Liquid heaters and vaporizers – Fluid and solid fuel
Patent
1981-04-08
1983-07-19
Favors, Edward G.
Liquid heaters and vaporizers
Fluid and solid fuel
122 2, 122211, F22B 3104
Patent
active
043938140
ABSTRACT:
An improved multi-fueled hot water or steam boiler comprising a plurality of compartments, one compartment for the combustion of a solid fuel, such as wood or coal, and the other for the combustion of a liquid fuel and separated from each other and the exterior of the boiler by water-conducting walls; a water supply tank positioned above one of the compartments and connected to the water-conductive walls; and a plurality of horizontal fire tubes passing through the water supply tank and connecting one compartment to an exhaust flue. The compartment not positioned below the water supply tank has a water-conductive ceiling slanted upwardly toward and connected to the water supply tank. One compartment has an adjustable air-flow secondary damper in addition to a primary air damper. The water-conductive walls, fire tubes, adjustable secondary damper, and upwardly slanting water-conductive ceiling reduce boiler heat losses and improve boiler efficiency.
REFERENCES:
patent: 851183 (1907-04-01), Shoemaker
patent: 1154877 (1915-09-01), Moore
patent: 1456707 (1923-05-01), Nystrum
patent: 4206723 (1980-01-01), Kunkel
patent: 4296711 (1981-10-01), Bilberg
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