High Efficiency Gas Fired, Stainless Steel, Condensing Water Boiler
  • Reliable, proven stainless steel heat exchanger
  • Factory pre-set Sage 2.2™ Control System, providing out-of-the-box  high performance control capabilities
  • Touch screen diagnostic display with plain-language guidance
  • Exclusive features for installer convenience and homeowner dependability
  • High altitude – zero or minimal de-ratings, reduce the costs of oversizing, field adjustable
  • FREE 5-year parts warranty included
Contractors told us exactly what they wanted
K2 Boiler - Open View
A value-priced, high efficiency condensing boiler that is simple enough to install quickly AND offers valuable extras not found on competitive models. U.S. Boiler Company has delivered. The K2 offers a comprehensive feature list, unequalled ease of setup, maintenance, and operation in a package that costs far less than you’d expect for the impressive value that’s built in. And best of all, it’s built and tested with pride in Lancaster, Pennsylvania by U.S. Boiler Company.