| 摘要 |
FIELD: electrical engineering, controlled electric equipment, provision for maintenance of specified heat condition in various production, living and official premises, in bath-houses and saunas. SUBSTANCE: electric heating band is wound on framework and ensures heating of air coming through adjustable clearance. Electric heater is equipped with unit controlling heat conditions and time modes and unit for emergency cut-off. EFFECT: improved heating efficiency and temperature control. 8 cl, 5 dwg
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