Best Instant Hot Water Dispensers — Buying Guide

Last updated on July 26th, 2022 at 07:06 am

Getting hot water straightaway is just possible by any of the best instant hot water dispenser installed in your place. There are sorts of designs that come in handy for different types of spaces—but if you are willing to install one in your place, then this guide is all yours. Take a tour and you will know the best features to look at before buying the relevant product.

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Based on the convenience in installing, the time required to start, water tank storage capacity, and energy consumption ratio, the InSinkErator HOT100 is selected as the best instant hot water dispenser.

Features to Look Before Buying an Instant Hot Water Dispenser

These features are essential to look at before getting your hand on any of the best instant hot water dispensers.

Types of Instant Hot Dispenser

Boil on Demand

  • Consists of a heater with tank storage
  • Boiling a small amount of water, super quickly
  • Small & portable
  • Energy consumption

Could Be Better:

  • No separate hot tank for boiled water
  • No continuous supply of hot water
  • Needs often refilling

Hot Water Tank Dispensers

  • Direct water supply
  • Fixes to wall/under sink installation
  • Such models have built-in water filters
  • A faucet is required for the water outlet
  • Adjustable water temperature
  • Built-in thermostat
  • A large amount of hot water

Could Be Better:

  • Energy wastage while keeping water hot
  • Expensive
  • Plumbing work is required

Bottle Load Water Dispenser

  • The bottle is placed at the bottom
  • No lift to the bottle and placed on the dispenser
  • The conventional coils are used for heating

Could Be Better:

  • The suction to drift water can get faulty
  • Bottle refills are needed timely

Direct Piping Water Dispenser

  • Direct water source
  • No need for refills
  • Instant usage
  • Water is heated as per demand

Could Be Better

  • Need a separate water tank
  • Auto refill systems need to be maintained properly

Energy Efficiency

  • The energy efficiency is a key point to check for the water dispenser.
  • The water tank dispenser uses the energy needed to heat the water; the energy gets wasted while keeping that way.
  • For efficient energy-saving features, the direct piping hot water dispensers are best for the cause.

Estimating the efficiency

You can check the overall comparative efficiency of the hot water dispenser by calculating the energy wasted while heating the water.

Water Temperature

Check whether the boiling water machine you are going to buy has that preferred range of temperature. Likewise, if you need to conjure deep hot water for coffee, or icy cold contrarily then there are models that will meet your specifications.

Cleaning and Drainage Mechanism

Any of the best hot water dispensers needs proper cleaning and maintenance, and what a mess it would be, if you need to go through the process again and again but still the satisfaction doesn’t come around the corner.


Most of the hot water dispensers work silently but contrarily some do not. When you check them in the store, they may sound quiet but at home, the quiet environment can make their smallest buzz being listened easily—thus it is best to check their noise already in a peaceful surrounding.

Water Faucet

In some models, the water faucets are needed separately—the hot water dispensers that are installed under the sink or fixed on the walls require a faucet for the outlet of water.

Without Faucet

The dispensers that have an inbuilt outlet for the water don’t need the faucet but some of the models come with customized options for them.

Installation Site

Depending on your requirement, the hot water dispenser comes in different designs and structures that may or may not be suitable to your installation site.

Under the Sink

The installation under the sink cabinet is super convenient and space-efficient. The latest models come with a handy under sink installation design that is one of the reasons, owners love them.

Fixed with the wall

This is the most typical installation style for any of the tankless instant hot water dispensers. The models are light weighted and directly attached to the water source.

Counter Top

The countertop hot water dispenser is an easy-to-move option if you don’t want to fix that somewhere permanently. They are mostly messy when leakage occurs.

Time Required to Heat Up

If you have enabled the dispenser then the time it requires to provide heated water should be check before buying any of the relevant products. Typically, it takes from 1 to 2 mins—but as in the newer and superior models, it is reduced and fallen to the count of seconds.


The design of the instant hot water dispenser is adequately important to consider, it can cheer up your place on the other hand, an odd one can ruin the aesthetics of the place as well.

Top 6 Best Instant Hot Water Dispensers

ImageNameRating out of 5Check Price
GCI Outdoor Freestyle Rocker Chair

☞ Enjoy smooth rocking
☞ Set up or pack up quickly
☞ Stylish and comfortable
4.8View Product
ALPS Mountaineering King Kong Portable Folding Chair

☞ Roomy Seat Width
☞ Strong, Durable Fabric
☞ Patented, Powder-Coated Steel Frame
4.7View Product
Kijaro Dual Lock Folding Chair

☞ Durable Ripstop Fabric
☞ Organizer
☞ Carry Bag
4.6View Product
Coleman Oversize Quad With Cooler

☞ Cooler Pouch
☞ Strong Steel Frame
☞ Cup Holder & Side Media Pocket
4.5View Product
TravelChair Slacker Folding Camping Chair

☞ On-the-go seating for every situation.
☞ Powder coated steel
☞ Lightweight
4.5View Product
Zero-gravity Camping Chair

☞ Foldable & Portable
☞ Smooth Lockable Reclining System
☞ Sturdy & UV-Resistant
4.3View Product

1. InSinkErator HOT100

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Hot Features:

  • Chrome Finish
  • 2/3 Gallon Stainless Steel Tank
  • Near-Boiling Water
  • Weight: 7.4 Pounds
  • Wattage: 120 W
  • Dimensions: 5.38 x 2 x 6.25 Inches
  • Installation: Deck Mounted
  • Easy-to-adjust temperature control
  • Tool-free tank attachments
  • Dry-start Protection
  • Home Service Included

The InSinkErator HOT100 is a compact but one of the best instant hot water dispensers in an economical price range. The model includes stainless steel faucet, that allows the dispenser to be independent of the limitation of placement. Likewise, the compact design is set for the under-the-sink or wall-fixing requirement of any customer.

The installation of this set is not complex and does not require any hectic plumbing work. the manual guide for HOT100 describes the whole way thoroughly. The process for heating water is super quick, whether you need to steam vegetables in a flash, or to make a gourmet coffee, this is the right instant instrument for you.

It comes with an exclusive one-year guarantee that allows you to discourage any fault shown in it or replace any faulty part absolutely without any cost. The aesthetic design and unswerving features make HOT100 the best instant hot water dispenser.

2. Bosch Tronic 3000 T Electric Mini-Tank Water Heater

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Hot Features:

  • 2.5 Gallon Point of Use
  • Thermal Efficiency 98%
  • Size: 13 x 13 x 10 inches
  • Glass Lined Material
  • Power: 12 Amp
  • Easy Installation
  • Instant Heating System
  • High-Quality Design
  • Quick Recovery Rate
  • Easy Installation
  • 37” Cord Length
  • Power: 120 V
  • Weight: 15 Pounds
  • Wattage 1440 W

Bosch is highly regarded for its quality in the market, for this model they have integrated CFC-free foam insulation for maximum energy efficiency over a glass-lined tank for durability. The small dimensions allow the user to install it anywhere they feel like—under the sink, with a wall, etc.

The time needed to heat up the water in Tronic 3000 T is from 1 min to 3 min that is supremely quick as compared to other heaters. This acts as three-in-one options, can be used as the sole water heating source for a single outlet, as a supplement to an existing heater, and as a buffer installed in-line with a tankless water heater.

The claim for energy efficiency is solemnly grave, no matter what configuration is used, there’s minimal stand-by-loss from this instant hot water dispenser.

3. Ready Hot Water Dispenser


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Hot Features:

  • 65+ Cups Per Hour
  • Adjustable Temperature
  • Heating Range: 122 F to 208 F
  • Need Water Faucet
  • Automated Tank Protection
  • Thermal Fuse
  • Wattage: 1300 W
  • Pre-installed Power Cord
  • Under Sink Installation
  • Weight: 13 Pounds
  • Dimensions: 9 x 8 x 13 inches
  • Power: 110 V
  • 3 Year Warranty

Ready Hot is known for providing aesthetic yet the best instant hot water dispensers. The model is easy to install with included quick connectors. They make it less likely to hustle for any kinked links while installation.

The display comes in two sorts; digital screen and the typical but classic analog display, likewise the rates vary for both types. Energy consumption is super economical, the manufacturers claim that it uses less electricity than a 40-watt bulb.

The panel holds a sleeky display that tells the current temperature of the water, the on/off status of the heater, the manual for lowering or raising the temperature, and contains the power switch. The device gives perfect heated water for hot coffee, hot tea, oatmeal, or noodles.

4. Avalon B8BLK Countertop Bottle-less Water Dispenser

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Hot Features:

  • Bottle-less Water Dispenser
  • Hot & Cold Water
  • In-Built Filtration System
  • Child Safe Locks
  • Hot Water Temp: 185 F
  • Cold Water Temp: 47 F
  • Energy Star Approved
  • Direct Water Source Required
  • Easy Installation
  • Carbon Block Filter
  • Filter Durability: 6 months
  • Weight: 30 Pounds
  • Dimensions: 13 x 12 x 19
  • Capacity: 1500 Gallons

The Avalon Countertop Instant Hot Water Dispenser contains paddle spouts that make them convenient to use. The model spouts hot water but cold as well. The dual filtration system allows you to directly intake the water from an outro source and clean it for simple use.

The nightlights are integrated into the model so that one can see the spouts in the nighttime as well. The setup or installation process is easy and can be done by knowing the basics thru the manual. The parts necessary for the setup are included in the package, thus no need to rush for the market.

The filter eliminates toxic particulates like chlorine, lead, rust, and bacteria. The process runs like this; water is taken from the source, then it went through the filtration afterward the hot or cold spots.

5. Panasonic Electric Thermo Pot Water Boiler

Panasonic RA41660 Electric Thermo Pot Water Boiler Dispenser NC-EG3000, Slow-Drip Mode for Coffee, Ideal for Tea, Hot Cocoa, Soups and Baby Food, Four TEM, 3.2 quarts, White

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Hot Features:

  • In-Built Tank
  • Storage: 3 Litres
  • LCD Screen
  • Water Gauge
  • Energy Saving Timer: 6 Hours
  • Temp Range: 160 F to 212 F
  • Detachable Power Cord
  • 360º Rotating Base
  • Safety Lock
  • Slow Drip Coffee Feature
  • Charcoal Coated Pot
  • Easy Control Panel
  • Aesthetic Design

The Panasonic Thermo Pot Water Dispenser is viably great for uses than just hot water. The manufacturers have integrated a slow drip coffee system that allows the user to outlet boiled, hot water dripping ounce by ounce to ground any coffee.

The compact design and easy handle make it convenient to transport from buffet table to kitchen cabinet. What makes this thermo pot dispenser special is the charcoal coating inside, that purifies the water as it comes into contact. 6 Hour timer helps save energy efficiently—if it is turned off for sleep, the machine doesn’t heat the water till six hours and after that, it automatically sets the temperature.

The temperature range is not fixed, the control panel gives the complete charge over the temperature you require. A choice range of 160, 180, 190, and 208 F is given on the panel. The pot body can rotate 360. This allows everyone to access it easily.

6. Westbrass DT18N HotMaster

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Hot Features

  • Tank System Hot Water Dispenser
  • Voltage: 5 V
  • Ultra-Fast Heating Element
  • Extremely Energy Efficient
  • Standby Power: 1 Watt
  • 6 Preselected Water Temperature
  • Over Heat Protection System
  • Stainless Steel Sensors
  • Tank Dry Burn Protection
  • 100-cups per hour
  • Weight: 9 Pounds
  • Dimensions: 10 x 10 x 13
  • Flow Rate: 2 Gallon Per Minute

The Westbrass is a renowned asset provider for kitchenettes and bath accessories. This model dispenses hot water on demand suitable for every need as the temperature ranges from 167F-208F. The super-fast heating element allows the user to get instant hot water within a minute.

This ready hot water dispenser uses extremely low energy —Only a 5 V power source is needed to operate this device. The dry-start float and over heat-protective layers are stainless steel thus there will not be any odor or taste corrosion.

The installation and setup are easy and do not need any plumbing work—the dimensions are compact and it can be fit anywhere in the place. A digital display is given to analyze the current temperature of the water inside the tank.

How to Clean Your Hot Water Dispenser?


While finding the best instant hot water dispenser, consider the features and compatibility measures according to the need–the temperature range for heating the water (typical: 157F-208F), power source, wattage, capacity, storage, and likewise included cold water spout is good, etc. Choosing the right model, consider the aesthetics also, as they play a keen role in enhancing your place even more with style and design.


Which is the best instant hot water dispenser?

The InSinkErator HOT100 contains all the features that a person would require from any of the best instant hot water dispensers—Water Faucet, easy to adjust temperature control, under the sink installation design, super easy setup, exclusive 1-year guarantee, and aesthetic chrome finished design.

Are instant hot water dispensers worth it?

Any of the best instant hot water dispensers can save up to 55% as much of the energy from the typical heaters—Else, they provide much control over the adjustability of temperature.

Are instant hot water dispensers safe?

Instant hot water dispensers are safer to use than traditional heaters. This is why people prefer them in their houses, offices, and restaurants.

How long do instant hot water dispensers last?

The given warranty range for any of the best instant hot water dispensers is from 1 to 3 years. Their normal expectancy is FIVE years. If the cleaning and maintenance are adequately done–the range may exceed even that time.

What is the best water dispenser to buy?

It solemnly depends on your requirements, if you are willing to have a fully convenient, compact, and featured water dispenser then InSinkErator HOT100 will be the most suitable for you if with hot water you require cold as well—Avalon B8BLK Countertop is not limited to hot water only, it contains dual filtration system with a cold water spout.

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