WNS automatic oil-fired steam/hot water boiler is the horizontal triple-pass fire-tube boiler. It mainly consists of 

boiler shell, tank, diversion smoke chamber and fire tubes. This boiler can use light oil, heavy oil, natural gas, liquefied 

gas and urban coal gas as its fuel.

The wet-back corrugated tank can effectively reduce the thermal stress and improve the safety and life of boiler. Heating 

areas are laid symmetrically for reasonable pressure and expansion.

Proper layout of heating surface ensures good water circulation and heat exchange, optimizing the effect of heat transfer and 

increasing the heating efficiency.

Steam boiler integrates the lower-level combustion chamber to expand the range of safe water level and steam space in the 

boiler and to guarantee the good-quality steam.

Full butt-welding wet-back structure can protect the rear wall from damage due to high temperature flue gas to ensure the 

reliable operation of boiler.

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