div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: CERTIFIED Approx Ship Wt lbs 290 300 340 355 …AP-490U AP-590U AP690U AP-790U Burner Capacity DOE Heating Capacity MBH 116 129 159 AHRI Net Ratings MBH 103 114 139 Wa src=https:reader034fdocumentsusreader034viewer20220423225f0cdd547e708231d437830dhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv