Clean Energy Lives Here Spanish Pledge CTA Button

Benefits of heat pump water heaters

Heat pump water heaters are three times more efficient than conventional electric water heaters and can lower operating costs by 50%.

Lower greenhouse gas emissions

Lower greenhouse gas emissions than heating water with oil, propane, natural gas, or electric resistance

Cost competitive

Save money on utility bills compared to heating water with propane, oil, or electric resistance


Provides dehumidification to the room where the heat pump water heater is located

Smart controls

Wi-Fi controls enable homeowners to remotely control and monitor the water heater

The Technology


Heat is transferred from the surrounding indoor air into a hot water tank. Hot water is then piped throughout the home. When needed, a backup source of heat in the tank will provide supplemental hot water

Heat pump water heaters are ideal for:

New construction | System replacements | Home remodel


Explanation of Heat Pump Water Heater

This Old House | 6 min. 26 sec.

This Old House plumbing and heating contractor Richard Trethewey explains how a heat pump water heater works and the installation process

Featured Customer Story

The Jagodnik Family 

The heat pump water heater paid for itself in less than five years and helped Tony and his family continue their journey towards minimizing household greenhouse gas emissions.

Incentives and Financing

Mass Save®

Instant $750 rebate for residents replacing an existing electric, oil, propane, or natural gas water heater

Federal Tax Credits

Inflation Reduction Act: Federal tax credit of 30% up to $2,000/year.

Federal Rebates

Inflation Reduction Act: Up to $1,600 depending on your household size and income.

Financing Options

Mass Save® HEAT Loan: Up to $25,000 at 0% interest over terms of up to 7 years

Example Cost for a 2,000 FT2 Home

Cost after incentives may be substantially lower if your household qualifies for income-scaled Federal rebates.

Example up-front cost before incentives


Example cost after Massachusetts incentives and Federal Tax Credits:


Municipal Light Plant
If you live in a town served by a Municipal Light Plant (MLP) check your MLP’s website for incentives and rebates.

Things to Consider

If you answer yes to ANY of these questions, then a heat pump water heater is a good fit for your home

Installing a heat pump water heater could save hundreds of dollars a year on your utility bill.

Consider replacing your water heater before it fails or leaks all over the floor. A heat pump water heater can replace your existing water heat, and the installation can be done by a plumber.

Heat pump water heaters need to be located in a minimally warm area with enough open space for air circulation to operate efficiently.

Many HPWH also have Wi-FI integration which enables alerts, service warnings and more active monitoring of the system. Leak protection systems are also increasingly common, automatically shutting off water to, or sealing up areas surrounding, a leak to prevent flooding.

Contact installers to find out how a heat pump water heater could work for you

Questions to ask your installer


No posts found.

View full collection of Resources >>

Consider another low-emissions solution: solar hot water

We’re In This Together

Pledge to reduce your home’s carbon footprint by replacing old systems and appliances with clean energy technologies over time.

Únase a la transformación de la energía limpia

Trabajemos juntos para reducir las emisiones de gases de efecto invernadero de nuestros hogares y para construir un futuro de energía limpia para Massachusetts.

Pásese a la energía limpia