Wood-burning boiler

Details Wood-burning boiler Wood-burning boiler

2006-10-19

2008-10-21

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

Solid fuel burner

C122S02000R

Reexamination Certificate

active

07438024

ABSTRACT:
A wood-burning boiler is provided, comprising a combustion chamber having a first air intake, and being adapted for holding combustible wood. An exhaust chamber is fluidly coupled to the combustion chamber, and is adapted to receive burnt gases from the combustion chamber. A preheat chamber is included, having a second air intake, and the preheat chamber is fluidly coupled to the combustion chamber and is conductively proximate to the exhaust chamber such that the burnt gases in the exhaust chamber heat the air within the preheat chamber prior to the air in the preheat chamber entering the combustion chamber. The boiler also includes a water jacket conductively proximate the combustion chamber.

REFERENCES:
patent: 4201185 (1980-05-01), Black
patent: 4377153 (1983-03-01), Flagg
patent: 4461242 (1984-07-01), Black
patent: 4700686 (1987-10-01), Woo
patent: 4724798 (1988-02-01), Alspaugh
patent: 5016609 (1991-05-01), Shimek et al.
patent: 5165350 (1992-11-01), Leffel
patent: 2005/0284421 (2005-12-01), Penner et al.
U.S. Appl. No. 60/728,531, filed Oct. 20, 2005, Robert Bast.
Heating with Wood: Principals of Combustion, by Michael Vogel, Montana State University, reprinted Mar. 2003.

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