In extremely cold climates, is an additional heat source necessary?
All heating systems should have an emergency back-up in extremely cold climates. EarthLinked heat pumps can provide all of the heat necessary, even in the coldest weather. They operate efficiently from Miami to Montreal, and Australia to Estonia. An economic analysis by your contractor should determine what portion of the heat should be provided by the heat pump and what portion by auxiliary means. It is sometimes best to rely on supplemental heat on the few coldest days and thus reduce the capacity and installation cost of the heat pump.
