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  • Home > Ways to Save > At Home > Water Heating

    Heat Pump Water Heaters

    Heat Pump Water Heaters

    Would you like to cut your water heating energy costs by up to 60%? Upgrade to a heat pump water heater (HPWH), which is twice as efficient as a standard electric water heater. Heat pump water heaters use electricity to move heat from the air and transfer it, at a higher temperature, into the tank to heat the water. Our Heat Pump Water Heater Program provides rebates and quality assurance to PUD customers who install qualified models.

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    Save Energy & Money

    • A heat pump water heater has a unique control panel that offers more flexibility than a standard electric water heater. You can easily set the temperature and change operation modes to maximize efficiency.  
    • Rather than generating heat directly, the heat pump water heater saves energy by moving heat from the surrounding air into the water in the tank. Supplemental electric heating elements are used only when needed.
    • Dial in efficiency.  Guests staying over? Going on vacation? The control panel on a heat pump water heater allows you to choose the setting that best fits your needs.
    • Shop smart. Retailers often have promotions on heat pump water heaters. Check online for updated promotions before purchasing a new heat pump water heater.

    HPWH Diagram

    Rebate Amounts

    Program Requirements

    • Heat pump water heaters must meet efficiency requirements. Click here for a list of qualified models.
    • Heat pump water heaters may be installed in newly constructed homes, or replace an existing electric storage water heater.

    Things to Consider - All Heat Pump Water Heaters

    • Space - Heat pump water heaters require 1,000 cubic feet of air-flow around them. This is the equivalent of a 10'x10'x10' of space.
    • Sound - Heat pump water heaters generate sounds similar to an electric fan. Consider if this noise can be heard from your bedroom.
    • Cold air - While in operations, heat pump water heaters release cool, dry air into the surrounding space.
    • Size - Heat pump water heaters are slightly larger than standard electric water heaters.
    • Ducting - Some heat pump water heaters will be installed in a location that will require ducting to the outside.

    Things to Consider - Tier 2 Tanks

    • To vent or not to vent? Tier 2 HPWHs can be vented directly to the outside so that they do not cool the air around the water heater. If a Tier 2 tank is not vented, it will require at heat 1,000 cubic feet of air space.  This is roughly equivalent to a 10'x10'x10' room. 

    Step-by-Step Process

    1. Decide on Purchase/Installation - Decide whether to install your new heat pump water heater yourself  or whether to have it installed professionally. A list of all participating installers can be found at hotwatersolutionsnw.org. Hot Water Solutions has a list of tips available here for people planning their own installations.
    2. Install Your Heat Pump Water Heater - Forward a completed Heat Pump Water Heater Participation Form and an invoice to us for review. 
    3. Schedule an Inspection - Upon receipt of your installation documentation, we will schedule an inspection.
    4. Receive Your Rebate - We will process your rebate within three weeks of completing the inspection and receiving all the required paperwork.

    Expert Help Available

    We can answer your questions, and review installation and rebate requirements prior to installation. Contact us at (503) 366-5470 or experts@crpud.org.

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