• MGB Series II

    MGB Series II

  • MGC Series

    MGC Series

MGB Series II/MGC Series

MGB Series II/MGC Series

The MGB Series II/MGC Series is available in nine sizes from 50 MBH to 299 MBH and is designed for chimney-vent applications. With efficiencies up to 83.9% AFUE, the latest design features a Hydrolevel FuelSmart control that monitors water temperature and delays burner start until residual heat has been transferred to the system for maximum efficiency. An integral Draft Hood and Automatic Vent Damper reduces the overall height and footprint of the boiler making it ideal for low clearance/space limited installations.


  • Efficiency: Mid-Efficiency
  • Heat Exchanger: Cast Iron Heat Exchanger
  • Combustion: Atmospheric
  • Venting: Chimney Vent
  • Boiler Type: Hot Water
  • Available in 9 sizes from 50 MBH to 299 MBH.
  • Dependable Cast Iron Heat Exchanger with Cast Iron Push Nipples. The Sections and Push Nipples expand at the same rate when heated. By using similar materials instead of less expensive gaskets the boiler maintains a water tight seal over time.
  • Hydrolevel FuelSmart Control
  • With durable protective cover and viewing window.
  • Digital temperature display and diagnostics.
  • Plug in connection for the vent damper.
  • Plug in connection for the system pump.
  • Control monitors water temperature and delays burner start until residual heat has been transferred to the system for maximum efficiency.
  • Atmospheric Chimney Vent Boiler with Integral Draft Hood and Automatic Vent Damper.
  • Stainless Steel Main Gas Burners (MGB)/Titanium Composite Burners (MGC), Combination 24 Volt Gas Control (Includes: Automatic Gas Valve, Gas Pressure Regulator, Automatic Pilot,Safety Shutoff, Pilot Flow Adjustment, Pilot Filter), Intermittent Pilot Control, Continuous Retry, Combination Pilot Burner/Electrode/Flame Sensor.
  • Spill Switch and Roll-Out Switch for safety (MGB)/Flame Roll-Out Safety Shut-Off (Fuse Link)(MGC).
  • Texture Painted Jacket.
  • Limited Lifetime Warranty (Residential Applications).


  • Natural Gas or Propane.
  • Central Heating Pump(Taco, Grundfos, B&G or Less Pump)
  • LP Conversion Kit
  • Combustible Floor Plate
  • Fill-Trol.

Documents / Resources

Current Documents
Archived Documents


User Manual

Installation & Operation Manual

Parts Lists


Service Bulletin

Product Bulletin


Engineering Documents / Resources

Product Testimonials

  • It appears to be of the latest technology and efficient. Very quiet compared to my previous boiler.

    Hartford, CT
  • Very reliable, always innovative

    Warren, MI
  • I've heard good things about Utica Boilers and the plumber highly recommended the brand. Looking forward to saving money with my new gas boiler!

    Holtsville, NY
  • The dependability, design, ease of installation and overall satisfaction. Also the energy efficiency of this unit.

    Philip P Garlo, Phil's Heating & Air Conditioning
    Westerly, RI
  • We install your products whenever we can. You have been our go to brand for sometime now. The product is engineered and built very well. Controls are simple, the units are packed down nice yet offer room to work on em if need be.

    Thomas J Bradly, Installing Contractor
    Woodbury, NJ
  • Compact and fairly efficient. Easy to understand is what we wanted. Our old boiler was 60 yrs old and needed replacement and wanted to have a larger boiler to add heating to addition and boiler handled it very well. Made in the USA... 

    Agawam, MA