A heat pump water heater is one of the most energy-efficient upgrades you can make for your home. It uses electricity to move heat from the surrounding air into your water instead of creating heat like a traditional water heater. That means lower energy use, lower utility costs, and cleaner indoor air.
Sonoma Clean Power offers a $2,500 rebate for qualifying heat pump water heater installations, helping make the switch more affordable.
Save energy and money with a heat pump water heater that uses up to 70% less electricity than standard electric models. Plus, qualifying systems may be eligible for rebates to help reduce installation costs.
Improve your indoor air quality by switching from a natural gas water heater. Heat pump water heaters don't burn fuel or produce combustion gases inside your home.
Enjoy reliable hot water with energy-efficient technology designed to meet your household's daily needs. Multiple operating modes help balance performance and efficiency.
Instead of creating heat, a heat pump water heater captures warmth from the surrounding air and transfers it into the water stored in the tank. Because moving heat requires much less energy than generating it, heat pump water heaters are significantly more efficient than conventional models.
$8,317
Sonoma County
$7,227
Mendocino County
*Averages are based on Sonoma Clean Power rebate project records. Your actual cost may vary. SCP recommends getting multiple quotes from qualified installers before making a decision.
Heat pump water heaters can qualify for available incentives to reduce the project costs. Sonoma Clean Power currently offers a $2,500 rebate for installing a qualifying system. Visit our heat pump water heater rebate page to learn more!
A heat pump water heater may be a good fit if you:
A qualified contractor can help determine the best size and model for your home.
How does a heat pump water heater work?
A heat pump water heater works by pulling heat from the air around it and moves that heat to the water in the tank, like how a refrigerator moves heat, just in the opposite direction. A fan draws in air, the system extracts its warmth, and that warmth heats the water through refrigerant lines. This cycle repeats until the water reaches the set temperature. See the graphic at the top of the page for a diagram on this process![AH1]
What’s the difference between a hybrid and a heat pump water heater?
A hybrid water heater is a type of heat pump water heater that also has backup gas or electric heating. When you need a lot of hot water quickly, the backup kicks in to heat the water faster. Not all heat pump water heaters have this feature which is why “hybrid” models are labeled separately.
Why should I switch my water heater to a heat pump?
Heat pump water heaters are the most efficient way to heat water in your home. They use less energy and they don’t produce any harmful pollutants, a bonus for your home’s air quality.
Are heat pump water heaters reliable?
Yes, this technology has been around for over thirty years!
Heat pump models have a similar lifespan to standard electric water heaters, and with proper care and regular maintenance, the useful life of the water heater can be extended. Plus, they commonly come with 10-year warranties.
Will my household have enough hot water?
When switching to a heat pump water heater it’s recommended that you install a tank that is about 10 gallons larger than your current one. Since heat pump water heaters move heat instead of creating it, they can take a bit longer to heat the water than other water heater types, so a bigger tank helps you have enough hot water ready.
What is a thermostatic mixing valve and do I need one?
A thermostatic mixing valve is an optional add-on that mixes hot water from the tank with cold water. With a mixing valve you can set the water heaters’ temperature higher, which increases how much hot water you can store. You don’t need one, but it can be a useful upgrade.
Are there available incentives for installing a heat pump water heater?
Yes! Sonoma Clean Power currently offers a $2,500 rebate for installing a qualifying system. Visit our heat pump water heating rebate page, or check out The Switch Is On website for the latest incentives available in your area.
Do I need to change my PG&E rate if I install a heat pump water heater?
While you don’t need to change your rate, EV2A or E-ELECT may be more beneficial and help you optimize your water heater. To learn more about rates contact us at info@sonomacleanpower.org or at 1 (855) 202-2139.
Do I need a professional to install it for me?
You can do it yourself, but using a qualified installer is recommended. Professional installation helps to ensure the work passes local inspections and that the system runs safely and efficiently. You may also need to use a qualified installer to be eligible for incentive programs.
Where can the water heater be installed?
Heat pump water heaters need about 700 cubic feet of open space around it to circulate the air properly. Basements, garages and vented closets are the most common locations for installing these systems. Different makes and models will have their own guidelines which can be discussed with your installer.
What happens to my hot water during a power outage?
The hot water in the tank will remain available until it runs out. When power comes back on, the water heater automatically returns to its previous settings. If your home has a backup battery, the water heater can keep running in heat-pump-only mode, which uses less power.
How loud are heat pump water heaters?
The average noise level is between 45 to 55 decibels, which is roughly the same as a dishwasher. How loud the system is can vary depending on where it’s installed and the surrounding area. It’s recommended to discuss this with your contractor if noise is a concern.
Should I get a bigger tank when I upgrade?
Yes, it’s recommended to size up by at least 10 gallons. However, more detailed information should be discussed with your contractor.
[AH1]Would be great if we could hyper link to the graphic here
Will I have enough hot water?
Yes. Most households have plenty of hot water with a properly sized system. Your installer may recommend a slightly larger tank than your existing water heater to ensure you have enough hot water during periods of high demand.
Are heat pump water heaters noisy?
Most models operate between 45 and 55 decibels, which is about as loud as a dishwasher. Installation location can affect how noticeable the sound is.
Where can a heat pump water heater be installed?
Heat pump water heaters are commonly installed in garages, basements, or utility rooms where there is enough space for airflow. Your contractor will confirm that your installation location meets the manufacturer's requirements.
Do I need a professional installer?
Professional installation is recommended to ensure the system operates safely, meets local building codes, and qualifies for available rebates.
What happens during a power outage?
The hot water already stored in the tank remains available until it is used. When power is restored, the water heater automatically resumes normal operation.
Are rebates available?
Yes. Sonoma Clean Power currently offers a $2,500 rebate for qualifying heat pump water heater installations. Additional local, state, or federal incentives may also be available.
ENERGY STAR has detailed guidance on heat pump water heaters, including sizing charts and installation best practices. Visit energystar.gov to explore their resources.
