The object) aimed at in the improvements, is to obtain as much caloric as possible from the furnace ... air passes, and by fixing outside the same air chambers or drums, through which the hot ...

The blower motor pushes hot air from the heat exchanger through the home's ductwork. Cool air in the home is cycled back to the furnace through the air return duct. Repairing a gas valve costs ...

or by producing an extremely hot surface that ignites the gas as it passes. Blower fan: A small electric fan and motor that directs warm air from the furnace to various parts of the home according ...