Combustion apparatus for solid fuel
OwnerStephen Charles Browninventor
Life of this patent
Estimating the term…
Abstract
A combustion apparatus for the burning of solid fuel using a plurality of secondary combustion zones is disclosed. The combustion apparatus includes primary and secondary air inlets, an inclined hearth and a unique second air source which washes up a window in the combustion apparatus creating a floating flame effect and rendering the window self-cleaning. A series of baffles define a secondary combustion pathway which optimizes secondary combustion of exhaust gasses and particulate matter. Coaxial rear and top direct venting apparatus are also disclosed. The combustion apparatus provided combusts a wide range of solid fuel at a high level of efficiency.
Claims41
A combustion apparatus for combusting solid fuel, the apparatus comprising:
- a firebox defined by a base, a top wall, a front wall, a rear wall and two side walls extending between said base and said top wall, said front wall comprising a window and an opening to enable loading of said solid fuel into said firebox;
- a plurality of baffles disposed within said firebox and substantially spanning between said side walls and between said front wall and said rear wall, wherein at least one baffle of said plurality of baffles is disposed between a primary combustion zone and a secondary combustion zone, and wherein said secondary combustion zone is disposed between said primary combustion zone and said window;
- a primary air inlet for delivering primary combustion air into said primary combustion zone and a secondary air inlet for delivering secondary combustion air into said secondary combustion zone;
- wherein
- said secondary air inlet is adapted such that an air flow delivered therethrough is directed upwards adjacent to said window;
- and
- said baffles are dimensioned to direct combustible products from said primary combustion zone towards said front wall, such that said combustible products mix with air from said secondary air inlet within said secondary combustion zone.
A method of combusting fuel comprising the steps of:
- providing a stove comprising a firebox a base, a top wall, a front wall, a rear wall, two side walls extending between said base and said top wall, said front wall comprising a window and an opening to enable loading of solid fuel into said firebox, and at least one baffle disposed within the stove between a primary combustion zone and a secondary combustion zone, wherein said secondary combustion zone is disposed between said primary combustion zone and said window;
- introducing primary air into the stove;
- igniting said fuel in said stove thereby initiating primary combustion in the primary combustion zone;
- introducing secondary air from at least one additional source disposed below said window into the secondary combustion zone within said stove;
- removing exhaust from said primary combustion zone via a secondary combustion pathway adapted to support ongoing combustion in said secondary combustion zone,
- wherein said secondary combustion zone is separated from said primary combustion zone by the at least one baffle and is located between said primary combustion zone and said window and is produced by way of said secondary air being directed upwards from below said window to:
- wash up said window, cause a secondary combustion to occur adjacent said window, and cause a resulting flame from said secondary combustion to appear to float above a base of said window;
- introducing secondary air at a plurality of additional sources along said secondary combustion pathway thereby supporting said ongoing combustion at a plurality of successive secondary combustion zones;
- such that the temperature of said secondary combustion is higher at each successive said secondary combustion zone.
Dependencies are inferred from the claim text.