3 Navien heat pump water heaters ranked. Each one is scored and ranked against every brand in its size, so "#3 mid-size" means third of all mid-size heat pump water heaters here, not third among Navien's own.
Navien makes 3 current heat pump water heaters: 1 40–50 gallon, 1 65 gallon and 1 80 gallon. Its best-rated model in each size: the Navien NWP500 50 Gal (#12 of 23 40–50 gallon, rated 3.4), the Navien NWP500 65 Gal (#5 of 16 65 gallon, rated 3.7) and the Navien NWP500 80 Gal (#13 of 16 80 gallon, rated 3.5). Sizes run from 50 to 80 gallons.
Navien’s stainless-tank hybrid, sold through plumbers, with a 10-year warranty that includes a year of labor. Its heat pump stops below 41 °F room air, so it suits a basement more than a cold garage.
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Navien’s stainless-tank hybrid, sold through plumbers, with a 10-year warranty that includes a year of labor. Its heat pump stops below 41 °F room air, so it suits a basement more than a cold garage.
Navien’s stainless-tank hybrid, sold through plumbers, with a 10-year warranty that includes a year of labor. Its heat pump stops below 41 °F room air, so it suits a basement more than a cold garage.
Navien’s stainless-tank hybrid, sold through plumbers, with a 10-year warranty that includes a year of labor. Its heat pump stops below 41 °F room air, so it suits a basement more than a cold garage.
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