C-faced heating pump
Camping lantern and cooking stove set
Centrifugal heating unit
Chemical bag warmer
Chemical heater
Chemical heating pad with differing air-admitting perforation se
Chemical reactant bottle and method of use thereof
Chemically heated blanket
Chemically heated blanket
Chemically heated blanket
Closed system solar heater
Closed vaporization heat transfer system
Collecting solar energy
Combination heat absorber and heat storage system
Combination solar collector and heat exchanger
Combination solar heat collector and awning
Combined device for producing and exchanging heat with a heat co
Combined flat plate - focal point solar heat collector
Combined heating dish and storage container for food
Combined solar energy conversion and structural and mechanical b