A More Comfortable Indoor Climate

Nobody likes temperature swings or cool air blowing in their face. That's why the more stages a furnace runs on, the better temperature balance and air filtration you have. Single-stage furnaces create temperature swings of up to 4 degrees and blow cool air into your living spaces at the start and end of the cycle. Two-stage furnaces run at the low stage most of the time, producing lesser temperature swings of one to two degrees. Variable-capacity furnaces run at the lowest capacity necessary to maintain balanced temperatures in your home and are the quietest furnaces.