Preheating unit by using Xiapu gas is introduced, the key point that welding casing can be preheated without getting into furnace has been achieved.

With cold starting devices, such as inlet pre-heater, optional fuel heater and coolant heater, the unit has solved the difficult starting problem under low temperature and high altitude areas.

Adjusting to freezing region working condition, can be equipped with silicon oil fan, intake pre-heater and fuel oil pre-heater.