Plate steel single burn rate wood heater with improved emissions
AssigneeUnited States Stove Company
InventorBrandon Lane Barry
Life of this patent
Estimating the term…
Abstract
A single burn rate woodstove provides primary combustion air and secondary combustion air to a combustion chamber of the woodstove. The woodstove includes a primary air inlet, a primary air outlet into the combustion chamber, and a secondary air outlet into the combustion chamber. Some embodiments of the inventions include secondary air inlet(s) for the secondary combustion air separate from the primary air inlet. Some embodiments of the invention include the same firebox sizes as known in the prior art while providing such inexpensive single burn rate woodstoves with improved emissions performance by using both primary and secondary combustion air.
Claims19
A single burn rate woodstove comprising:
- a primary air inlet through a front of a main body of the woodstove at a top of the main body of the woodstove;
- a secondary air inlet through the main body of the woodstove;
- a secondary air channel configured to receive secondary air from the secondary air inlet and conduct the secondary air to a secondary air orifice at a top and a front of a combustion chamber of the woodstove;
- a primary air channel configured to transfer primary combustion air from the primary air inlet to below the secondary air orifice for introduction into the combustion chamber at the front of the combustion chamber;
- a top baffle defining a top of the combustion chamber of the woodstove, wherein a front of the top baffle is higher than a rear of the top baffle;
- and
- a secondary air manifold configured to receive the secondary air from the secondary air channel and direct the secondary air from the secondary air channel into the combustion chamber of the woodstove, wherein the secondary air manifold extends horizontally across the combustion chamber of the woodstove, said secondary air manifold having a plurality of secondary air orifices therein, and wherein the secondary air orifice is one of the plurality of secondary air orifices, wherein:
- the secondary air manifold is at the front of the top baffle;
- and
- the secondary air manifold is directly under the top baffle.
A single burn rate woodstove comprising:
- a combustion air inlet through a door of the woodstove;
- a combustion air manifold configured to receive combustion air from the combustion air inlet and provide primary and secondary combustion air to a combustion chamber of the woodstove, wherein:
- the combustion air manifold is attached to the door at a back of the door;
- a primary combustion air outlet is formed at a bottom of the combustion air manifold such that the primary combustion air outlet provides primary combustion air to the combustion chamber from the combustion air manifold;
- and
- a secondary combustion air outlet is formed at a top of the combustion air manifold such that the secondary combustion air outlet provides secondary combustion air to the combustion chamber from the combustion air manifold;
- and
- a window in the door, wherein a bottom edge of the combustion air manifold ends at a top edge of the window such that the primary combustion air reduces soot buildup on the window.
A single burn rate woodstove comprising:
- a combustion air inlet through a door of the woodstove;
- a combustion air manifold configured to receive combustion air from the combustion air inlet and provide primary and secondary combustion air to a combustion chamber of the woodstove, wherein:
- the combustion air manifold is attached to the door at a back of the door;
- a primary combustion air outlet is formed at a bottom of the combustion air manifold such that the primary combustion air outlet provides primary combustion air to the combustion chamber from the combustion air manifold;
- a secondary combustion air outlet is formed at a top of the combustion air manifold such that the secondary combustion air outlet provides secondary combustion air to the combustion chamber from the combustion air manifold;
- and
- the combustion air inlet comprises a row of primary air inlets and a row of secondary air inlets, wherein the secondary air inlets are above the primary air inlets, and the secondary air inlets are smaller than the primary air inlets.
Dependencies are inferred from the claim text.