Furnace and cold air return systems

Details Furnace and cold air return systems Furnace and cold air return systems

1975-10-02

1977-07-05

Nilson, Robert G.

Stoves and furnaces

Hot-air furnaces

Compressed air

F24H 300, F24H 302

Patent

active

040333205

ABSTRACT:
Improved methods of extracting heat from hot exhaust gases from a heat source adjacent elements of a forced air circulating heating system and apparatus therefor; improvements in methods of completely extracting heat from the combustion gases of a hot air furnace within the furnace plenum and apparatus therefor.

REFERENCES:
patent: 1674337 (1928-06-01), Klees et al.
patent: 2290255 (1942-07-01), Smith
patent: 2504315 (1950-04-01), Feuerfile
patent: 2523412 (1950-09-01), Bauer
patent: 2603208 (1952-07-01), Beauchamp
patent: 3695345 (1972-10-01), Moreland

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