Patent ID: 9188334
Filing Date: 2015-11-17
Classification: F23C,F23N,F23Q,F24H

Abstract:
1. A dual fuel heater comprising: a flow control valve; a burner; a burner pilot system having a first fuel oxygen depletion system including a first thermocouple and a first pilot nozzle, said burner pilot system also having a second fuel oxygen depletion system including a second thermocouple and a second pilot nozzle, and a fuel selector valve, said fuel selector valve being positionable between a first position allowing the passage of a first fuel through said fuel selector valve to said burner and to said first pilot nozzle and a second position allowing the passage of a second fuel through said fuel selector valve to said burner but preventing the passage of the second fuel through said fuel selector valve to either said first pilot nozzle or said second pilot nozzle.