Patent ID: RE40590

Claim:
A method of making a universal gas combustion chamber for use in a plurality of different prefabricated gas fireplace units, comprising the steps of: mixing refractory ceramic fibers (RCFs) with a solution of inorganic binder to form a thick paste slurry, molding said thick paste slurry into an open box shape fireplace having a plurality of panels comprising a floor panel, at least two side panels and a top panel, removing said open box fireplace from its mold, firing said panels to form a non-porous impact resistant open box of panels of a gas fireplace combustion chamber, assembling stack means, trim means, burner means and said plurality of panels into the gas fireplace combustion chamber to provide said different gas fireplace units, and sealing the joints between said stack means and said trim means, to form unique fireplace units having a reinforced non-porous gas tight gas combustion chamber.