range of tankless water heaters

Efficiency Maine Heat Pump Water Heater Promotion


If you're a Maine homeowner looking to cut your water heating costs, Efficiency Maine's rebate program can help. Heat pump water heaters pull heat from the air around them and move it to your water tank. They use 60% less energy than standard electric water heaters, leading to savings on your monthly bills.


Visit the water heater rebates center to see what incentives and energy-efficient models are available.

Water Heater Selector Quiz

Use our water heater selector to find the correct water heater for your home.


ACT NOW - Federal Tax Incentive ends 12/31/2025

*When filing a federal tax return, include A. O. Smith's Qualified Manufacturer Code A5X5 on tax form 5695.

Need Help From A Pro?

A. O. Smith water heaters are professionally installed by local independent contractors.

How Maine's Heat Pump Water Heater Rebate Works

Efficiency Maine wants to help more homeowners switch to heat pump water heaters. The state offers rebates to make these units more affordable for Maine families.

Who Qualifies and How to Apply

Family at kitchen table looking at a laptop

Want to know about Maine's rebate program? Here are the requirements:


  • Must be a Maine resident.
  • Need to use a participating contractor for installation.
  • Submit your application within six months of purchase.
  • Your installer can often handle the paperwork for you.


Your Rebate Amount: What Maine Offers

Infographic discussing Maine's heat pump water heater rebates and federal tax credits

You can get thousands back when you buy a heat pump water heater:


  • $1,050 mail-in rebate from Efficiency Maine.
  • Up to $2,000 federal tax credit (ending December 31, 2025).
  • Combined savings of over $3,000 on your heat pump water heater.
  • Use manufacturer code A5X5 when filing your federal tax paperwork.


Maine isn't the only state with heat pump water heater incentives.

Tennessee residents can access TVA's rebate program, while Maryland homeowners served by BGE, PEPCO, or Delmarva can get similar rebates on qualifying units.

Energy star heat pump hot water heater

Approved Models That Qualify for Rebates

ENERGY STAR®-certified heat pump water heaters with high-efficiency ratings qualify for the full rebate. Many newer models include helpful features like Wi-Fi controls, leak alerts, and systems that let you know if something needs attention.

Rebates & Tax Credits

Rebate and incentive programs provide savings to consumers for the purchase of water heaters that meet certain energy efficiency standards.

Need Help From A Pro?

A. O. Smith water heaters are professionally installed by local independent contractors.

Installation Costs and Savings for Maine Homeowners

Heat pump water heaters pay for themselves over time through lower energy bills. With Maine's rebates and federal tax credits, you can cut the initial cost by thousands of dollars.


Infographic showing how heat pump hot water heaters perform in Maine

Finding the Right Installer Near You

Look for a contractor who understands these units need room to breathe (at least 1,000 cubic sqft. of space) and a way to drain the water they create. A good installer knows how to set everything up correctly to protect your warranty. Have your heat pump water heater ready to install? Connect with a qualified local contractor.


What You'll Really Save with Heat Pump Water Heaters

They can save you over $6,000 over their ten-year life. Even in Maine's colder weather, these units work well down to 37°F. When temperatures drop, backup heating kicks in, so you always have hot water.


Keeping Your Heat Pump Running in Maine's Climate

These units last 12-15 years on average. Clean the filter regularly and have a professional check it once a year. Newer models can tell you when something needs attention before it breaks.

Need Help From A Pro?

A. O. Smith water heaters are professionally installed by local independent contractors.

Why Choose A. O. Smith for Your Heat Pump Water Heater

AO Smith installer shaking hands

When you're ready to get a heat pump water heater, A. O. Smith has made reliable water heaters since 1939. Our ProLine® XE Voltex® series builds on A.O. Smith's long history in water heating with advanced heat pump technology.


With our water heater selector tool, you can easily pick the right model. Then, find a trusted local plumber near you for installation.

Frequently Asked Questions

Heat pumps are worth it in Maine because they cut monthly electric bills and keep working even when it's freezing outside.

Heat pumps last around 12-15 years if you keep up with changing filters and getting annual checkups.