www.pmmag.com/articles/86522-efficient-water-heater-a-o-smith

Efficient Water Heater - A.O. Smith

January 1, 2003


The new A.O. Smith Cyclone XHER BTH-400 is the first commercial gas water heater to achieve 99 percent thermal efficiency. When manifolded together, four Cyclone units provide 540 gallons of total hot water storage and 1.6 million Btu input, to serve the needs of high-demand applications.

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