... further, it will cold.Parameter of far infrared carbon heater:Type:Heating typeCharacteristic:heating,waterproof,insulation,friendly-environment ... 700-2000(W)Frequency:50HZMaterial of motor:Carbon fiberFeatures of far infrared carbon heater: 1.Good oil resistance, ... .5.nice economical and durable Application of far infrared carbon heater:Suitable for housing, villas, workshops, restaurants, office ...