THE WM97+ WALL MOUNT GAS CONDENSING BOILER is a 155,000 Btu input model that delivers a 97% AFUE rating. Features include a boiler circulator, primary/secondary piping, low water cut off, three zone control, text display, pre-wired terminal clips, and a 5:1 turndown ratio.     
Weil-McLain
CIRCLE 114 on inquiry card