Patent ID: 6145502
Filing Date: 2000-11-14
Classification: F24B

Abstract:
A dual operation vented/unvented gas fireplace, comprising:a fireplace comprising heat exchanger means and a combustion chamber box,said combustion chamber box having five sides and a front side for receiving a glass door,a raised floor in said combustion chamber box forming a combustion air plenum below said raised floor and a chamber for gas combustion above said floor,inlet air means coupled to said combustion air plenum for introducing a source of outside air,gas burner means mounted in the floor of the gas combustion chamber at said floor,gas valve means coupled to said gas burner means for mixing a source of gaseous fuel with air in said combustion air plenum,exhaust opening means in the top of said combustion chamber box forming a passageway for burned hot exhaust gasses into said heat exchanger means,blower means mounted on said heat exchanger means for directing room air to be heated in one of said dual modes of operation,said blower means when activated being active to divert hot exhaust gasses directly into a room area to be heated,said blower means when not activated being passive to permit said hot exhaust gasses to pass through said heat exchanger means to an area outside of said room area, andmeans for activating and deactivating said blower means and for selecting said dual modes of operation.