• 230 to 462 New BTUs (5 sizes)
  • Chimney vented
  • Integrated boiler control
    – User-friendly
    – Energy-saving “thermal purge” feature circulates residual warm water in heating system prior to firing boiler
    – Combination high limit circulator relay
    – Extensively tested & proven
  • Horizontal firetube heat exchanger, 1/4” and 5/16”
    boiler-plate steel
    – Meets the ASME Boiler and Pressure Vessel Code
  • Wet leg design
    – Provides more heat transfer surface for increased heating efficiency
  • Available with Dual Coils (FR350 through FR462)
    – Provides increased domestic hot water capacity