Heat pumps need supplemental heat. This can come from either a fuel-based furnace or an electric heater. There are two main reasons for this.

1. Because the same system is used for both heating and cooling, the heat pump is limited by the smaller of the two needs - the cooling one. On the coldest days of winter, the heating capacity of the heat pump may not be sufficient.

2. Cold outdoor temperature can also lower the heating capacity of the heat pump to the point where it has to be turned off and backup heat needs to be brought in.

Supplemental heat is not as a big a deal as it sounds. A couple of electric strips can be easily accommodated by the ductwork at a cost of a few hundred dollars. On the other hand, it may spare you buying a new furnace at $3,000.

And last, but not least - you can finally get rid of fuel heat inside of your house. People and fuels don't really mix well in the same space.

Company Resource:    Household Heat Pump, Swimming Pool Heat Pump
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