Buying Guide

Hot and Cold Water Dispensers


Cold water dispensers provide cold, clean water for drinking and cooking. Hot water dispensers provide water for many other activities, including food and beverage preparation. 

The below shows different types of activities a hot water dispenser can help you with.

Beverage Preparation

  • Coffee, tea and cocoa

Food Preparation

  • Pasta and instant noodles
  • Soup
  • Rice
  • Gelatin
  • Sauces
  • Cereal
  • Baby food

Cleaning and Household Activities

  • Soften and rinse dried food from pots and pans
  • Remove labels from jars
  • Prepare canning jars
  • Clean containers for recycling
  • Loosening tight lids on cans and jars
  • Polishing silver
  • Making hot compresses to relieve aches and pains
  • Preparing potpourri


  • Preparing baby bottles
  • Heating an ice cream scoop or cheese slicer to make use easier
  • Melting chocolate and softening butter
  • Thawing meat or frozen vegetables
Hot Water Dispensers

These dispensers feature a faucet connected to a small storage tank that is mounted under the kitchen sink. The tank is connected to the cold-water supply line and to a standard 120 Volt household circuit that powers an electric coil.

  • Temperature can usually be adjusted and range from around 140 degrees to just under 200 degrees
  • Make sure the water doesn’t get too hot or it can damage the tank
  • Replaceable thermal fuse helps to prevent tank from overheating
  • Tanks often hold around a half gallon of hot water at a time
  • Dispensers generally produce around 40 to 60 cups of hot water per hour
  • Faucets may feature knobs, levers, push buttons and other configurations
  • Wattage varies form 500 to 1,300 watts but is usually around 750 watts
  • Units dispense water more slowly than conventional faucets
Cold Water and Combination Dispensers

Cold water dispensers or water coolers are often freestanding units. They usually feature large jugs of water that must be replaced as they are used.

  • Freestanding water dispensers are ideal for garages, workshops and porches
  • Combination dispensers provide both ice-cold and near-boiling water
  • Some combination units feature LED displays that indicate hot and cold temperatures
  • Must periodically run a cleaning solution through freestanding units
Installation and Efficiency Considerations

If you’re installing a hot water dispenser into your sink, the sink must have a hole for the spout. Make sure to turn the water off before you begin installation. When you finish installing the unit, turn the water back on and run the faucet for a few minutes to make sure nothing is leaking.

  • Tools needed for the job include a cordless drill, screwdrivers, adjustable wrench, pliers, tube cutter and level
  • A saddle valve makes it easy to connect a hot water dispenser to your supply line
  • May need to check local building codes to ensure saddle valves are permitted
  • Leave space underneath dispenser if it has a drainage plug
  • If installing a filter at the same time, leave enough room to access the cartridge
  • ENERGY STAR qualified units improve separation of hot and cold water for better insulation and improved chilling mechanisms
  • Childproof Lock. Prevents children from accidentally getting scalded
  • Gooseneck Faucet. Makes it easier to get larger pots and pans and taller glasses underneath the hot water dispenser. Some also swivel for easier use.
  • Finishes. Choose a finish that complements existing faucet, Available finishes include white, black, brass, chrome, almond and more.
  • Filter. Built-in filtration systems help to ensure high-quality water that is free of contaminants.
  • Drain Plugs. Allows you to drain a hot water dispenser’s tank to prevent lime scale buildup.