A. O. Smith launches its new line of XP boilers and XP automatic circulating water heaters for large-volume commercial applications. XP models offer high outputs ranging from 920,000 to 3.4 million Btu/hr., with state-of-the-art, stainless-steel heat-exchanger technology. They can achieve thermal efficiencies of up to 99 percent when used in low-temperature applications. In addition, XP models have top-of-the-line control features with a touchscreen user interface. The control operates each of the burners as a separate boiler; it is able to send error messages about problems with one burner while activating another. www.hotwater.com.