6 Best Instant Hot Water Dispensers Reviews of 2020 – (Ultimate Buyer’s Guide)

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Written by Eric

Last Updated: 12/08/2020

An instant hot water dispenser is the easiest way to keep near boiling water on hand in a busy kitchen. If you're looking to invest but aren't sure about the best model or the features you'll need, we've compiled this handy buying guide of reviews and information just for you.

Our buying guides only include top-rated products that have been tested and certified as safe and long lasting by third parties. The instant hot water dispensers reviewed in this guide are all made by some of the most respected manufacturers of instant hot water dispensers on the market, and all offer excellent performance with some unique features.

Best Instant Hot Water Dispensers

1. Top Pick - InSinkErator Contour

InSinkErator Contour

InSinkErator Contour Instant Hot Water System

  • Chrome Finish
  • Easy to Install
  • 60 Cups/Hr of Near-Boiling Water

Why we like it: Lovely chrome finish of the faucet, quality material tank, it's easy to install , easy to use, and very fairly priced. 

InSinkErator is one of the top brands in kitchen accessories, and offers great quality with good customer service. The InSinkErator Contour comes top of our list for all InSinkErator hot water dispenser features.

This hot water dispenser integrates with your current sink, with the electricity being under the sink and the dispenser with twist top handle above the sink. You will need one hole in the sink to fit in this system. The hot water it provides is near boiling and the stainless steel tank holds ⅔ gallons of water at a time.

The hot water dispenser is made out of stainless steel for durability. It sits right on the edge of the kitchen sink so it doesn’t take up any space in the kitchen, unlike an electric kettle. The main part of the system is installed underneath the sink where you can’t see it. The temperature is controlled via a twist dial which is very easy to use and the flow of hot water is controlled with a convenient twist top handle. The handle is easy enough that almost anyone can use it.

This instant hot water heater comes with a three year parts warranty that guarantees excellent performance with no defects or shipping damages. The faucet finish is shiny chrome: a modern looking finish that brightens up the kitchen. 

2. Runner Up - InSinkErator HOT150

InSinkErator Hot150

InSinkErator HOT150 Hot Water Dispenser

  • Satin Nickel Finish
  • Easy Installation
  • 60 Cups/Hr of Near-Boiling Water
  • Easy to Adjust Temperature

Why we like it: Modern faucet design, effective, easy to install and easy to use.

This hot water dispenser from InSinkErator comes in a satin nickel finish which is warmer and more copper toned metallic than stainless steel. Nickel is a classic and timeless look and the satin texture makes it easy to clean and hides fingerprints.

The parts and the finish for this instant hot water heater are covered by a one year guarantee from the manufacturer. The one year warranty guarantees that there are no parts defects and that the product will work as promised.

It has a high-capacity stainless steel hot water tank which holds ⅔ a gallon of water at one time and will produce up to 60 cups of hot water in an hour. The temperature can be adjusted to near boiling with an easy to use temperature dial. To turn off the flow of water there is a lever on the side of the faucet. The tap for the hot water sits flush on the side of your sink, so it makes the most of the space unlike a kettle.

3. Ready Hot RH-200-F570-CH

Ready Hot

Ready Hot RH-200-F570-CH Hot Water Dispenser

  • Chrome Faucet
  • 60 Cups/Hr of near-boiling water
  • Adjustable Temperature from 140-200
  • Quality Material

Why we like it: It's easy to install, easy-to-use and you can adjust the temperature of the water, the design of the faucet is modern looking with beautiful chrome finish.

This powerful hot water dispenser from Ready Hot can be used to provide water up to 200 degrees through an elegant chrome faucet. The hot water boiler is installed underneath the sink and the faucet mounts through a single hole in the counter. It can be ordered in a chrome or brushed nickel finish.

The lever to turn the hot water on and off is easy to use and makes the most out of the counter space. This hot water dispenser has a steel tank and water element with a built-in safety mechanism to prevent the product from overheating. This is perfect for making tea, coffee, soup, and other hot drinks and foods. There's an indicator light on the tank that will show you whether the water is hot or not via a red or green light.

The temperature is controlled via a dial that is on the side of the dispenser and varies between 140 and 200 degrees Fahrenheit so you can pinpoint the perfect temperature for your tea or coffee. The faucet is available as either a one handle faucet or also as a two handle faucet for both hot water and cold water connections.

4. InSinkErator H-Wave-C

InSinkErator H-Wave-C

InSinkErator H-Wave-C Involve Series Wave Hot Water Dispenser

  • Chrome Finish
  • 60 Cups/Hr of near-boiling water
  • Adjustable Temperature from 160-210
  • Easy Installation

Why we like it: You can adjust the water temperature, the tank and dispenser are made of durable material, and you can choose between a dispenser with only hot water or with both cold and hot. 

The InSinkErator H-Wave C is a high capacity instant water heater that can provide almost boiling water with the press of a lever. The faucet comes as either a hot water only system or as a hot and cold water connection.

It has a steel hot water tank that sits under the sink. The temperature goes from 160 to 210 degrees and is easily adjusted via a dial on the dispenser tank.

The lever automatically shuts off to prevent safety accidents. This instant hot water heater comes with a three year warranty so you can rest assured when purchasing that the hot water tank and faucet will be delivered as promised. The finish on the faucet is chrome, which looks beautiful, is easy to clean, and is resilient to most kinds of surface damage and build up.

5. InSinkErator View 

InSinkErator View

InSinkErator View Hot Water Dispenser System

  • High Quality Materials
  • 60 Cups/Hr of near-boiling water
  • Modern Chrome Finish
  • Adjustable Water Temperature

Why we like it: This one is made of quality material, made to last, has 3 years warranty, and has a real nice and sleek look. 

This is a lightweight and elegant hot water dispenser that is made for high capacity use, generating up to sixty cups of almost boiling water per hour. InSinkErator offer a three year warranty on this faucet and hot water tank system that protects your purchase from parts defects and damages.

The steel hot water tank sits below the counter so you don’t see it and it doesn’t take up counter space. The faucet has a stylish, tall design and brushed chrome finish. The chrome finish is very modern looking and will compliment other chrome kitchen accessories well. In addition, chrome is very clean, hygienic, and long-lasting. You can easily adjust the temperature of the water up to 210 degrees using the dial on the dispenser tank.

6. Westbrass Velosah

Westbrass D271H-12 Velosah

Westbrass D271H-12 Velosah Hot Water Dispenser

  • Rubbed Bronze Finish
  • Durable Material
  • Available in 6 different finishes
  • High Arc

Why we like it: Really nice finish and available in various colors, it´'s easy to use and effective. 

This instant hot water heater by Westbrass has an oil rubbed bronze finish. Oil rubbed bronze is an almost black color but it has copper undertones that make it a top choice for those who love a rustic, antique, or vintage look. The finish is easy to clean and resilient to all kinds of surface damage.

This hot water dispenser has a single handle that is easy to use to start and stop the flow of water. The hot water heater sits below the counter so it is completely out of sight to you and your guests. The lever for the hot water is auto-off which helps to prevent accidents as well as wasted water. The faucet is 9 ¼ inches tall and has a thin elegant spout.

The steel hot water tank and brass faucets are extremely durable and made out of the number one materials for sinks and instant hot water heaters. Brass and stainless steel are resistant to heat and moisture so they can last a lifetime without rust or corroding. They are also very resilient materials that are easy to clean and maintain as germs and bacteria don’t stick to the surface.

Westbrass has been around since 1935 and has a reputation for creating excellent products that stand the test of time. For information about the warranty for this hot water dispenser you can contact their customer service team directly. Their customer service representatives are very friendly and ready to help with any questions about installation or warranties.

Instant Hot Water Dispenser Buyers' Guide

Best Kitchen Sinks Reviews

Just like the water heater that provides hot water to your sink and bath, a hot water dispenser serves as a miniature version of a boiler and provides instant hot water on demand for your kitchen.

Hot water dispensers are handy for heating water for a variety of kitchen tasks and food prep such as making hot drinks, soups, and sauces. You can also use a hot water dispenser for cleaning tasks, de-thawing, warming a baby bottle, or rinsing stains from clothes. The water provided by a hot water tank is not as hot as true boiling water, but is hot enough to use for a lot of the tasks that you would typically have to boil water for. A hot water tank is also faster than heating water in a kettle.

Some instant hot water heaters are made for installation under the sink, whereas others are a separate piece, but both types connect directly to your water supply. Below-sink hot water dispensers are the most practical. Typically their hot water tank is made of stainless steel and includes a metal heating element that uses electricity for heating water to exactly the right temperature.

The temperature of the water provided by a hot water dispenser varies and typically caps off at around 200 degrees. Some hot water dispensers can also provide cold water and can replace a regular sink faucet in a pantry or bar. High-quality hot water dispensers sometimes include safety features to prevent overheating, but in general are very safe for use in the home.

Things to Consider


Many hot water dispenser brands are adjusting to fit the needs of the modern consumer with a focus on sustainability and efficiency. If you prefer to shop ethically, look for a brand that works with the EPA and Energy Sense to provide eco-friendly and efficient home goods and products. The brands included in this guide have decades of experience in producing home goods, and are some of the industry leaders in terms of engineering.


The materials used in the construction of a hot water dispenser will also determine how much it costs. Heavy duty materials are typically more expensive, and the finish can also affect the price. A shiny chrome, copper, or gold finish will be more expensive than like steel.

The hot water tank in an instant water system is usually made out of stainless steel or other heavy-duty metal. For the spout and faucet of the hot water dispenser there are a variety of different finishes available, but brass is preferable as it resists corrosion and has a long life.

Capacity and Power

Most instant hot water heaters hold between half a gallon and two gallons of water a time, providing between sixty and one hundred glasses of near boiling instant hot water per hour. Still, your model's exact capacity and power will determine how much hot water your instant water dispenser can heat and provide at one time. A high-capacity instant hot water tank will use more energy (and cost more money) than a smaller one.

The heating element within the hot water tank can vary from anywhere between 500 and 1300 watts. Bear in mind that a more powerful heater will use more energy over time, which is why it is also important to consider the energy unit of whichever system you choose.

Temperature Range

There are a range of temperatures available on almost all instant hot water dispensers. Since they are typically made specifically for kitchen tasks, it is essential to be able to pinpoint the right temperature for proper cooking and cleaning. The temperature range can vary from product to product, but generally starts at between one hundred and one hundred and fifty degrees Fahrenheit and stops a bit of above 200 degrees Fahrenheit, but not letting the water boil. 


Often the faucet is included with the purchase of a hot water dispenser, but you can also buy tanks and faucets separately. Be warned that sometimes using the wrong faucet with the hot water tank could void the warranty. 

Some faucets have the option of either hot water only or both hot and cold water, so you can use the faucet as your main water source, including cool water for a bar or pantry. The finish for the faucet can vary, but brass is usually the best material for the main construction of the faucet as it is resilient to all kinds of damage including rust and corrosion from water and heat.

Boil Dry Protection

If the hot water tank is empty and the unit attempts to boil it, this can be a safety hazard. Most instant hot water dispensers have a boil dry protection built in to prevent accidents and fires, and this is a good safety feature to check for when you're shopping.

Safety Lock

Water from an instant hot water heater can cause accidental burns and scalds to sensitive skin. Choosing a dispenser with a built-in safety lock is one way to prevent accidental burns. This is especially important if you live in a home with children or elderly who may accidentally turn on the wrong faucet to wash their hands and burn themselves.

Energy Efficiency

Most instant hot water dispensers are very energy efficient and cost as little as six cents a day. When shopping for an instant water dispenser, look for Energy Star approval to check that your unit will be as efficient as possible. Energy Star products are rated 20% more efficient than others, which protects the environment and also reduces your energy bill.

Adjustable Thermostat

The thermostat on a hot water dispenser system should be adjustable and go up to a temperature that is nearly boiling and hot enough to make tea, coffee, soup, and other dishes. The range of temperatures can vary, usually capping off at around 200 degrees which is perfect for cleaning and hot drinks. Sometimes the thermostat will display the hot water tank temperature digitally, or it may indicate the temperature via an LED light on the tank.


Modern instant hot water dispensers come in a variety of styles and colors. If you do not want a traditional boring looking water faucet, there are a lot of interesting colors available like gold or black that can spice up your kitchen and will add to your decor. Popular colors for dispensers include metallic chrome, brushed nickel, copper, bronze, oil rubbed bronze, and stainless steel

Installing an Instant Hot Water Dispenser

Installation processes can vary for instant hot water dispensers, and if you decide to hire a professional installer you'll need to take the cost of labor into consideration. If you are hiring, it's always a good idea to use a brand approved installer, as sometimes DIY installation can void the warranty on the product. Customer service websites can usually help with this.

There can also be safety concerns with installation due to electricity and water, which is why leaving installation up to a professional plumber is recommended though not required.

Instant Hot Water Dispensers Comparison Chart

Instant Hot Water DispensersTank SizeWattageWeightRating
InSinkErator Contour⅔ gallon tank750 watts7.4 lbs9
InSinkErator HOT150⅔ gallon stainless steel tank750 watts7 lbs9
Ready Hot RH-200-F570-CH2.5 quart stainless steel tank1300 watts13.8 pounds8
InSinkErator H-Wave-C⅔ gallon stainless steel tank750 watts8.3 pounds 8
InSinkErator View⅔ gallon stainless steel tank750 watts3.8 pounds 8
Westbrass D271H-12N/A750 watts11.8 pounds 7

Final Words

Hopefully our instant hot water dispenser reviews and buying guide have helped you choose the best dispenser for your home. Instant hot water dispensers are a convenient way to have near boiling water on hand the touch of a lever. They make the perfect addition to a high capacity kitchen and can make a great gift for people who love coffee, tea, and hot drinks. In addition to being used for food prep and hot drinks, a hot water dispenser can be used for cleaning tasks around the home.


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