The high efficiency Alta and Alta Combi boilers feature next-generation gas adaptive technology that provides the shortest installation time and lowest operating costs, the company says. The boiler’s control system provides continuous, automatic self-calibration of burner combustion by adapting to component wear, variations in fuel, environment, and vent air pressure. Heat-only boilers are available in 120, 150 and 180 MBH models, and combi-boilers are available at 136 and 200 MBH. The Alta also includes sensor-less reset technology, which performs the functions of conventional outdoor reset without the need to install an outdoor sensor.

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