Questions to ask about a heat pump
- How was the recommended capacity determined?
- What efficiency ratings apply to the matched indoor and outdoor system?
- How will auxiliary or backup heat operate in colder weather?
- Does the proposal include needed duct, electrical, drainage, thermostat, permit, and commissioning work?
Normal defrost or a problem?
An outdoor heat-pump unit may periodically enter a defrost cycle in heating mode. Persistent icing, poor indoor comfort, unusual noises, or frequent reliance on auxiliary heat deserves professional evaluation.
Independent information
The U.S. Department of Energy provides a homeowner overview of heat-pump systems and efficiency considerations. Use it to prepare questions, then ask a qualified professional to evaluate your home.