A. O. Smith expands its offering of tankless water heaters with the introduction of 180,000 Btu condensing models available in natural gas or propane, as well as indoor and outdoor configurations. The new units are Energy Star-qualified and come with a 12-year limited warranty. The new models offer continuous flow rates of up to 8 gpm and a .91 Energy Factor.

A. O. Smith Water Products. www.hotwater.com. Circle 27