost all of InSinkErator’s hot water dispensers as well as other dispensers from many different brands.

The best part though is that it’s backed by a 3-year full-service limited warranty that includes the fee house calls during the 3-year period. In case of any defects, you just contact the InSinkErator company technicians and they will visit your home and fix it.

Looking at the performance alone, it’s clear that the H-Wave-SN is as good as all the other models above, but when it comes down to design, particularly of the faucet, none can match it.

It’s a handy instant hot water dispenser with an attractive, functional faucet that can elevate the aesthetics of any kitchen. If you are after style and performance, this is worth considering.

Furthermore, you have the option of choosing the HC-Wave-SN model if you want a dual-function dispenser. It’s virtually the same unit but you will have the cold water dispensing option as well.

InSinkErator HWT-F1000S Instant Hot Water Dispenser

The last model from InSinkErator on our list is the HWT-F1000S which is a dispenser purposely designed for those who want more than just hot water. Here we have a hot water dispenser and a filtering system combo that works together to produce filtered, hot water instantly.

Key Features:
  • Dispense 60 cups of boiling water per hour
  • Temperature is adjustable from 160˚F to 210˚F
  • Removes chlorine to produce purified and better-tasting water

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Things we like

  • Dispense 60 cups of boiling water per hour
  • Temperature is adjustable from 160˚F to 210˚F
  • Removes chlorine to produce purified and better-tasting water
  • Easy to install, use and maintain
  • NFS 42 Certified filtration system
  • Easy filter replacement
  • Six months of filter life
  • Durable design and energy-efficient
  • Compatible with other filters like the F-1000 and F-2000
  • A 3-year limited warranty with free house calls

Things we don't like

  • Faucet not included in the package
  • May not be compatible with faucets from other brands

The last model from InSinkErator on our list is the HWT-F1000S which is a dispenser purposely designed for those who want more than just hot water. Here we have a hot water dispenser and a filtering system combo that works together to produce filtered, hot water instantly.

Performance

With 2/3 gallons convenient water tank capacity, you can get up to 60 cups of steaming hot, filtered water every hour. The tank capacity is just perfect for letting the system quickly heat the water inside to provide a continuous flow of hot water for most household’s uses.

You can also adjust the temperature between 160˚F to 210˚F using the control knob to achieve your desired water temperature.

With a 750-watt heating element, the tank not only speeds up the preparation of hot beverages and meals but also consumes low energy, saves water, and subsequently saves you money. The HWT-F1000S also includes dry start protection hence it’s not going to overheat or get burned out.

Filtration System

As we stated earlier, this HWT-F1000S comes paired with an F-1000S water filtration system which is designed for use specifically with InSinkErator dispensing systems.

Therefore, besides providing instant hot water at your fingertips, the included F-1000S filtration system (NFS 42 Certified) eliminates any taste and odor associated with chlorine and also reduces any presence of particles to give you purified hot water with much better tasting.

The filter is attached to the cold water line prior to the heating tank, so the water gets filtered first before it’s heated. The filtration cartridge is replaceable and the filter bracket head is compatible with only the F-1000 and F-2000 replacement filters.

Installation and Maintenance

If you ever installed a water filtration system, then this won’t be difficult either. In fact, it’s a single-cartridge filter system plus the tank features a tool-free connection design for a trouble-free installation process.

The main reason why it will give you less headache to set up compared to the other models is that it does not include a faucet. It serves as a replacement tank or an upgrade dispenser for those who need the additional filtration system.

However, if you are getting it as your first dispenser, then you will have to purchase a faucet separately. The tank requires a grounded 115 volts electrical outlet under the sink.

Concerning maintenance, the filter will require replacement every 6 to 12 months depending on the condition of your influent water to ensure optimum performance.

Durability won’t be an issue as the tank is made entirely of stainless steel and the filter housing also is a durable plastic material.

The only unfortunate thing is the missing faucet. It’s an advantage if your aim is to buy a particular faucet that better matches your kitchen style and existing taps or sink. It’s worth noting though, the unit may not be compatible with other brand’s hot water faucets.

In short, unlike the rest of the InSinkErator dispensers above, the HWT-F1000S gives you a hot water dispensing system and a filtration system in one package. Its functionality and effectiveness are comparable to any top instant hot water dispenser.

Ready Hot 41-RH-200-F560-BN Instant Hot Water Dispenser

Ready Hot RH-200-SS is amongst the best value instant hot water dispensers in the market. It’s a convenient and highly functional unit that comes at an affordable price that makes it a perfect choice for those on a budget.

Key Features:
  • Heats up faster using a 1300-watt heating element
  • 2.5 quarts tank can deliver more than 60 cups of heated water per hour
  • Temperature is adjustable from 140oF to 200oF

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Things we like

  • Heats up faster using a 1300-watt heating element
  • 2.5 quarts tank can deliver more than 60 cups of heated water per hour
  • Temperature is adjustable from 140oF to 200oF
  • Dual supply system that delivers hot and cold water
  • Multiple safety features to prevent getting burned and tank burnout
  • Easy installation process and less expensive to maintain
  • Affordably priced and comes with a 3-year warranty

Things we don't like

  • The installation manual is not that clear
  • It can produce a little bit of noise

Ready Hot RH-200-SS is amongst the best value instant hot water dispensers in the market. It’s a convenient and highly functional unit that comes at an affordable price that makes it a perfect choice for those on a budget.

Ready Hot has developed two versions of this unit which include, the RH-200-F560-BN featuring a dual lever hot and cold faucet, and the RH-200-F570-BN which uses a single lever hot-water-only faucet.

Besides the faucets, there’s almost no difference between these two versions and as such, we will look at the RH-200-F560-BN model in this review which is worth considering if you are after a multipurpose water dispenser.

Performance

The Ready Hot RH-200-F560-BN makes use of a 1300-watt stainless steel heating element that can heat water up to 200oF which is near the boiling point and just the right temperature that’s conducive for preparing hot beverages like coffee and tea.

It takes around 4 seconds to heat up which is remarkably fast hence you don’t have to wait long before the hot water gets dispensed.

The holding tank of the unit has a decent capacity of 2.5 quarts (0.62 gallons) that provides a dispensing rate of approximately 60 cups of hot water per hour but the production rate can reach up to 100 cups per hour.

This is almost the same amount of hot water that most common dispensers can deliver in an hour and it’s sufficient for households that require more hot water during the day.

The RH-200-F560-BN also allows you to modify the temperature to your liking. It has a rotator thermostat with a dial knob at the front that lets you adjust the temperature from 140oF (60oC) to 200oF (93oC).

This is a relatively large temperature range compared to other models and it makes this Ready Hot unit versatile and practical to use in different situations.

Dispensing Mechanism

However, the outstanding feature that has many people drawn to this dispenser is its dual function. It comes with a dual-lever faucet where one lever is for dispensing hot water and the other for cold water.

The hot water lever has a red button on it which you have to push down and hold to unlock the lever for it to dispense the hot water and keep it flowing.

This is an essential feature for safety purposes, especially if you have curious children. It helps minimize burning hazards that may result from the initial delay of the heated water, which is likely to spew out in full force.

The cold water level doesn’t require you to hold it to dispense water. You just push it in and it stays on to give you water at normal temperature. Plus, the spout can swivel hence you get to dispense water in any direction which is convenient in the event your sink is filled with utensils.

The flow rate isn’t extremely fast, but that’s good because you are handling hot water. For the cold water, you will get normal water pressure, although it’s a little slower compared to a standard faucet.

Above and beyond anything else, this Ready Hot RH-200-F560-BN dispenser is incorporated with automated tank protection that comprises of a self-resetting thermal fuse. This is another notable safety feature that will help prevent tank burnout should you ever have an accidental dry startup.

Installation

It’s relatively easy to install the Ready Hot RH-200-F560. You can manage it yourself although the manual isn’t that helpful. It comes equipped with an LED indicator light at the front which displays two lights, a red light or green light.

The red light indicates when the tank is heating to the maximum adjustment, whereas the green light confirms that the tank is fully heated. The unit plugs into a standard 110V under the sink outlet.

With this model, you also get to choose between chrome and brushed nickel faucet, both of which would look nice with most kitchen décor.

The best thing is that the unit doesn’t require rigorous maintenance. It’s easy and a little inexpensive to maintain than many other common dispensers.

It uses less than 0.9 kWh in a day which is much less than what your ordinary 40-watt lightbulb consumes per day. Furthermore, there won’t be any wastage of water or energy since it will be running only when you need it.

The tank is heavy-duty made from a strong stainless steel material with a brushed nickel finish for added durability. It’s solid build quality.

Aside from the user manual not being clear and the little noise the unit makes when producing hot water, this is a solid, durable, functional, and convenient hot and cold water dispenser that’s reasonably priced.

If you want good value for your money or have children at home, the Ready Hot RH-200-F560 is certainly your ideal hot water dispenser.

Ready Hot RH-100-F560-BN Instant Hot Water Dispenser

The RH-100-F60-BN is a much affordable version of the Ready Hot RH-200-F560-BN we’ve reviewed above. They share similar features except for the heating power which is what brings the difference in the price.

Key Features:
  • A 780-watt tank that heats quickly
  • Can provide 40+ cups of hot water every hour
  • You can adjust the temperature from 140oF to 190oF

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Things we like

  • A 780-watt tank that heats quickly
  • Can provide 40+ cups of hot water every hour
  • You can adjust the temperature from 140oF to 190oF
  • Equipped with an automated heater protection
  • Dual-lever faucet for dispensing hot and cold water
  • Two stylish faucet finishes
  • Relatively easy to install and require little maintenance
  • Comes with 1-year limited warranty

Things we don't like

  • Several complaints of water tasting like plastic

The RH-100-F60-BN is a much affordable version of the Ready Hot RH-200-F560-BN we’ve reviewed above. They share similar features except for the heating power which is what brings the difference in the price.

The unit comes in two versions just like the RH-200-F560-BN. You have the RH-100-F60-BN which features a dual lever faucet to dispense both hot and cold, and the RH-100-F570-BN which is a hot water-only dispenser.

Performance

While the RH-200-F560-BN utilizes a 1300-watt heating element, the RH-100-F60-BN has a 780-watt heating element. This is a slight downgrade but it’s still more than sufficient heating power to deliver near-boiling water in a matter of seconds.

The tank has 2.5 quarts capacity and a hot water output rate of about 40 cups or more per hour which should be able to meet the needs of small to medium families.

The unit can reach maximum temperatures of 190oF and it has a thermostat dial that lets you adjust the temperature from 140oF to 190oF. Automated heater protection is incorporated into the tank, so in case of a dry start, it will prevent any possible tank burnout.

Dispensing Mechanism

We’ve stated before that this Ready Hot RH-100-F60-BN model like its counterpart the RH-200-F560-BN, is a dual-function dispenser capable of providing both hot and cold water.

The faucet features a dual lever, one for dispensing the hot water and another for dispensing cold water which is always at normal or rather room temperature.

For the hot water lever, you have to push it down for the water to flow. When you leave the lever, the water stops flowing instantly which is an essential safety feature as we’ve mentioned several times.

The spout is tall, measuring about 8-inches high, hence you will have decent sink clearance to fit small to larger items underneath it.

Depending on your preference, you get to choose between two faucet finishes when purchasing this RH-100-F60-BN dispenser. You have a cool brushed nickel finish and a glossy chrome faucet finish. Both are stylish faucets and would look superb in modern kitchen design.

Installation

Setting up this unit is relatively easy if you ever installed a water filtration system or kitchen faucet and the manual instructions are straightforward as well.

One major issue is that some users have complained about the water having a plastic taste but overall, the unit works reliably and it’s budget-friendly in comparison to the RH-200-F560-BN. It’s also a good alternative for anyone looking for a dual-function instant hot water dispenser.

Waste King AH-1300-C Instant Hot Water Dispenser

Waste King has been manufacturing kitchen appliances for over 50 years and their products have a reputation for being of top quality and highly reliable.

Key Features:
  • A 1300-watt heating element provides a fast heating capability
  • Can produce over 60 cups of hot water in an hour
  • You can raise or lower the temperature to your liking

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Things we like

  • A 1300-watt heating element provides a fast heating capability
  • Can produce over 60 cups of hot water in an hour
  • You can raise or lower the temperature to your liking
  • Features a self-resetting thermal fuse to prevent overheating
  • Energy-efficient operation using less than 0.9 kWh per day
  • Installation is easy and the unit comes with a 1-year warranty

Things we don't like

  • The faucet has to be purchased separately
  • Does not temperatures above 190oF

Waste King has been manufacturing kitchen appliances for over 50 years and their products have a reputation for being of top quality and highly reliable.

Taking the seventh position on our list is the company’s Anaheim AH-1300 Hot Water Tank. Unlike the other units we’ve covered herein, this one is not a complete dispenser.

It’s a heating tank only designed to provide an instant and continuous supply of hot water. It doesn’t come with a faucet, but you can buy it separately.

Performance

This Waste King tank contains a 1300-watt heating element that can provide temperatures of up to 190oF.

What’s interesting though is that it offers a faster cycling time (heat recovery) which is basically the time until the hot water becomes ready again after the tank has been emptied. It heats up almost immediately, so you get the hot water in a matter of seconds.

The tank itself has the capacity to hold up to 5/8 gallons of water which is about 2.5 liters and it can deliver over 60 cups of hot water every hour.

This fairly large capacity coupled up with the fast heating time and production rate means this Anaheim AH-1300 Hot Water Tank can do well in homes that need continuous hot water fast.

The tank features a simple switch on the front part for temperature control. It allows you to adjust the temperature from low to high (or 140oF to 190oF), hence you get the water at the temperature you desire which is convenient.

The switch also serves as the control for turning off the tank when it’s not in use. Waste King has as well added a self-resetting thermal fuse to the tank to prevent it from overheating and it helps keep the water at the desired temperature too.

Concerning energy efficiency, the unit uses not more than 0.9 kWh per day. In other words, it will cost you less than $3 every month if you run it daily, hence as far as efficiency is concerned, it passes the test.

As we stated before, this is a tank-only system. It does not include a faucet, so you can buy it separately should you need it, but it can easily function with an existing faucet.

However, if you don’t prefer getting a separate faucet, Waste King has other models that come with both the tank and the faucet. We’ve included one of these models below which you can check out if you are thinking of investing in a Waste King hot water dispenser.

Installation

Being a tank-only unit it’s very easy to install Anaheim AH-1300, especially if you have an existing faucet already mounted on your sink. It will work with a regular 110V power outlet.

The tank is made of insulated stainless steel material that’s resistant to rust and corrosion, thereby it’s durable in every aspect and it retains heat well to keep the water warm for long when turned off.

The only downside is that it doesn’t come with a faucet. The other unfortunate thing is that it’s able to reach 200oF or above. Despite that, its quality and performance are no doubt outstanding plus we liked the fact that it’s reasonably affordable.

Therefore, if you don’t mind the lack of a faucet or have no problem getting a separate faucet, then this Anaheim AH-1300 model is a good deal. It’s a superb option too if you are looking to upgrade your existing hot water system or just want a backup tank.

Westbrass D271H-12 Instant Hot Water Dispenser

The D271H-12 Hot Water Dispenser is Westbrass’s most impressive model so far. It’s one of the best single-handle dispensers out there offering reliable performance and convenient functionality.

Key Features:
  • Fast and efficient heating tank
  • Can produce more than 60 cups of heated water every hour
  • Moderate temperature ranges from 145oF to 190oF

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Things we like

  • Fast and efficient heating tank
  • Can produce more than 60 cups of heated water every hour
  • Moderate temperature ranges from 145oF to 190oF
  • Solid brass faucet with spring-piston handle
  • Automatically turns off the hot water for safety
  • High-arc spout provides ample sink clearance
  • Easy to install and mounting tools are included
  • Up to four attractive faucet colors to choose from
  • Comes with a 1-year warranty

Things we don't like

  • Doesn’t reach beyond 190oF
  • A bit noisy when powered

The D271H-12 Hot Water Dispenser is Westbrass’s most impressive model so far. It’s one of the best single-handle dispensers out there offering reliable performance and convenient functionality.

Performance

While it’s relatively simple in terms of design, this Westbrass D271H-12 dispenser is highly effective with respect to delivering instant hot water.

The unit uses a 1300-watt heating element and it’s incorporated with QHT-1 technology which is dubbed as quick heating water. What this means is that it heats the water rapidly no matter the temperature setting you select.

Coupled with a large 2/3 gallons tank that can generate more than 60 cups of hot water every hour, this unit will be able to give you instant access to near-boiling water at any time.

Moreover, the tank utilizes copper tubing connections. These are very efficient tubing, especially for delivering the hot water to the faucet, so it’s completely capable of handling even heavy-duty use.

You can also adjust the temperature to the level you prefer as the unit comes with a temperature control switch that provides a wide temperature range from 145oF to 190oF. The switch as well allows you to manually turn off the unit if needed.

Dispensing Mechanism

The Westbrass D271H-12 offers quick and easy water control using a single-handle faucet. The faucet has a spring-piston handle which you push down to dispense water.

If you happen to leave it on without knowing, the tap won’t continue running. The handle automatically turns itself off stopping the dispensing of the hot water. This not only prevents accidental burns but also saves power and helps prevent wastage of water.

The faucet also features a high-arc spout that’s about 9¼ inches tall, hence it provides plenty of clearance from the countertop or sink. It won’t get in your way.

Now the best part about this Westbrass model is that you have four awesome faucet finish color options to choose from, so you can precisely complement your existing kitchen décor.

You can choose between polished chrome, antique copper, matte black, or oil-rubbed bronze. This particular model comes with an oil-rubbed bronze finish faucet. Oil rubbed bronze is almost black but it has copper undertones that give it a classy, vintage look.

If you love rustic and antique designs, this will suit you well. Furthermore, the spout is nicely thin and has an elegant gooseneck projection, so it will certainly make your kitchen look more appealing.

Installation

The D271H-12 stands out too for its ease of installation. If you are a DIY person, you will find it easy to set up this unit. It’s a simple and straightforward process, and a detailed guide is provided to take you through the whole process.

The package also contains everything you will need to install it including the mounting materials and all the required tubes for a quick, convenient installation. According to the manufacturer’s recommendation, you will need a silicone seal for the installation, not a plumber’s putty.

More so, the system is designed in such a way that you can fit a filter between the water supply and the heating tank, so before the water gets inside the tank to be heated, it gets filtered and cleaned first.

The tank is strong stainless steel while the faucet is made of solid brass, so they are very sturdy and durable. Stainless steel and brass are as well resistant to moisture and heat, thereby, they will last longer without rust or corroding.

If there’s a setback to point out, it would be the fact that the heating element can’t quite reach up to 200oF or beyond. It’s a shame since most hot water dispensers reach up to 210oF. Even so, its temperature range is still sufficient enough for most situations.

Having been so well made, easy to use, and highly functional, you are not likely to encounter any issues with this Westbrass D271H-12 hot water dispenser. It’s worth a close look if you are searching for a simple and effective single-handle hot water dispenser.

Choosing The Best Instant Hot Water Dispenser

Instant hot water dispensers have different designs and you would want to make sure that the unit you are purchasing is not a waste of money that will end up annoying you someday to come.   

There are several factors you will need to carefully evaluate to ensure you get the best instant hot water dispenser that will meet your exact requirements. We’ve highlighted some of these factors below. They will give you more detail and help you narrow it down to the best unit.

Watts

Instant hot water dispensers don’t vary widely when it comes to the heating element’s wattage. They are mostly either 500, 750, or 1300 watts units. To put it simply, the dispenser’s watts rating helps to give a good indication of its heating speed.

Therefore, a unit with high electrical power or watts will heat a large amount of water faster than one with low electric power. For example, a 1,300-watt dispenser will heat water considerably faster than a 750-watt model.

More power means faster performance, so if you often use a lot of hot water daily, then you might want to consider a dispenser with high wattage.

Note that more power may seem to translate to higher running costs, but in practice, most of the instant hot water dispensers are pretty energy-efficient and cost less to run in comparison to a 100-watt light bulb.

Temperature Range

The sole purpose of instant hot water dispensers is to avail hot water instantly, so the temperature range is one very important factor to take into consideration when selecting an instant water dispenser.

Some dispensers don’t feature temperature control settings, hence they operate on a preset temperature level for hot water that remains constant throughout.

However, most dispensers, including all the models on our list, offer temperature control settings that allow you to heat the water to your preferred temperature. The temperature range will vary though from dispenser to dispenser.

If you can find a unit that offers a wide temperature range, then the better. The broader the temperature range, the more flexibility you will have. You will be able to perform a variety of tasks around the home that require different water temperature levels.

For instance, you can lower the temperature down to a cooler level for certain tasks such as warming the baby’s bottle or food, and then raise it to a higher level when you need water for sterilization and washing dishes or scrubbing some tough grease stains off a pan.

Temperature settings are essential to consider especially if you like to prepare herbal tea, which tends to vary in taste at different temperatures.

We would recommend going for a dispenser that offers a decent temperature range, from around 140oF to 210oF, which is near the boiling point of 212oF.

Examples of some of the dispensers on our list with a relatively wide temperature ranges are the Ready Hot RH-200-SS (140oF to 200oF), InSinkErator H-CONTOUR-SS (160oF to 200oF), and Anaheim AH-1300 (140oF to 190oF).

Like we said earlier, go for a wider temperature range because you will have a more versatile dispenser that will allow you to easily heat water at desired temperatures.

It’s also a feature that’s very helpful in saving on electricity bills as it reduces and helps manage the level of power consumption.

It’s good that you also consider a model that can reach very high temperatures. A unit that’s able to heat up to 200oF or beyond. Not all dispensers can hit such high temperatures, but if you purchase one, you are guaranteed to have super-hot water which is more helpful in so many situations.

Speed or Water Flow per Hour (Cups Produced per Hour)

The speed of water flow per hour refers to the total amount of cups of hot water a dispenser can fill within an hour. Some models can deliver up to 100 cups of heated water an hour while others can produce a maximum of 60 cups per hour. 

Generally, when it comes to the rate of production of hot water or rather the speed, preference takes precedence. If your demand for hot water during the day is usually high, then you might want to go with one that can deliver up to 100 cups per hour.

You have to also factor in the heat recovery time or time in which the heated water is ready again once the tank has been emptied.

A unit with a faster cycling time and production rate would be much convenient since you will have sufficient hot water delivered within a short amount of time which is an advantage, especially when you have plenty of guests around.

Tank capacity

Tank capacity is another major factor that needs close consideration in order to select the best instant hot water dispenser. By tank capacity, we refer to the total amount of water that the tank can hold at one time. 

This basically helps give you a rough idea of how much hot water you will be able to dispense throughout the day. It will also help tell you how much energy or power the unit is likely to use.

Most tanks of instant hot water dispensers can hold between ½ a gallon and 2 gallons of water a time which translates to around 60 to 100 cups of hot water per hour.

Here, your choice will come down to your demand for hot water as well as your level of usage. You will have to first consider the number of people that are in your household as well as how often you use or need hot water.

If you have a large family or tend to constantly use a lot of hot water every day, you will need to invest in a dispenser with a high capacity and rate of production in terms of cups per hour.

The Westbrass D271H-12 and Ready Hot RH-200-SS are good examples as they offer about 0.6 gallons of tank capacity and are quite capable of delivering up to 100 cups of hot water in an hour. In short, the higher the tank capacity and watts, the more hot water you will get from the dispenser.

On the other hand, if you have a smaller family or just need hot water for the occasional cup of coffee or tea, a dispenser with normal capacity will do fine.

Look for a unit with a capacity of ½ or 5/8 gallons and can deliver up to 60 cups of heated water per hour. Some good examples on our list are the InSinkErator H-CONTOUR-SS, InSinkErator H-View-SN, and Anaheim AH-1300.

Keep in mind that, a larger tank capacity will require more energy to heat it which means more power consumption compared to a lower capacity unit.

Size

The size of the unit or rather the tank size matters a lot when choosing an instant hot water dispenser. The main reason for this is because these dispensers are designed to be connected to your existing water supply, so they are usually installed under the sink and close to a power outlet.

Therefore, it’s crucial to look at the dimensions of the tank or dispenser to ensure you have enough space under your sink to accommodate it.

Fortunately, all the models we’ve reviewed above are small and compact. They don’t require much space, hence they can easily fit in small to average under sink cabinets.

If you prefer a more portable unit, then a countertop dispenser like the Sunbeam Hot Shot hot water dispenser would be ideal for you.

Style & Decoration

Modern instant hot water dispensers are available in various styles and colors. Therefore, it’s good to also consider getting an adequately finished unit that matches your style or your kitchen décor.

The main part you will need to look at when you are considering the style of the dispenser is the faucet design and finish. Most instant hot water dispensers come with chrome-finished faucets which is the traditional look of most standard kitchen faucets.

However, if you don’t want these common, contemporary-looking faucets, there are plenty of other different faucets that feature interesting finishes that can complement your kitchen décor or spice it up.

Some of the much pleasant faucet finish you can consider include, brushed nickel, bronze, antique copper, matte black, and oil-rubbed bronze. These colorful faucets may vary in shade from one brand to another but can certainly leave your kitchen looking more attractive.

Ensure you at least pick a unit that matches your kitchen’s style so that it doesn’t look out of place. You don’t have to go for a boring dispenser just because you want hot water on demand. You can find a nice unit that will match your taste.

Westbrass D271H-12 is one model that gives you four attractive faucet finishes to choose from which include polished chrome, antique copper, matte black, and oil-rubbed bronze.

You also look at the shape and size of the faucet to ensure that you select an option that will fit well above your sink without inferring your kitchen design or other parts. 

The spout should offer sufficient clearance from the sink so that it doesn’t get in your way when you have a large mug or other containers to fill with hot water.

Installation

The installation process of instant hot water dispensers may vary from brand to brand, but overall, many models are designed to facilitate easy DIY installation.

In most cases, you will need a few basic tools for the setup. There are units though that require no tools at all, particularly countertop dispensers like the Sunbeam Hot Shot and tank-only systems like the Anaheim AH-1300 Hot Water Tank.

Generally, with an instant hot water dispenser, you will have two main parts that will require installation – the heating tank and the faucet. The tank is usually installed under the sink and it has to be mounted in a vertical position about the same level as the plumbing line.

Several manufacturers include the mounting bracket or materials in the package as well as a couple of other tools required for the tank installation such as a T-fitting and a control valve.

The challenging part of the installation process would probably be setting up the faucet. The only major issue here is drilling a mounting hole into the sink top which will require some basic DIY skills. For this step, the tools you will need to have are safety glasses, a drill, and drill bits.

However, if you have an existing hole already drilled in your sink, then you may skip this step when setting up your dispenser.

Besides this, you will need to ensure the place you plan to mount the tank is near an electrical line or power outlet. For safety purposes, if you have to set up the electrical lines to supply power to the tank, it’s highly advisable to leave the installation to a professional plumber.

To avoid any setbacks, it’s good to check with your dealer or manufacturer first about the warranty terms regarding installation because sometimes DIY installation can void the warranty on the dispenser.

A majority of the models reviewed on our list above come with most of the tools you need for installation and are designed to allow for a relatively easy DIY installation.

Make sure though that you pick a unit that comes with a clear and illustrative instruction manual that will guide you step-by-step through the installation process.

Other Features to Consider

Many hot water dispensers offer additional features that help enhance their performance, efficiency and convenience in terms of operating them. Some of the features you should look out for are.

Filter

A considerable number of instant hot water dispensers are either supplied with a built-in filter or come with a separate filter. This means that in addition to heating your water, these systems will be able to filter out many common impurities present in the water.

If you are going for a dispenser with a filter, ensure you pick one with the right filter based on the condition of your water or the contaminant you want to remove.

If it’s unpleasant tastes, odors, chlorine, or other common chemicals you want to remove, then look for a unit with an activated carbon filter. If it’s sediments you want to get rid of, then a sediment filter is what you should go for. If it’s reducing limescale build-up, then a unit with a limescale filter will suit you best.

Self-resetting Thermal Fuse

Hot water dispensers come equipped with various safety features to prevent the tank or heating element from damage resulting from burnouts or overheating.

Self-resetting thermal fuse, otherwise known as boil-dry protection, is one of the essential safety features that can protect your unit from damage.  

This feature basically stops the dispenser from working by turning it off when the water in the tank is not enough or when there’s no water at all in the tank.

This is way, it prevents the heating element from overheating and burning out. If the unit attempts to heat when there’s no water inside the tank, it could easily turn into a serious safety hazard that may lead to home damage or personal injury.

Therefore, whatever unit you choose, make sure it has a self-resetting thermal fuse or other safety features that can prevent tank burnout and possible accidents and fires.

Self-Closing Valve

Considering that hot water dispensers heat water to a near boiling point, there’s a slight chance of accidental burns and scalds happening when dispensing the hot water from the tap.

Choosing a unit with a faucet that has a self-closing valve or safety lock built on it is a great way to prevent such accidental burns from occurring.

A self-closing valve automatically turns off the flow of hot water when you withdraw your hand from the handle or when the faucet is not in use. This not only prevents getting burned accidentally but also helps prevent water wastage.

Moreover, getting a unit that has a safety lock is particularly important if you have children or elderly people at home. They may accidentally turn the wrong faucet on while you are away to wash hands and end up getting burned by the nearly boiling water. Even pets could accidentally turn on the faucet and cause accidental burns.

For these reasons and to ensure the safety of your children and family, we would highly recommend you buy a dispenser model that’s equipped with a self-closing valve, a safety lock, or any other safety system for children.

Temperature Control

While we’ve talked about the importance of having a hot water dispenser with a wide temperature range, it’s worth noting that most units only come with a max to min setting, so the exact temperature at every level tends to vary with each model.

Although this is not a must-have feature, you would be much better off with a unit that has a temperature control knob or dial where the temperature at each level is marked or indicated. This way, you will be able to adjust the temperature with some level of precision and heat the water to your desired temperature.

Accessories

Finally, one last thing you should consider when evaluating different instant hot water dispenser systems is the presence of any add-ons.

In essence, many of these systems don’t offer much with regards to accessories, so you shouldn’t worry if your chosen dispenser doesn’t have much to provide in terms of accessories.

Nonetheless, look out for things like mounting tools, tubing, connectors, and other extra accessories or tools that the models you’ve shortlisted provide besides the dispenser itself.

If you pick a unit that comes with all the necessary tools, then you will have an easier time when it comes to installation plus you won’t incur any cost in purchasing additional tools needed to set up your dispenser.

Conclusion

Buying an instant hot water dispenser will save you a lot of precious time and money. You will never have to go through the painstaking minutes or hours of heating water again.

With that said, you must know exactly what you are looking for because choosing the ideal hot water dispenser model will depend on your specific needs which include your consumption capacity and urgency, among other considerations.

You should always pick a model that’s reliable, efficient, safe, and easy to use, and will work perfectly for a long time. In other words, a unit that will meet your hot water demands without much fuss or resulting in high running costs.

If it’s your first time looking for the right instant hot water dispenser, then our reviews and buying guide above will make things much easier for you.

Therefore, take your time to read them to get an idea of the key factors that make up the best hot water dispenser and compare the different models in our listing to see which one suits your needs and budget.

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