In this series product divides the plate type, bushing, condensing three categories.Bushing with plate type appearance and shape of the same size1, the common characteristic: Fan according to gas into the air during operation, automatically adjust the wind speed, maximum limit reduces heat loss., the use of switching power supply control method, can be in 170-260 - v voltage, frequency, change the larger environment under normal use.Control, control device adopts anti-interference design, distance can reach more than 50 meters.The patent for utility model design, high power models more compact volume.Appearance design patent, metallic paint, easy to clean;Three sets of shell structure type, easy disassembly, installation and after-sales service is convenient.