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Where Can I Install a Heat Pump Water Heater?

Heat pump water heaters can be installed in a variety of both heated and unheated "buffer" locations. An unheated "buffer" location is a room that does not have its own heat source but is next to a room that does. Some examples include:

  • Garages
  • Basements
  • Utility rooms

Take Advantage of an Existing Location

  • Many heat pump water heaters can be installed in the same spot as the current standard electric water heaters.
  • Take advantage of existing connections, such as cold water supply, hot water outlet, electrical connection, temperature/pressure relief valve, and drain.

Things to Consider

  • Space - Heat pump water heaters typically require at least 1,000 cubic feet of air-flow around them, this is equivalent to 10’x10’x10’ of space. Air-flow requirements vary by product, and some units can be installed in much less space if you employ ducting or other air-flow strategies.
  • Sound - Heat pump water heaters generate sounds similar to a microwave vent fan when the heat pump is operating.
  • Cool air - While in operation, heat pump water heaters release cool, dry air into the surrounding space
  • Size/height - Heat pump water heaters are slightly larger than standard electric water heaters

Installation Tips

  • Ensure the unit is level
  • Drain condensate via a sloped drainage system or a condensate pump, or connect to plumbing drain; avoid creating a slip hazard over walkways
  • Below-freezing temperatures may affect condensation drainage
  • Avoid installing the unit near bedrooms or living rooms, or consider installing noise-dampening features in the space if noise is a concern
  • Install the unit to the manufacturer’s specifications and local plumbing, electrical and building codes; obtain the required licenses and permits, and verify local jurisdiction requirements.
  • Use pipe insulation to help maintain water temperature in unconditioned spaces
  • Refer to the manufacturer’s specifications for information on available mode settings to maximize efficiency and homeowner satisfaction

Download our do-it-yourself installation tips if you plan to install your new heat pump water heater yourself.

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What are Tiers?

Energy efficiency levels and features of heat pump water heaters vary by product tier. Higher tier products have greater efficiency and the more advanced product features.

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