A. O. Smith Adapt+ Premium condensing tankless

A. O. Smith Canada publishes the Adapt+ as its premium condensing tankless line, supplied with X3 scale-prevention technology and an integrated recirculation pump. The manufacturer states 0.95 UEF and ENERGY STAR certification for the line, a 15-year limited warranty on the heat exchanger and a 5-year limited warranty on all parts in residential applications, and a 1-year limited warranty on the heat exchanger and parts in commercial applications.

A. O. Smith Canada states the patented X3 scale-prevention technology helps the units maintain like-new performance longer while eliminating the need for annual descaling, and that the line is field convertible from natural gas to propane with the conversion kit included with the unit. Those are the manufacturer's published statements; this site records them as published and does not present them as independent test results, and the maintenance requirements of a specific model are confirmed from that model's own manual.

The line is documented here at family level because the per-model inputs, flows at temperature rise and Canadian availability sit in the linked Canadian specification sheet, installation manual and service manual. Whether CANRO supplies a given Adapt+ model for a project is confirmed at consultation, and CANRO names A. O. Smith among the brands it services on its own pages.