B.F. Mahn & Sons Inc. - We are your local comfort experts!

Product Lines | Stay Comfy with High Efficiency Comfort Systems

Staying comfortable year round isn't hard when your heating and cooling systems are properly sized and installed. Call B.F. Mahn today to schedule your installation!

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26 Total Reviews /files//bf_mahn-logo.png636-586-2300$112 W Clement St., De Soto MO



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Service & Repair Contact Us

CGi Series 3 85% Gas Boiler

High efficiency with cast iron quality and sidewall of chimney venting.

  • Gas fired water boiler with cast iron sections
  • Natural draft and direct exhaust capability
  • Can be used with natural or propane gas
  • Compact design saves valuable living space
  • Intermittent electronic ignition with standard components for easy servicing
  • Integrated electronic control with diagnostic lights
  • High-grade stainless steel burners
MODELInput MBtuHOutput MBtuHAFUEDimensions
HxWxD		Water Content
Gal.		Weight
Lbs.
CGi-2550.0 42.0 84.0 28.3x23.25x10 1.50 200
CGi-3 60.0 61.0 85.1 28.3x23.25x10 1.50 200
CGi-490.0 76.0 85.0 28.3x23.25x13 2.10 245
CGi-5119.0 100.0 83.3 28.3x23.25x16 2.70 290
CGi-6167.0 140.0 83.8 28.3x23.25x19 3.30 335
CGi-7200.0 167.0 83.0 28.3x23.25x22 3.80 390
CGi-8233.0 194.0 82.7 28.3x23.25x25 4.40 420

Warranty Information

  • All Parts for 24 months -
  • Heat Exchanger for 240 months -

Available Documents


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