The furnace of this product is type of water tube penetrating flow, vertical three returns. Burner is on the top location, top burner-burning. Each part of fuel gas continually heat transferring through three returns, decreasing the exhaust gas temperature greatly, reducing the heat loss when preheating boiler at the time of startup and shutdown and to improve thermal efficiency. There are protective device controller, automatic resume contacts with the parts fuction, and dual-exhaust current thermal protection devices, enhancing the security functions. project content Medium Saturated steam Capacity 50 to 300kg/ h Working pressure up to 7bar Max temperature Up to 170 Type of fuel Diesel, Gas