10 Best Instant Hot Water Dispensers

Hot water dispensers are more valuable than you may think. You save time by not waiting for the kettle to boil, or for anything else. However, it’s great for your physical being as well.

Hot water is great for your internal system. One benefit is that hot or warm water is far more hydrating than cold water. Additionally, hot water also rids your nervous system of excess toxins!

Getting an instant hot water dispenser saves you both time and money. You’ll spend less time to fulfill your hot water needs and money since the tank retains the hot water temperature for a longer period.

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Our Top Pick


InSinkErator H-HOT150SN

Our top pick is an affordable, modern, and compact all-in-one instant hot water dispenser designed to save time and money. It can be attached to the edge of the sink to deliver instant hot water whenever needed!

How Do Instant Hot Water Dispensers Work?

Unlike a top or bottom loading water dispenser, an instant hot water dispenser is connected either on the edge of your sink or under it.

The instant hot water tank starts heating the water to a near boiling point storing it inside the tank itself. As soon as you start to use the heated water inside the water tank, cold water replaces the heated water being used.

After that, it repeats the same process to reheat the cold water supply to give hot water.

In this case, all instant hot water dispensers have temperature settings to give you an idea of the temperature at which the unit is operating.

Furthermore, instant hot water dispensers save you a lot of money and time since you don’t have to fill the water tank repeatedly. All you need to do is connect the water dispenser to your sink water supply.

Best Instant Hot Water Dispensers Comparison

Image PRODUCT/ Features Rating  
Top PickComparing InSinkErator H-HOT150SN-SS InSinkErator H-HOT150SN-SSTemperature Range: 160-200 Fahrenheit
Tank Capacity: ⅔ gallon
Price: $250
Warranty: 1-year in home
Wattage: 750 Watts
Cups per hour: 60 cups
Read Full Review
Budget PickComparing Anaheim AH-1300 Anaheim AH-1300 Temperature Range: 140-190 Farenheit
Tank Capacity: ⅝ gallons
Price: $120
Warranty: 1-year limited
Wattage: 1300 Watts
Cups Per Hour: 60 cups
Read Full Review
Trusted PickComparing Bosch 3000 T Bosch 3000 TTemperature Range: 65-145 Fahrenheit
Tank Capacity: 2.5 gallons
Price: $155.30
Warranty: 6-year unit warranty, 2-year parts warranty
Wattage: 1440 Watts
Cups Per Hour: 109 cups
Read Full Review
Portable PickComparing Zojirushi Micom Zojirushi Micom Temperature Range: 160-208 Fahrenheit
Tank Capacity: 1.06 gallons
Price: $132
Warranty: 1 year
Wattage: 700 Watts
Cups Per Hour: 17 cups
Read Full Review
Comparing InSinkErator HWT-F1000S InSinkErator HWT-F1000STemperature Range: Up to 210 Fahrenheit
Tank Capacity: ⅔ gallon
Price: $351
Warranty: 3 years for the hot water and 1 year for the water filtration system
Wattage: 750 Watts
Cups Per Hour: 60 cups
Read Full Review
Comparing FRANKE HT-300 FRANKE HT-300 Temperature Range: 194 Fahrenheit
Tank Capacity: ⅝ gallons
Price: $300-$400
Warranty: 1 year limited
Wattage: 1300 Watts
Cups Per Hour: 60 cups
Read Full Review
Comparing Ready Hot RH-SS Ready Hot RH-SSTemperature Range: 140-200 Fahrenheit
Tank Capacity:
⅔ gallon
3 years manufactures warranty
1300 Watts
Cups Per Hour:
60 cups
Read Full Review
Comparing InSinkErator Contour InSinkErator ContourTemperature Range: 160-210 Fahrenheit
Tank Capacity: ⅔ gallons
Price: $210
Warranty: 3-Year
Wattage: 750 Watts
Cups Per Hour: 60 cups
Read Full Review
Comparing InSinkErator H-WaveC-SS InSinkErator H-WaveC-SSTemperature Range: 160-210 Fahrenheit
Tank Capacity: ⅔ gallons
Price: $354
Warranty: 3-year limited
Wattage: 750 Watts
Cups Per Hour: 60 cups
Read Full Review
Comparing Waste King H711-U-SN Waste King H711-U-SN Temperature Range: up to 190 Fahrenheit
Tank Capacity:
⅝ gallon
up to $300
1-year replacement
1300 Watts
Cups Per Hour:
100 cups
Read Full Review

1. InSinkErator H-HOT150SN-SS

review of InSinkErator H-HOT150SN-SS

This is one of the best instant hot water dispensers on the market, so it is also our top pick. The InSinkErator HOT150 is designed with a satin nickel finish.

It has a stainless steel tank that holds up to 2/3 gallons of boiling water. This model is one of the best instant hot water dispensers with adjustable controls for heat settings.

With the HOT150 enjoy near-boiling water whenever you need it!  These instant hot water dispensers save you both time and money.

Whether it be preparing hot tea in a hurry, hot coffee, or steaming vegetables the InSinkErator HOT 150 works instantly to provide piping hot water in a matter of minutes.


  • Weight: 7 pounds
  • Dimensions: ‎12.06 x 8.38 x 14.62 inches
  • Color: Satin Nickel


  • Available with a stylish faucet for your sink
  • Adjustable temperature controls
  • Satin nickel finish and color
  • Stainless steel hot water tank

The HOT150 system is designed to give you tool-free tank connections which make for a DIY installation. The system is easy to install and requires no additional plumbing.

Customer Rating – 4.6 out of 5 stars.

+ Affordable
+ Large temperature range
+ Provides boiling water in a few minutes
+ Saves time and money
+ No installation required
+ 60 cups of boiling water per hour
Tank gallon capacity may be less

2. Anaheim AH-1300 (Budget Pick)

review of Anaheim AH-1300

The Anaheim instant hot water dispensers are one of the most budgeted and affordable hot water dispensers. The best part is you get an extremely affordable hot water dispenser that is still equally efficient.

The Anaheim 1300 has an adjustable temperature range of 140-190 Fahrenheit. Be it hot drinking water, boiling tea water, or even heating baby bottles, this does all that and more.

Additionally, these instant hot water dispensers supply up to 60 cups of boiling water an hour. You don’t have to wait a long time since it is equipped with a fast and efficient heating system.


  • Weight: 2 pounds
  • Dimensions: 10.13 x 10.13 x 13.75 inches
  • Color: White


  • ⅝ stainless steel gallon capacity
  • Self-resetting fuse
  • Comes with a 1-year limited warranty
  • Compact size and weight

You’ll need a plumber to install this unit since it requires a water source. This won’t be an easy task if you’re not well versed in plumbing. Additionally, if you want a house connection and you’re installing this unit for the first time, you’ll need to get a separate hot water faucet.

Customer Rating – 4.3 out of 5 stars.

+ Most affordable
+ ⅝ capacity hot water tank
+ Small size
+ The self-resetting thermal fuse prevents the dry start
+ Great help in the kitchen for any sort of beverage
Professional help required for installation
Doesn’t come with an existing hot water faucet

3. Bosch 3000 T (Trusted Pick)

review of Bosch 3000 T

The Bosch 3000 is designed to be compact so that it can be installed on the floor or the wall. Their sleek and attractive design makes them easy to fit in a cabinet or under a sink.

The Bosch 3000 T is installed at a point of use to provide instant hot water. It additionally has a temperature and pressure relief valve.

Having a cold water supply for your kitchen or any faucet isn’t efficient. This is why the Bosch 3000 has a point-of-use installation to supply boiling and cold water whenever required.

The Bosch 3000 has three uses. It can be used as a single sink heating unit, as additional help to an existing water heater, and can also be installed for a tankless water heater that doesn’t work properly.


  • Weight: 15.5 pounds
  • Dimensions: 13.75 x 10.75 x 13.75 inches
  • Color: White


  • Point of use installation
  • Compact design
  • Glass-lined material over the water heater
  • Easily mounted

Since it is a point of use installation, these units require the help of a professional for installation.

Customer Rating – 4.5 out of 5 stars.

+ High-temperature range
+ Affordable price
+ Can be used as an instant hot water dispenser in many cases
+ On-demand hot water
2.5-gallon capacity may be less for a larger family

4. Zojirushi Micom (Portable Pick)

review of Zojirushi Micom

The Zojirushi Micom instant hot water dispenser focuses on more than just giving cold and hot water. It operates at least 4 temperatures; warms to hot water temperatures to give your desired beverage or drink.

This water boiler first dechlorinates the water to then keep it at the desired temperature needed, unlike most hot water dispensers.

These hot water dispensers have a quick temp mode to heat bottled or filtered water directly for a long time.

Furthermore, the system focuses on using less energy and produces less steam to dispense hot water instantly whenever required!


  • Weight: 6 pounds
  • Dimensions: 11.25 x 8.25 x 13.5 inches
  • Color: Black


  • Computerized temperature control system
  • Sound indicator to indicate the completion of the boiling process
  • The energy-saving timer function of 6-10 hours
  • Fold-down handles provide easy transportation

The Zojirushi Micom instant water heater has an easy-to-clean interior and requires almost no maintenance. Its installation depends on where it is being installed. If you want to reassemble or repair any part, you should call the help of a technician.

Customer Rating – 4.7 out of 5 stars.

+ Quick temp mode
+ Operates on a large temperature range
+ 1-year warranty
+ Extremely affordable
Low tank capacity

5. InSinkErator HWT-F100S

review of InSinkErator HWT-F100S

Another instant hot water dispenser by InSinkErator is one of the best hot water dispensers. This water dispenser saves you time and money. Be it hot drinks, beverages, for cooking, or cleaning, the InSinkErator F100S provides instant hot water.

With an easy-to-use temperature control switch, this hot water dispenser can dispense water at a boiling point of up to 200 Fahrenheit. Unlike a water cooler dispenser, you get hot water instantly with the instant hot water dispenser.

The InSinkErator is one of the oldest companies to manufacture and produce instant hot water dispensers and their products are a testament to that. They make the perfect complement to your sink faucet as well!

Their durable hot water tank along with their F100S filtration system makes this one of the best instant hot water dispensers.


  • Weight: 4.5 pounds
  • Dimensions: 9.88 x 8.38 x 14.63 inches
  • Color: Silver


  • Adjustable temperature control
  • Stainless steel hot tank
  • Comes with the F100S filtration system

The tank to this instant hot water dispenser has tool-free connections and dry start protection for easy installation.

Customer Rating – 4.5 out of 5 stars.

+ Energy-efficient
+ Filter system removes chlorine and improves taste
+ Maintains water’s temperature
+ Long warranty
Tank capacity may be less

6. FRANKE HT-300

review of FRANKE HT-300

Made with a stainless steel tank that makes it durable on its own, the FRANKE HT-300 provides you with at least 60 cups of instant hot water per hour.

FRANKE’S instant hot water dispenser also has an extensive filtration system that gets rids of bacteria, lead, cysts, chlorine, or any impurity.

All of FRANKE’s systems are designed to be installed for under sink point-of-use making it easy to filter and dispense cold water and hot.

The FRANKE HT-300 significantly reduces your waiting time to acquire instant hot and cold water at a steady water flow.


  • Weight: 9.2 pounds
  • Dimensions: 9.4 x 7.8 x 11.6 inches
  • Color: Silver and black


  • ⅝ gallon hot water tank
  • Stainless steel tank
  • Dial to adjust the temperature
  • Maximum temperature of 194 Fahrenheit

With the flexible host connection kit, you get with the tank, the installation of this hot water dispenser takes almost 30 minutes. However, if you’re planning to replace an existing tank that will be trickier and requires the help of a professional.

Customer Rating – 4.3 out of 5 stars.

+ Easy DIY installation
+ Every tool for installation is provided with the unit
+ Tank made with stainless steel
+ Less energy consumption to reduce waste
Slightly heavy compared to other hot water dispensers

7. Ready Hot RH-SS

review of Ready Hot RH-SS

The Ready Hot RH-SS is one of the best hot water dispensers that operates between 140 to 200 Fahrenheit. This gives you the option to use warm or piping hot cups of water.

The Ready hot can use up to 1300 Watts of power to give you instant hot water without wasting your time or energy.

This unit strives to be energy efficient as well as safe! To extend the durability and operational life of the unit and prevent immediate tank burnout, the Ready Hot has a thermal fuse that resets.

With the Ready Hot RH-SS, you don’t need to worry about inconsistencies in the water temperature at any time! Enjoy hot beverages, drinks, and even warm baby bottles with this instant hot water dispenser.


  • Weight: 14.47 pounds
  • Dimensions: ‎11 x 8 x 12 inches
  • Color: Brushed Nickel


  • Made with an open vent dual lever
  • Stainless steel water tank
  • Automated tank protection
  • Brushed nickel finish

The RH-SS is easy to install with quick connectors to encourage a smooth water flow when needed.

Customer Rating – 4.3 out of 5 stars

+ 3-year manufacturers warranty
+ Hot and cold faucet connections
+ Uses up to 1300 Watts of power
+ Instant dispenser features
For safety reasons, a handle needs to be pushed before hot water can flow through faucets

8. InSinkErator Contour

review of InSinkErator Contour

Another InSinkErator instant hot water dispenser because we want you to choose the best. The InSinkErator Contour comes with a chrome faucet to accompany your kitchen.

Be cleaner, faster, and save time with this hot water dispenser. Be it for cleaning, cooking, hot beverages, or drinks, enjoy filtered hot or cold water at any instant.

The easy to control temperature makes it simple to operate a range of temperatures between 160 to 210 Fahrenheit.

So if you need something in your kitchen that gives you heated water quickly, this is one of the best instant hot water dispensers.


  • Weight: 7.4 pounds
  • Dimensions: ‎6 x 3.7 x 5.6 inches
  • Color: Chrome


  • Comes with a chrome faucet
  • Manual temperature dial
  • Stainless steel tank

This unit is incredibly easy to install and saves you time and the plumber’s payment. All it takes is a hole and electricity under your sink. You’ll be aided furthermore with the manual guide provided with the unit.

Customer Rating – 4.7 out of 5 stars

+ Long warranty
+ Stainless steel tank
+ Affordable
+ Provides up to 60 cups per hour
You may hear some sounds while the unit operating

9. InSinkErator H-WaveC-SS

review of InSinkErator H-WaveC-SS

Made to extend the dispenser’s longevity and durability, this InSinkErator hot water dispenser was constructed of stainless steel.

This water dispenser comes with a chrome faucet to use in your kitchen. It operates to give a near hot water supply.

The main purpose of this water dispenser is for drinks and beverages. You can use the intuitive switch to adjust and change the temperature. This hot water dispenser operates at a temperature between 160 to 210 Fahrenheit.

To consume less energy and be waste efficient, the hot water lever automatically shuts off after heating!


  • Weight: 8.34 pounds
  • Dimensions: 6.75 x 3.5 inches
  • Color: Chrome


  • Provides up to 60 cups of hot water per hour
  • Uses up to 750 Watts
  • Stainless steel

It is advised to install this unit at the edge of the sink. The tool-free tank connections make this easy to install all by yourself! It’s best to keep in mind that you need to install this unit near an unswitched AC power outlet.

Customer Rating – 4.6 out of 5 stars

+ Long warranty
+ Extended longevity and durability
+ Adjustable temperature control
+ Easy DIY
The unit may produce sounds while heating water

10. Waste King H4ing H711-U-SN

review of Waste King H4ing H711-U-SN

The Waste King instant hot water dispenser offers you manual temperature adjustment between 140 to 190 Fahrenheit. It comes with a satin nickel finish curved faucet to accompany your kitchen.

This water dispenser can use up to 1300 Watts of power to give you instant hot water. Furthermore, you can attain near-boiling water for at least 100 cups an hour.

Its safety features include over-expansion which prevents the expansion of the unit whether you’re increasing or decreasing the temperature.

This water dispenser is perfect for teas, soups, hot drinks, or beverages and makes a perfect hot tap in your kitchen.


  • Weight: 13.21 pounds
  • Dimensions: 10 x 10 x 4.5 inches
  • Color: Satin Nickel


  • Comes with a satin nickel faucet
  • Stainless ⅝ gallon steel tank
  • Fully insulated tank
  • Efficient safety features

To install this water dispenser, quick-connect fittings are provided to not mix up any water lines. However, the unit doesn’t come with all the parts you may need for installation.

Customer Rating – 3.6 out of 5 stars

+ 100 cups of boiling water an hour
+ Can use up to 1300 Watts
+ Small and compact size
+ Easy manual adjustment
The faucet may drip sometimes

Why Is An Instant Hot Water Dispenser Better Than A Kettle?

There are several factors as to why hot water dispensers are better than the conventional kettle.

  1. Heated water remains hot for a long period. So you don’t need to worry about reboiling every time you need hot water. Take your time to make tea, warm drinks, or baby bottles.
  2. A kettle only gives you hot water. However, if you choose the right water dispenser you get the option of dispensing both hot and cold water.
  3. In this way, hot water dispensers also focus on being energy efficient compared to a kettle.
  4. With a hot water dispenser, you don’t need to worry about safety hazards. Almost all instant hot water units are equipped with safety features. These features include the automated shut-off to prevent hot water spilling or accidental dispensing.
  5. Since these units come with hot water tanks, they can provide on average up to 60 cups of heated water per hour. Some units even average on 100 cups per hour.
  6. The instant hot water dispensing unit is usually installed under the sink and blends into the kitchen without taking additional space. Additionally, these units are available in many colors to be better suited to your decor.
  7. With the temperature manual, you have an exact idea at which temperature the water is heated.
  8. You don’t need to refill these units to attain hot water, unlike kettles.
One of the best instant hot water dispenser in a household

How To Pick An Instant Hot Water Dispenser?

With multiple updated features, instant water dispensers can be used at home, schools, offices, or kitchens. Here are a few factors to consider to make your hot water unit the best for you!

Tank Capacity

The size and capacity of each water tank in a dispenser varies. Tanks can hold between 1 to 2 liters of water. Getting a 1-1.5 liter tank works great if you have a small family and don’t use your unit for gathering and servings.

However, a large tank would be better if you are a large family, dispensing hot water for multiple purposes like cooking, cleaning, and drinking.

This also determines the amount of water your unit can dispense. Some units have preset amounts of water they can provide per hour. Other units can offer control over the amount of water you need to dispense.

Power Of the Tank

Just like the amount of water a tank can hold, similarly, there’s a power limit to each dispensing unit. Depending on the unit, the power ranges from 500,750 and 1300 watts. The more power the faster a dispensing unit can dispense water.

For instance, a half-gallon tank with 750 watts of power averages 60 cups of hot water an hour!

The more the power, the higher volume of water dispensed.

Temperature Control

If you want to use your hot water dispensing unit for cooking, cleaning, and beverages, one constant temperature will not do.

Some units provide one temperature to operate the dispenser on for whatever purpose. But you would be better suited to a unit with temperature control settings.

This will continuously give you an idea of which temperature your water dispenser is operating at. Furthermore, it’ll allow you to make use of warm, hot, or cold water for any purpose required!

Energy Efficiency

Even if your water has heated fully, and your unit keeps using additional power, that becomes a problem.

This will waste energy and increase finances for you especially if you have a large family.

Most units have an automatic shut-off feature to turn the power supply off as soon as your dispenser is done heating water. If you get a unit that isn’t energy-efficient you’ll have to physically take care of this problem each time!

Additionally, if you have a small family, a smaller dispenser will save you more energy since it’ll heat less water compared to large tanks.

Water Filtration

Although boiling water gets rid of basic impurities in the water, it’s better to get a unit with a filtration system.

A hot water dispenser coupled with a filtering system will dispense premium quality water for drinking and cooking.

It is important to focus on a brand that provides both heating and filtration.

Drip Tray

Although these dispensers don’t make the same mess as a loading water dispenser, that might not be the case every time.

To reduce wastages and excess messes, you’ll need a dispenser that makes use of a drip tray to collect any excess water.

Make sure the drip tray is detachable so it can easily be cleaned.

Easy To Use

Some water dispenser units can be connected to your power outlet alone or they can also be installed with the sink.

Ensure that you are aware that wherever the unit is being installed is accessible and easy to use. Furthermore, make sure you purchase a unit that allows you to control the amount of water you dispense.

One of the best instant hot water dispenser under a single sink features in each frames

How To Install An Instant Hot Water Dispenser?

Usually, a hot water dispenser is installed during a remodeling when you’ve yet to install your sink. Here’s how installation takes place.

  • First, drill a hole in your sink or counter where the unit is being installed. This will create the spout to link the hot water to the sink.
  • Then you need to secure the spout in place by tightening its nuts from underneath.
  • The next step depends on your instant hot water model. The unit will deduce whether it is supposed to be installed on the wall or under a sink.
  • Connect your unit’s water tank with the main cold water supply using the saddle valve. Then use compression fittings to connect the dispenser to the valve.
  • Lastly, plug the spout tube connectors into the top of the water tank.

Maintenance of Instant Hot Water Dispenser

Even though hot water dispensers require very little maintenance. However, it dispenses water day and night so you should know how to clean it.

Make sure you unplug it before doing anything for safety reasons. Additionally, don’t forget that a heated water tank is attached so wait a few minutes for it to cool down.

It is recommended you start cleaning the outside and then the inside. Do not use harsh chemicals, detergents, or bleaches for the cleaning process.

Instead, a mild dish wash soap would work just fine. Use a drop or two to 4-5 cups of water. After this use a soft cloth to immerse the solution into. You can then use this to clean the insides.

Use another dry cloth to clean off any excess and to let it start drying. Make sure that the tank has fully dried before you plug it back into the power outlet.

FAQs on Best Instant Hot Water Dispenser

Is It Safe To Use Instant Hot Water Dispensers?

Yes, it is! Instant hot water dispensers are made of durable materials to ensure longevity. However, it does use electricity, so be careful while handling the machine to be precautionary.

How Long Do Hot Water Dispensers Last?

The longer the warranty the more your unit will last. However, users report that these units can last up to 5 or even 10 years in some instances.

Can Children Operate An Instant Hot Water Dispenser?

The longer the warranty the more your unit will last. However, users report that these units can last up to 5 or even 10 years in some instances.


An instant hot water dispenser gives meaning to quickness and ease! With the buying guide above, don’t hesitate to get your hands on the best instant hot water dispenser!

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