Lochinvar® Solution™ CBN090 Heating Boiler, Natural Fuel, 65 MBtu/hr Net IBR, 90 MBtu/hr Input, Automatic Vent, Intermittent Electronic Ignition

  • AFUE Rating: 0.84
  • Amperage Rating: 2 A
  • Dimensions: 21-1/2 in L x 15-1/2 in W x 29-1/2 in H
  • DOE Heating Capacity: 75 MBtu/hr
  • Ignition Type: Intermittent Electronic
  • Input Capacity: 90 MBtu/hr
  • Manufacturer Name: A. O. Smith
  • Net IBR Rating: 65 MBtu/hr
  • Vent Type: Automatic
  • Voltage Rating: 24 VAC
  • Features and More


  • ASME copper finned tube heat exchanger
  • Gasketless heat exchanger design, built-in performance loop
  • Self diagnostic ignition control, terminal strip
  • Two stage solid state temperature control, outdoor reset with outdoor sensor
  • Domestic hot water prioritization, two stage gas valve w/ built in manual shut-off
  • 160 psi working pressure, pump relay, automatic reset high limit, ASME pressure relief valve
  • Temperature and pressure gauge, automatic vent dampe, built-in draft diverter
  • Stainless steel burners, loch-heat ceramic tile combustion chamber


  • CSA Certified
  • ASME Certified
  • H
  • IBR Standard