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Priority claimed from DEL25261Aexternal-prioritypatent/DE1093514B/de
Priority claimed from DEL26391Aexternal-prioritypatent/DE1234949B/de
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Publication of FR1604102ApublicationCriticalpatent/FR1604102A/fr
F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
F24H3/00—Air heaters
F24H3/02—Air heaters with forced circulation
F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between