• Efficiency:  Recognized as the Most Efficient of ENERGY STAR® 2019
  • Combustion: Sealed Combustion
  • Venting: Direct Vent
  • Boiler Type: Hot Water
  • Wall Mounted: Bracket included
  • Boiler Control Module: Automatic Low Voltage/Intermittent Direct Spark Ignition/Modulating with a 5:1 combustion turn down ratio. For multiple boiler applications – the control module can stage up to 16 boilers
  • User Display interface: Easy programming with text display. Outdoor Temperature Sensor included
  • Patented Heat Exchanger (Patent No. 10,012,413): High grade 316L/444 Stainless Steel Fin Coil with Flame Sight Glass
  • Combustion: Gas Valve with Premix Venturi and Blower, Durable Stainless Steel Mesh Modulating Burner with 5:1 turn down ratio, Direct Spark Igniter, Flame Sensor
  • Electrical: Low Voltage Terminal Strip, High Voltage Junction Box and Transformer
  • Other: 30 PSI Safety Relief Valve, Boiler Drain Valve and Condensate Drain with built in trap

  • Concentric Vent Kit (2″ and 3″)
  • System Sensor (For Multiple Boiler Applications)
  • Optional Floor Stand
  • LP Conversion Kit