Air heaters having heat generating means

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F24Heating devices F24HFLUID HEATERS

F24H3/00Air heaters having heat generating means

F24H3/002using electric energy supply F24H3/004with a closed circuit for a heat transfer liquid F24H3/006using fluid combustibles F24H3/008using solid combustibles F24H3/02with forced circulation F24H3/022using electric energy supply F24H3/025using fluid combustibles F24H3/027using solid combustibles F24H3/04the air being in direct contact with the heating medium F24H3/0405using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact F24H3/0411for domestic or space-heating systems F24H3/0417portable or mobile F24H3/0423hand-held air guns F24H3/0429For vehicles F24H3/0435Structures comprising heat spreading elements in the form of fins F24H3/0441Interfaces between the electrodes of a resistive heating element and the power supply means F24H3/0447Forms of the electrode terminals F24H3/0452Frame constructions F24H3/0458One-piece frames F24H3/0464Two-piece frames F24H3/047Multiple-piece frames assembled on their four or more edges F24H3/0476Means for putting the electric heaters in the frame under strain F24H3/0482Frames with integrated fan F24H3/0488using fluid combustibles F24H3/0494using solid combustibles F24H3/06the air being kept separate from the heating medium F24H3/062using electric energy supply; the heating medium being the resistive element F24H3/065using fluid combustibles F24H3/067using solid combustibles F24H3/08by tubes F24H3/081using electric energy supply F24H3/082The tubes being an electrical isolator containing the heater F24H3/084The tubes being an electrode for the heater F24H3/085The tubes containing an electrically heated intermediate fluid F24H3/087using fluid combustibles F24H3/088using solid combustibles F24H3/10by plates F24H3/102using electric energy supply F24H3/105using fluid combustibles F24H3/107using solid combustibles F24H3/12with additional heating arrangements