日日资源_久久亚洲中文字幕精品一二_韩国三级带日本三级带黄_色婷婷十五图,欧美高清一区二区黑人粗大,亚洲欧美AⅤ在线观看,中国熟妇╳╳╳视频,中文AⅤ视频在线观看,真粗真大好想要视频,久久夜色这里只有精品,亚洲精品爱爱视频

>>Performance characteristics

◆ ON/OFF heater, with automatic ignition.

◆ Propan, Natural gas of Biogas.

◆ Positioned inside of outside the building.

◆ Stainless steel of galvanized chassis.

◆ Distribution fan with fixed flow.

◆ Double gas valve controlled by an electronic circuit card and programmer.

◆ Sparking generator to produce electronic ignition.

◆ Flame sensor by ionization.

◆ Thermal protection by overheating thermostat.

◆ Safety control box to control operation cycle, with a remote reset in case of fault and diagnostic.

>> Technical parameter