Duct heater Features: 

 A. Electric heating tubes around the outside corrugated stainless steel band, increasing the cooling area, greatly improving the efficiency of heat exchange; 

 Two. Rational design of the heater, wind resistance, uniform heating, no high and low temperature dead ends; 

 3. Dual protection, good safety performance. Installed on the heater thermostat, fuses can be used to control the duct air temperature over-temperature, no wind, case work to ensure foolproof.