Patent ID: 8053709
Filing Date: 2011-11-08
Classification: F21L,F21V

Abstract:
1. An apparatus comprising: a portable heating or lighting unit, a lithium ion battery; a housing; a rectifier or inverter; an electrical device adapted to use electrical energy from said lithium ion battery, wherein said electrical device comprises a resistive heating element; a control system comprising control hardware and embedded software, said control system being adapted to automatically control the resistive heating element; a regulator adapted to receive fuel from an associated fluid fuel source; an air inlet in the housing adapted to admit air into the housing; a burner region in fluid communication with the regulator and in fluid communication with the air inlet, said burner region being adapted to produce thermal energy by combustion of an air and fuel mixture; a thermoelectric element adapted to convert at least some of said thermal energy to produce electrical energy, said thermoelectric element comprising a BiTe alloy; and a system adapted to sense levels of carbon monoxide or other indoor air pollution in the local vicinity of the heater, said system being adapted to stop the combustion of the air and fuel mixture at some level of said carbon monoxide or other indoor air pollution.