Lochinvar’s ARMOR commercial water heaters use stainless-steel heat exchanger technology with modulating/condensing combustion for superior energy efficiency. Designed to be installed with a separate storage tank, the ARMOR design protects against the harmful effects of lime-scale buildup. The line, manufactured at Lochinvar’s world headquarters and manufacturing facility in Lebanon, Tenn., consists of floor-mounted models that range from 150,000 Btu/hr., to 800,000 Btu/hr.; wall-mounted units with inputs of 125,000 Btu/hr., and 199,999 Btu/hr.; and the ARMOR X2 models with inputs of 1.0, 1.3 and 1.5 million Btu/hr.