Forced air condensing furnace and heat exchanger manifold theref

Details Forced air condensing furnace and heat exchanger manifold theref Forced air condensing furnace and heat exchanger manifold theref

1995-10-30

1998-07-07

Jones, Larry

Stoves and furnaces

Hot-air furnaces

Compressed air

126119, 126116R, 126 99R, F24H 302

Patent

active

057753180

ABSTRACT:
A heat exchanger manifold (44) is provided which includes a plurality of manifold inlet openings (58) including sealant means such as grommet means (62) which receive the tube outlets (40c) of the condensing section (34) of a heat exchanger (28). The heat exchanger manifold (44) is made of a corrosion-resistant material such as a polymer such as one sold under the trademark LEXAN.TM. and the grommets (62) are preferably made of a resilient, corrosionresistant polymer such as rubber, e.g., a nitrile rubber. The condensing tubes (38a, 38b, 38c) are slanted to facilitate drainage of the condensate into the heat exchanger manifold (44) and a flue gas outlet (64) and a condensate drain (49) are provided to discharge, respectively, flue gas and condensate from the heat exchanger manifold (44). The condensing tubes (38a, 38b, 38c) are connected to the primary heating section (30) of the heat exchanger (28) through swaged joints (37).

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