... capacity, combustion performance is upstanding, the boiler adops ,,,,,,grare, self-governed wind warehouse.and crown of stove designed reasonably.3, ... of water circulation make the the circulation safe and reliable.5,the boiler has a high degree of automation, has ... change of pressure.7,the boiler runs steadily and reliably. It is convenient mainentance .8,the boiler adops newfashioned heat insulator ...