range of tankless water heaters

Efficiency Maine Heat Pump Water Heater Promotion


If you're a Maine homeowner looking to cut water heating costs, Efficiency Maine's instant discount program can help. Heat pump water heaters pull heat from the surrounding air instead of generating it directly, using up to 70% less electricity than a standard electric water heater, so you see real savings on your monthly bill.


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.

*Use A. O. Smith's Qualified Manufacturer (QM) code A5X5 for federal tax return 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's $1,200 rebate applies to qualifying models purchased during three windows:

  • July 31 – August 31, 2026
  • October 1 – 30, 2026
  • March 1 – 31, 2027

You can get this $1,200 rebate one of two ways: by mailing in an application or as an instant discount at a participating Lowe's.

Option 1: Mail-In Rebate

To qualify for the mail-in rebate:

  • You must be a Maine resident.
  • You must use a participating contractor for installation.
  • You must submit your application within six months of purchase.

Your installer can often handle the paperwork for you.

Option 2: Lowe's In-Store Instant Discount

Prefer to skip the paperwork? This same $1,200 is available at participating Lowe's stores as an instant discount, redeemable only in-store:

  1. Visit a participating Lowe's in Maine during one of the windows above.
  2. Scan the QR code posted in-store and fill out the short form.
  3. Look for an email with your personal barcode.
  4. Show that barcode at checkout to get $1,200 off.

Participating Lowe's locations will have point-of-purchase materials to help you find the offer. For full terms, visit Efficiency Maine's in-store instant discount page.

Infographic showing Maine's $1,200 discount and the 2026–2027 redemption windows.

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.

Installation Costs and Savings for Maine Homeowners

Family at kitchen table looking at a laptop

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.


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 who knows both will set things up correctly so you don't run into warranty issues later. 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

Infographic showing how heat pump hot water heaters perform in Maine

Beyond the $1,200 rebate, heat pump water heaters can save Maine homeowners an average of $600 a year, or around $6,000 over a typical 10-year lifespan. Even in Maine's colder months, A. O. Smith's models keep performing well down to 37°F, and backup electric heating elements kick in automatically below that, so you're never without 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.

Rebates & Tax Credits

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

*Use A. O. Smith's Qualified Manufacturer (QM) code A5X5 for federal tax return form 5695.

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

Mail in an application after a contractor installation, or get it as an instant discount at a participating Lowe's by scanning the in-store QR code and using the barcode emailed to you at checkout.


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.