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. Industry leading for heat delivery in its class, boasting 900,000 Btu/hr and up to 6,450 cubic feet per minute, the HI900DGM also features a static pressure gauge, helping maximize heat delivery and avoid output air restrictions. The HI900DGM features a liquid-cooled 7kW Kubota generator for off-grid use as well as a durable stainless steel heat exchanger that comes standard with a 3 year warranty. The unique Recircul-Air design allows adjustable recirculation of warm inside air, while pressurizing with fresh air, resulting in fuel savings and even temperatures. Trailers come fully equipped with choice of surge or electric brakes