百得BTG天燃气燃烧机型号燃烧器功率KWBTG656BTG1199BTG15160BTG20205BTG28280GAS35350TBG45450TBG45P450TBG60P600TBG85P850TBG120P1200TBG150P1500TBG210P2100BGN250P2500BGN300P2982BGN350P3500BGN5405900BGN3903950GI100010850GI7007000)