Lochinvar enhances its Knight wall-mount fire-tube boiler with ranges from 55,000 to 399,999 Btu/h. Some select models provide up to 10:1 turndown, top and bottom water connections and an upgraded SMART SYSTEM control. The WHN56-286 boiler provides 95% AFUE, while the WHN400 is rated 94.4% thermal efficiency. The latest version of the SMART SYSTEM control is standard on all WHN wall-mount, fire-tube models and has a larger multicolor graphic LCD display.

Lochinvar. www.lochinvar.com