Woodkiln molded combustion chamber

Abstract

The molded combustion chamber described herein is an improvement on prior art with a number of significant advantages. A single molded piece replaces many fabricated pieces of board and brick with uniformity of material and lower cost. It can be used by itself as a replacement for a grate in a wood/gas fireplace or as the key element of a metal or masonry fabricated fireplace. It can be molded up to 3″ in thickness, so that the focus can be on insulation and reflection rather than surface durability. The spherical baffle serves as a secondary combustion area, so that all flames are visible and significantly more heat is radiated into the living space. This design is more efficient and less costly than most EPA certified wood heaters with a secondary combustion chamber or catalytic converter. This design will also help a gas appliance meet the DOE efficiency goal. The absence of a grate and the insulating quality of the material used enable a very small coal bed to ignite new fuel. This is user friendly and facilitates the loading of a single large (all-nighter) log for a slow burn. The top of the chamber is flat for heating water and food. This design could be used in a large fireplace and would be particularly useful in underdeveloped parts of the world where there is no other means of cooking than a fire.

1 - 10 . (canceled) 
     
     
         11 . A combustion chamber of a single molded shape. 
     
     
         12 . A combustion chamber in accordance with  claim 11  having a bottom surface and a rear surface with the bottom surface sloping to the rear surface and the rear surface extending vertically from the bottom surface. 
     
     
         13 . A combustion chamber in accordance with  claim 11  having a spherical top that slopes from just above the bottom surface to the full height at the front center of the combustion chamber. 
     
     
         14 . A combustion chamber in accordance with  claim 11  and further comprising a gas burner within said combustion chamber. 
     
     
         15 . A combustion chamber in accordance with  claim 11  and further comprising a metal liner tray on the bottom surface. 
     
     
         16 . A combustion chamber in accordance with  claim 11  made of light weight insulating refractory material. 
     
     
         17 . A combustion chamber in accordance with  claim 11  and further comprising a small coal bed on the bottom surface supporting a single large log. 
     
     
         18 . A combustion chamber in accordance with  claim 11  having a top formed with a recess focusing the hot gas out the middle so that it can be used for cooking.