Efficiency can be as much as 2.5 times higher than an electric resistance alternative
Cools surrounding space in the summer, making the area more comfortable
Uses waste heat from the central furnace during winter months
May qualify for $300 Federal Tax Credit in 2016
Can save $330 annually for a family of four, depending on water use and electricity rates |
Cost about twice as much as electric resistance water heaters
The compressor will make a noticeable noise. Insulating the mechanical room can reduce the sound, but doing so reduces the amount of warm air for the unit's use
Makes the heating system work harder during winter months because it generates cold air while operating
Physical size of a HPWH can be greater than a electric resistance alternative
Requires additional space for air flow (1,000 cubic feet) and a condensation drain or pump
Slow recovery may be a problem when demand for water is high
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