Weil-McLain adds a new WM97+ wall-mount gas condensing boiler, a 155,000 Btu input model with a 97% AFUE rating. The WM97+ is easy to install and operate, saving time and money with built in features that include a boiler circulator, primary/secondary piping, low-water cutoff, three-zone control, text display, prewired terminal strips, 5-to-1 turndown ratio capability. It offers flexibility with its multiple venting options and simple gas conversions, and has a durable, stainless-steel fire-tube heat exchanger with a corrosion-resistant condensate collector base.www.weil-mclain.com/en/our-products/boilers/gas-boilers/gas-boiler-wm97.aspx