Is a Heat Pump the Best Choice?
Since a heat pump can both heat and cool a house, wouldn't you always rather buy a heat pump than a central air conditioner? And wouldn't you rather have a single piece of equipment to purchase, install and maintain than both a central air conditioner and a furnace? While the answer may be this simple, you should consider several factors.
The seasonal weather in your region is probably the most important factor in this decision. If the temperature rarely dips below 40 degrees Fahrenheit, you can probably heat your home more affordably with a heat pump than a furnace. However, if the temperature is often colder, you should consider having a backup heat source. Many people choose a gas or oil furnace to serve this purpose -- both for reasons of cost and because a furnace can more easily maintain warm temperatures when the difference between the temperature outside and inside increases.