Patent ID: 7735482
Filing Date: 2010-06-15
Classification: F24B

Abstract:
1. A combustion chamber with a triple acting damper that provides clean burning, user friendly and economical control of a combustion process comprising, combustion chamber incorporating a flue collar, a door and a baffle, a damper blade hinged at the top of the combustion chamber constructed and arranged to rest in an open position if left to gravity alone, air ducts extending to the front of the combustion chamber above the door into the rear of the flue collar, an air intake in the top of the combustion chamber above the damper blade, a damper control constructed and arranged to engage the damper blade to selectively move into a closed position and restrict the products of combustion, restrict combustion air and add dilution air to the flue collar resulting in a relatively low negative pressure in the combustion chamber, the damper control comprising a bimetallic element that causes the damper blade to be more open when cold to encourage combustion and more closed when hot to discourage combustion.