WNS three pass 1- 20 Ton/H gas boiler China

WNS series gas fired boiler is three pass design, wet back structure, we supply 1 ton - 20 ton gas fired steam boiler and gas fired hot water boiler for our beloved customers.
The type gas boiler for sale is welcomed in the market for its reasonable design, high efficiency, energy saving, easily maintain, and environment protection.
1. Reasonable design.
The horizontal internal combustion, three pass, all wet back structure design , fire tubes are surrounded by the water tubes reasonable structure make the gas fire tube boiler have enough heating surface.
2 .High efficiency and energy saving
The heat efficiency of this series all are between 90%-92%. It has bigger furnace.
3. Standard and safe
In the processing of manufacturing of the boilers, all procedures are finished according to the standard of country and international standard.
4. Maintain easily.
It have smoke header doors both in the front and the bask of the boiler, the back observing fire hole and checking hole can enter in to check and clean. It have manhole, head hole, hand hole make it easy to maintain.
5. In line with the environmental standards.
The big burning chamber and the high quality burners makes the fuel will be totally burned.