Air heater with expansion containing electric heater...

Cogeneration system and control therefor with auxiliary heating

Control apparatus and method for electric heater with external h

Cross-direction dryer for a machine producing sheet material...

Electric boost heater for deep fryer

Electric cooking oven with infrared gas broiler

Electric thermal storage boosted heat pump air heating apparatus

Heater part, especially for a vehicle water or air heater...

Heating method and assembly utilizing electric heating elements

Hybrid hot air heater

Hybrid hot air heater

Hybrid hotair heater

Hybrid hotair heater

Hybrid water heater with electrical heating unit and combustor

Method and apparatus for transporting commodities, especially li

Method and assembly for converting a mobile gas range to combina

Method and device for providing a gaseous substance mixture

Method of modifying masonry furnace by inserting electric heatin

Portable hot-air blower

Recreational vehicle water heater having centrally controlled ga