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Water Heaters

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Feel confident you're choosing the right hot water heater for your home. Understand the different types of water heaters and the features you should look for.


Compare the advantages and features of these model types.

Electric   Electric
Gas   Gas Propane
  • Generally cost less to purchase than gas water heaters
  • Easy to maintain
  • Require no combustibles or venting
  • Heat water quickly
  • Offer high energy factor ratings
  • Require a slightly larger up-front investment, but usually cost less to operate
  • Must be vented outdoors for safety
  • Units with sealed combustion or power venting increase safety
  • Not affected by power outages (tank-style only)
Electric Standard Features
Electric Standard Features
1. Temperature & pressure relief valve
2. Energy saving heat traps
3. Corrosion resistant tank lining
4. Energy efficient foam insulation
5. EverKleen™ self-cleaning system
  • Fights sediment build-up
  • Reduces energy costs
  • Extends the life of the tank

Gas Standard Features

Gas Standard Features
1. Temperature & pressure relief valve
2. Porcelain enamel tank lining
3. Rigid foam insulation
4. EverKleen™ self-cleaning system
  • Fights sediment build-up
  • Reduces energy costs
  • Extends the life of the tank

Additional Features
  • Automatically shuts down the water heater if flammable vapors are detected
  • Maintenance-free protection
  • No filters to clean
  • Standard replacement parts
  • Available on most models


Compare the advantages and features of these model types.

Storage Tank Storage Tank
Constantly stores heated water
  • Economical
  • Good for steady, high-use demands
  • Capacity ranges from 20 to 60 gallons
  • Efficiency varies between models, brands and fuel sources
Tankless Tankless
Heats cold water with a gas burner or electric element as it passes through the water heater
  • Larger up-front investment
  • Excellent option for residences occupied part-time
  • Hangs on wall and frees up floor space
  • Provides continuous hot water
  • Reduces energy consumption by as much as 30%
  • Gas heaters may require venting
  • Can be one large unit (whole house) or individual units where hot water is used (point of use)


It's important to select a hot water heater that provides enough hot water for your home. An undersized water heater will work harder and have a shorter lifespan.

Storage Tank

Determine the proper capacity for your household based on the number of bathrooms and bedrooms in your home. If you choose to purchase a unit with a tank, consult the table below for help in determining storage capacity.

Determine Water Heater Capacity
Number of Bathrooms 1 - 1.5 2 - 2.5 3 - 3.5
Number of Bedrooms 1 2 3 2 3 4 5 3 4 5
Minimum Tank Size 20 30 40 50 50 50 60 50 60 60


This unit heats water directly without the use of a storage tank. To determine the size of the tankless water heater you would need, you must calculate how much hot water you need to use at one time. Routine behaviours, such as running the dishwasher while taking a shower, can exhaust a smaller tankless unit. It is best to understand the demands and expectations you have for your tankless water heater before you purchase.


Once you know the capacity for your water heater, remember to take the unit's dimensions into consideration.

  • The unit should have ½" clearance on the sides, 12" on the front and 18" off the floor.
  • For closets and close quarters: A new conventional storage replacement unit may be larger than the old one because more insulation is required to meet the latest strict federal energy standards.
  • When upgrading to a larger unit: You may need to have plumbing run to it if it has to be relocated. One way to avoid relocating the unit is to select a model in a non-standard size, such as a unit that is shorter but larger around, known as a "low boy" hot water heater.
  • When purchasing a tankless water heater: Ensure the location you choose for installation meets the unit's ventilation requirements. Does it require an exterior wall near a gas supply line, water supply line and/or an electrical power source? Placing your tankless heater near the correct supply lines and power sources can be the easiest and most cost-effective way to run the venting.


These models are available in-store, online, or by special order.

Power Vent Direct Vent Conventional Vent Point Of Use
Power Vent
  • Induced draft uses PVC venting
  • Designed for installation flexibility, vent runs up to 100 ft
Direct Vent
  • Uses outside air for combustion requiring no electrical power
  • Adjustable vent allows for installation flexibility
Conventional Vent
  • One of a kind air shut off device
  • Maintenance free, no filter to clean
Point Of Use
  • Features a space saving design for installation in locations with limited space


In addition to manufacturer warranties, The Home Depot offers additional options to suit your maintenance needs.

GE Logo
GE Standard Manufacturer's Warranty Includes:
12 year limited warranty 12 year tank and functional parts
Plus... 1 year in-home warranty
  • Self-cleaning system maintains peak efficiency
  • Gas models feature highest recovery rates
  • Electric models feature stainless steel upper heating element
9 year limited warranty 9 year tank and functional parts
Plus... 1 year in-home warranty
  • Self-cleaning system maintains peak efficiency
6 year limited warranty 6 year tank and functional parts
Plus... 1 year in-home warranty

Installation Services Adspot - Learn More

Energy efficiency

Energy Star Eco Options Whichever fuel source you use, a water heater can be the third largest energy user in your home, so select the system that ensures your needs are met without wasting energy.

Quick Tips

  • Know the measurements of the area where the unit will go to be sure it will fit in that space
  • You may need a venting kit if you're going to install a gas unit
  • Setting your hot water heater to 60°C/140°F is usually hot enough for most needs
  • Flush your water heater at least once per year to remove sediment

Additional Features to Consider

Self Cleaning

  • Automatically fights lime and sediment buildup
  • Lengthens tank life
  • Extends peak efficiency

Recovery Speed

  • Important if you use a lot of hot water
  • The quicker the recovery speed, the less time it takes to heat a full tank of water

Automatic Shutoff Valve

  • For fire-prevention measures
  • Shuts off the flow of gas if there's movement in the ground or the gas flow experiences a sudden, sizeable increase



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