Heat exchanger for condensing furnace

Details Heat exchanger for condensing furnace Heat exchanger for condensing furnace

1987-02-06

1988-04-19

Yeung, James C.

Heat exchange

With coated, roughened or polished surface

165170, 1651341, 126110R, 138145, F28F 1318

Patent

active

047383070

ABSTRACT:
A gas-fired condensing furnace with a corrosion resistant condensing heat exchanger. The condensing heat exchanger is formed from a flat sheet of engineering metal with a layer of polypropylene sheet material laminated thereto. Each condensing heat exchanger has a condensing flow passage of serpentine shape formed in the laminated flat sheet of engineering metal such that the polypropylene layer will be exposed to the flue gas/condensate environment to provide corrosion resistance to the metal.

REFERENCES:
patent: 1622376 (1927-03-01), Davenport
patent: 3734178 (1973-05-01), Soudron
patent: 4421789 (1983-12-01), Kanedo et al.
patent: 4427034 (1984-01-01), Nagata et al.
patent: 4461347 (1984-07-01), Layton et al.
patent: 4467780 (1984-08-01), Ripka

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