Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China automatic electrical air heater manufacturers and suppliers,Website:://.qzys-exhaustfan.com, welcome to wholesale low price automatic electrical air heater from our factory.FEATURES1.automatic control, stable hot air, quick temperature rise, high heat efficiency.2.Special isolation device and overheating protection device, between inside heating element and outside frame.3.No consume of oxygen, no smoke, no odour, no moisture, low noise.4.Unique entire thermal insulation design, decrease thermal loss lowest and keep combustion efficiency as high as 99%.5.Temperature is adjustable in rated range.6.Artificial intelligent panel, convenient operation.TECHNICAL PARAMETERModelpowerHeat efficiency power Air flow temperatureVoltageHeating areadimensionKcal/h(≥%)(KW)(m³/h)(℃)(V)(㎡)(mm)YSEF-30250009932870060-120380/220300-6001100*1100*1800YSEF-504000099521400060-120380/220600-8001400*1100*1800YSEF-806500099831740060-120380/220800-10001600*1100*1800YSEF-120100000991232000060-120380/2201000-12001800*1200*2200Note: No special notice to the specification change.