Cabinet circulator solid fuel heater combustion system
AssigneeUnited States Stove Company
InventorsBrandon Lane Barry, Corey Brooks, Dustin Mantooth
Life of this patent
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Abstract
A solid fuel burning cabinet circular heating appliance achieves improved emissions performance by providing a secondary air combustion path that preheats secondary combustion air. The firebox is selectively insulated such that areas of the firebox that do not preheat combustion air retain heat in the firebox while areas of the firebox that transfer heat into the combustion air transfer heat through the firebox into the incoming combustion air. The exhaust air path from the firebox to a chimney is also uninsulated to allow relatively quick heat transfer into a room in which the appliance is installed.
Claims19
A cabinet circulator solid fuel heating appliance comprising:
- a firebox configured to receive solid fuel and combust the solid fuel therein;
- a cabinet surrounding the firebox on at least five sides of the firebox;
- a combustion air intake configured to receive combustion air at a first side of the heating appliance;
- a primary air combustion path configured to receive the combustion air from the combustion air intake and direct primary combustion air toward a front of the heating appliance and across a front of the firebox from a first side of the firebox toward a second side of the firebox opposite the first side of the firebox, through an air damper, and into the firebox at the second side of the firebox opposite the first side of the firebox, wherein the first side of the firebox is closer to the first side of the heating appliance than the second side of the firebox;
- and
- a secondary air combustion path configured to receive the combustion air from the combustion air intake and direct secondary combustion air up the first side of the firebox to the front of the firebox and into the firebox through the front of the firebox.
Dependencies are inferred from the claim text.