-Direct fired heaters -Stainless steel combustion chamber -Exterior body shell in double steel panels -Very high air supply temperature -Integrated automatic fuel burner with high pressure pump -High air flow output axial fan -Power supply in 230 V single phase -Integrated fuel tank for a long autonomy -Designed for outdoor use even in the rain or snow -Overheating thermostat -Inspection hatch allowing easy access to burners and electrical equipment -Multiple configurations of air supply conveyors -Kit for connection with an external fuel tank ( optional ) Mobile warm air heaters with fuel burner