Patent ID: 6884065
Filing Date: 2005-04-26
Classification: F24C

Abstract:
1. A portable gas-fired infrared heater comprising: (a) a housing enclosing a burner assembly including a gas valve adapted to receive fuel from an associated fuel supply and communicating with an orifice, the orifice being located to direct fuel to a venturi for mixing with air which, in turn, communicates with a rear face of a radiant surface where combustion occurs, the housing further including an air inlet for communicating air to the venturi; (b) said housing at least partially enclosing at least one fuel source; and (c) an oxygen depletion monitoring means inside the housing of said heater having a thermocouple which monitors the temperature of a flame operatively associated with the burner assembly for automatically shutting off the burner assembly at a predetermined content of at least one gas selected from the group consisting of oxygen, carbon dioxide and carbon monoxide.