Heat pumps are air conditioners that can go in reverse. They don't just warm your house efficiently; they can cool it, too.

But in order for your heat pump to work, you'll have to rely on electricity. "Essentially, heat pumps are an air conditioner ...

There are more model, feature choices today, and financial incentives for changing your water heater and home heating-air ...

"Essentially, heat pumps are an air conditioner component which has additional parts and controls that allow it to run in reverse," says Baca. "During cooling operation it operates like any other ...