Furnace
Natural Gas(NG), Propane(LP), or Electric
During colder months, a furnace heats your home by pulling air across its heating components. From there, the heated air travels through your ductwork and to individual rooms of your home.
Throughout the year - even during warmer months - a furnace circulates conditioned air around your home.
But even beyond that, your air conditioner can’t work without a furnace.