Gas-fired condensing mode furnace

Details Gas-fired condensing mode furnace Gas-fired condensing mode furnace

F - Mech Eng,Light,Heat,Weapons

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F24H 3/08 (2006.01) F24D 19/10 (2006.01) F24H 3/06 (2006.01) F24H 8/00 (2006.01)

Patent

CA 1230025

GAS-FIRED CONDENSING MODE FURNACE ABSTRACT OF THE DISCLOSURE A gas-fired, condensing mode, hot air furnace has an exhaust passage for carrying the products of combustion from a gas burner to an exhaust flue. A heat exchanger is provided in the exhaust passage for extracting heat from the products of combustion. An air passage is provided for carrying a flow of air over the heat exchanger and a blower causes a flow of air through the air passage. The gas burner is enclosed and fires into the heat exchanger. A fresh air duct communicates with the burner enclo- sure for admitting fresh air thereto. A condenser is provided in the exhaust passage for removing water from the products of combustion, the condenser being exposed to the air passage. A second blower is provided in the exhaust passage for causing fluid flow therein from the fresh air inlet duct through the enclosure and the exhaust passage to the exhaust flue. -1-

464099

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