Alta offers high efficiency, high performance and high value. Available in both heat-only and combi (heat and domestic hot water) models, Alta can save you money in winter heating bills and all year long with tankless hot water on demand. Featuring next-generation combustion technology, Alta’s control system continuously monitors every aspect of its operation, making adjustments that optimize efficiency, comfort, and reliability.


The Alpine is a proven and versatile high efficiency boiler. Installed in tens of thousands of homes nationwide, the Alpine is equipped with many advanced features which match performance and fuel use to heating demand. Using an outdoor sensor, Alpine adjusts its firing rate based on the temperature outside the home, providing comfort and efficiency. It also continuously monitors system parameters, ensuring years of reliable operation. Alpine is the peak of performance.


For homes with gas steam heat, Independence is an efficient and reliable solution. Available for homes with and without chimneys, Independence features a cast iron heat exchanger, thick insulation plates, seamless corners in the burner base, and an insulated steel jacket. Every BTU is precious, these features keep heat where it belongs – in the heating system.

Sage Zone Control

Makes a condensing boiler actually condense


• Exclusive HeatMatch™ software calculates zone demand, and automatically adjusts maximum firing rates starting at low fire


• Reduces short cycling: Extends life of heating system components

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