Heat pump water heater systems typically have higher initial costs than conventional storage water heaters. However, they have lower operating costs, which can offset their higher purchase and installation prices.
Before buying a heat pump water heating system, you also need to consider the following:
Size and first hour rating
Fuel type and availability
Energy efficiency (energy factor)
If you're considering installing an integrated water heating, space heating, and cooling heat pump system in your home, also see our information about air-source heat pumps and geothermal heat pumps.