A. O. Smith has announced the addition of X3 Scale Prevention Technology to its full line of residential condensing gas tankless water heaters. X3 Technology prevents scale buildup in a tankless unit, eliminating the need for routine descaling maintenance, tripling the expected lifetime of a unit and enabling it to run at like-new performance and efficiency. X3 Technology means users never have to descale a tankless water heater again – alleviating maintenance time for contractors and reducing ownership costs for homeowners. Units featuring X3 Technology work especially well in homes with hard water where damaging scale and mineral deposits are more common. The units use up to 199,000 BTU/hr of natural gas to deliver a continuous supply of hot water to residential applications.

A. O. Smith Corp. 

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