The PowerAir Fan is designed to increase the flow of heated or cooled air in branch ducts of a heating and central air conditioning system. It is designed for use in 5 Inch round metal or flexible duct work.The PowerAir Fan can also be used to improve the air flow of a gravity warm air furnace. It can reduce utility bills by eliminating the necessity of constantly adjusting the thermostat or adding portable electric heaters to cold rooms.
