The furnace of this product is type of water tube penetrating flow,vertical three return.Burner is on the top location,top burner-burning.Each part of fuel gas continuly 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.

1.Quickly startup,achieving high temperature and pressure in short time.

2.Nature circle,be able to endure different temperature.

4.The stucture design is perfect and excellent,covering small installing area.