Will a heat pump increase my electric bill?

If you have resistance style electric heat you will see a dramatic electric bill reduction. If you heat with oil or propane your electric bill will go up, but the savings will exceed the fuel costs you typically pay.

What is defrost mode?

Heat pumps need to defrost when ice forms on your outdoor unit on colder days from condensate in the air. Your unit will automatically switch to cooling mode to do this. Although alarming at first, this is perfectly normal operation.

Do I need to have my heat pump cleaned yearly?

Yes, heat pumps collect a lot of dust and it will build up over time on the indoor and outdoor coils. This buildup can lessen the ability for the unit to operate properly and efficiently.