Boiler for use with charges of wood fuel

Liquid heaters and vaporizers – Fire tube – Vertical

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Details

122123, 122 20B, 122421, 237 56, 126112, F22B 902

Patent

active

043899803

ABSTRACT:
A boiler has a chamber to contain a charge of wood that rests on the bottom of the chamber with the major portion of the charge within a water jacketed upper portion of the chamber but free to settle as combustion progresses. Combustion is confined to the bottom portion of the chamber due to the cooling effect of the water jacket and to a turbulent cross draft in the combustion zone. A special venturi section in the flue coupled with a pressure blower both induces the flow of hot gases from the combustion zone through a second chamber and a heat exchanger and also provides a stream of air from the venturi section to create the cross draft. An oil burner may be used in conjunction with the second chamber as an alternate heat source. The boiler also has a special base construction and assembly features.

REFERENCES:
patent: 1553652 (1925-09-01), Vrba
patent: 1700411 (1929-01-01), King
patent: 1859745 (1932-05-01), Morley
patent: 2222893 (1940-11-01), Allemann
patent: 2561461 (1951-06-01), Coleman, Jr.
patent: 2578927 (1951-12-01), Esson
patent: 4292933 (1981-10-01), Meier et al.
patent: 4309965 (1982-01-01), Hill

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