Furnaces are used to heat an area, space or building.
This product is designed to heat the air in the space through the duct.
FEATURES AND BENEFITS:
Modern high efficiency furnaces can be 98% efficient and the small amount of waste gas and heat are mechanically ventilated through PVC pipes.
Fuel efficiency is measured in AFUE (Annual Fuel Utilization Efficiency).
Single stage - on or off - can be noisy, always running full or not at all.
Two stage - full speed or half speed - it can run at a lower speed most of the time, and provide better comfort level for a quieter operation.