HI 400HD portable indirect fired air heaters produce clean, dry, healthy heat offering an ideal environment for a variety of construction, residential and restoration applications without the use of an open flame, combustion carbons or water. Available in Diesel or Natural Gas/Propane, the HI 400HD can handle various heating and drying applications at over 85% efficiency due to dedicated 2nd blower for combustion; one of the highest in the industry! Large pneumatic tires mean easy positioning on jobsites. The HI 400HD is CSA approved.
The HI 400HD comes standard with -40 degree F/C cold weather kit and robust design that features lifting bail, fork pockets and adjustable handle.
Diesel model features 2 stage burner with low-fire setting for fuel savings during low heat demand, allowing 30 hours of continuous run time on a single tank of fuel.
Adjustable ball valve on Natural Gas/Propane model allows flexibility to switch from Natural Gas to Propane with ease and includes safety locking device to keep valve from moving once set.
Burner head and gas pipe assembly are made from 100% stainless steel for long life.
Optional 4" burner supply air duct allows warm air from outlet to preheat combustion air for increased cold weather performance and higher efficiency.
Both Diesel and Natural Gas/Propane models are available with your choice of a 1 x 20", 2 x 16" or 3 x 12" supply. A 20" return air adapter is also available to recirculate warm air from your heated structure to the building.
Accessories include thermostat, ductwork, L-vent pipe, L-vent adapter, and rain cap.