... , air capacity for each fan: 10500m3/h.Exhaust air system is optional.Heating system BT18 diesel burner, stainless steel heat exchanger, electric ... galvanized. 2 ramps, external setting, 2000×750mm(L×W), surface is painted.Room BodyBack side with 50mm EPS wall panels, the ... fan for exhaust air, model YDW-4.5S, air capacity is 15500 m3/h, with manual damper for exhaust air.Heating ...