Heater is made up of air heat exchanger and axial flow fan, the wind wind deflector and other structures. Fan out air through heat exchanger, heat exchange with air heat exchanger, can make the temperature of the air  raise or lower, again through the outlet wind deflector or other send the air supply outlet, trimming ambient air temperature, to achieve the purpose of heating (or cooling). Can be widely used in industrial and mining enterprises of the production workshop and large buildings. According to the need to install on the side or installed on the ceiling.