... series automatic fuel (gas) steam, hot water boiler 1.Oil (gas) fired 2. stable structure 3. Easy operation ... Product Description: WNS series automatic fuel (gas) steam, hot water ... so that the greater range of boiler water level safety, boiler steam space, steam quality ... outlet pressure: 0.7 ~~ 1.6MPa. Hot water boiler: Rated heat power: 0.7 to 14MW, ...