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Heat Pump Water Heaters

heat pump water heaterTens of thousands of Mainers own heat pump water heaters. They’re popular because they produce lots of hot water, help dehumidify, and can save more than $500 per year in electricity.* 

priced As Low AS $429NO-COST LOW INCOME WATER HEATER

Heat pump water heaters work like air conditioners, but rather than moving heat from the room to the outdoors, they move heat from the room into the water tank.

Heat pump water heaters are sometimes called “hybrids” because in addition to a heat pump, they have traditional electric resistance heating elements for times when demand exceeds what the heat pump can produce.

Financial Example

 Traditional Electric
Water Heater
Heat Pump
Water Heater
Warranty/Capacity6-year/40-gallon10-year/50-gallon
List Price$449$1,399
Incentive$0$950
Net Price$449$449
Electricity Cost*$858/year$232/year
Electricity Savings$626/year

Benefits

  1. They produce lots of hot water.
  2. They can save more than $5,000 over the life of the unit compared to traditional electric water heaters.*
  3. They typically have 10+ year warranties.
  4. They help dehumidify.

Click here to estimate your own savings

*Compared to a traditional electric water heater as shown on Efficiency Maine’s Compare Water Heating Costs calculator as of 1/20/2023. Your results may differ.

Take Action

  1. If your electric water heater is more than ten years old, replace it now while incentives are available. Don’t wait for it to break.
  2. Use our online tool to find a participating installer who can help you determine if a heat pump water heater is right for you.

Things to Consider

  1. Because of their noise and cooling effect, heat pump water heaters are better suited to basements than living spaces, especially if there is extra heat available from a boiler.
  2. They complement but do not replace dehumidifiers because they operate based on hot water demand instead of humidity levels.
  3. Condensate from the heat pump water heater must be plumbed to a sink or drain.
  4. For optimum efficiency, install units in 10’ x 10’ or larger rooms with temperatures above 35°F.
  5. Recommended clearances from walls and ceilings should be followed to ensure adequate air circulation and access.
  6. Insulate the first few feet of incoming and outgoing pipe to minimize heat loss.
  7. Air filters must be rinsed regularly.

Click the links below to learn more:

Mail-in rebate claim form

List of best prices in Maine

User tips guide

Maine plumber testimonials

Myths and Facts sheet

Myths and Facts video

Water Heating

  • Heat Pump Water Heater Incentives
  • Find an Installer
  • Heat Pump Water Heater Info
  • Compare Water Heating Costs
  • Best Heat Pump Water Heater Prices
  • Low Income Water Heaters

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