AIR SOURCE HEAT PUMP FAQS & MYTHS
FAQ/Myth
Answer/Response
No. Though high efficiency heat pumps may be configured to work as the sole heating system, they are often used to supplement an existing system. A heat pump may be an excellent replacement for an aging or failing air conditioner connected to a central furnace. It should be determined by a contractor if the AC only can easily be replaced with a heat pump, or if the entire heating and cooling system needs to be replaced to get the benefits of a heat pump. Ductless mini-splits can also augment your existing system, especially if you’re unable to extend ductwork. This will be different for every home. A home’s savings will depend on the current source of heating fuel, age of home, and amount of insulation, among other factors. If you heat with electric resistance, you can see savings of 50% or more. If you don’t heat with electric resistance, your electric bill will go up, but other heating fuel costs will go down. Overall, oil or propane users can see up to 50% net savings on their average yearly heating costs. Homeowners are likely to experience higher energy bills if converting from natural gas to an all-electric system. If you are adding a heat pump to a room or area, you may see your electric bill increase. Heat pumps will typically be sized larger than standard air conditioners for homes that have more heating needs than cooling needs. Heat pump sizing varies by home based on square footage of the home, floorplan, insulation levels, air-tightness, and your existing ductwork. Talk to your contractor to make sure your heat pump is sized according to your heating and cooling needs. If you want to meet both heating and cooling needs, look for a variable speed system. Your contractor should do a heating and cooling load calculation. A bigger heat pump isn’t better for your home and may cause comfort issues. Yes. Many cold climate systems are designed to work efficiently down to -15°F. For a cold climate product list visit ENERGY STAR or ashp.neep.org . Discuss options for models specifically designed to perform in low temperatures with your contractor. For optimal winter performance, units may need additional stands and covers to work in conditions with large snowfall.
Do I need to replace my current heating system if I want to use a heat pump?
How will a heat pump affect my annual heating costs?
What size heat pump do I need?
Do heat pumps work in cold weather?
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ELECTRIC HEAT PUMP CUSTOMER BUYING AND OPERATION GUIDE FOR SINGLE-FAMILY HOMES
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