Following the overwhelming success of the TD500 GSE Cabin Heater, Therm Dynamics has introduced the TD500 IDF. This portable standalone heater is designed to preheat engines and thaw frozen hydraulics or doors. As an added bonus, we designed the IDF to function as a portable maintenance station with High Spot Heat and a 6.0KW generator to run tools and lights. This heater will meet all your operational needs in the most extreme and demanding conditions.