WNS type automatic industrial energy conservation gas boiler which is fast-loading internal combustion three pass gas fired tube boiler. Use set side boiler barrel and wet back structure .High temperature wash the second return and third return smoke tube in turn.Then from back smoke room ,pass through chimney to discharge into air.With advanced burner,adopt combustion automatic proportion adjustment.feed water automatic adjustment,program start and stop.

<a href="2 ton gas fired heating boiler
">Natural gas heating boiler</a> feature :
1. The boiler body is shell boiler ,three pass wet back ,fire tube structure ,the flame is burning in the big furnace  with Micro-positive pressure burning ,so it can burn out enough . Low hot capacity for furnace ,so hazardous substance such as SOX, NOX is less .
 
2 wave form boiler furnace and spirally corrugated smoke pipe greatly improve heat  transform efficiency . meanwhile it also satisfy with each part expansion 
 
3 big water volume ,and steam space ,large range of regulation.Inside boiler device guarantee quality of steam.
 
4 adopt new  heat insulation thermal insulation material  reduce heat loss
 
5 water level alarm adopt stainless as electrode stick, as heat insulation material ,insert at the top , not easy to pollutant ,have long service life.
6 front smoke box and back smoke box with hinge connection ,it is easy to open to inspect
7 oxygen control system which can monitor the oxygen  content  in the smoke gas ,meanwhile transfer the data to the control system ,through computer's analyses to adjust combustion matching. This gas heating boiler can improve burning efficiency ,reduce fuel consumption
Biogas steam boiler manufacturers
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