G234X and G334X Atmospheric Gas Boiler

The G234X and G334X construction consists of flexible GL-180M cast iron, designed to resist thermal shock for long life and a high silicone cast iron surface for excellent corrosion resistance. They each have staggered contoured fins for optimum heat transfer and efficient operation, high precision castings with steel push nipples, sectional construction, and deluxe, heavy gauge blue enameled jacket for a clean finished appearance. There is a full 3" of thermal insulation for minimal standby heat loss coupled with an integral draft diverter for low profile. All models are easily converted to propane, and they also offer low emissions with Premixed Burner Technology.

  • Up To 84.8% AFUE Efficiency
  • Easily Converts to LP
  • Atmospheric Chimney Vent
  • Electronic Ignition
  • Quick Electrical Disconnect for Easy Wiring
  • Flexible, Corrosion Resistant GL-180M Cast Iron
  • Low emissions with Premixed Burner Technology
MODELInput MBtuHOutput MBtuHAFUEDimensions
Water Content
G234x-38160.0 130.0 84.3 40.75x25.6x25.5 6.10 487
G234X-45187.0 154.0 84.1 40.75x25.6x25.5 6.10 487
G234X-55228.0 188.0 84.8 40.75x29.1x25.5 7.10 562
G234X-64266.0 219.0 84.3 40.75x32.75x25.5 8.20 684
G334X-73301.0 249.0 82.7 40.75x34.75x25.5 9.20 758
G334X-92378.0 314.0 83.1 40.75x41.75x25.5 11.40 930
G334X-116476.0 369.0 83.2 40.75x48.75x25.5 13.50 1093
G334X-132542.0 451.0 83.2 40.75x56x25.5 15.60 1265

Warranty Information

  • Heat Exchanger - Limited Lifetime Warranty on Caste Aluminum Heat Exchanger in Residential Settings
  • All Parts for 12 months -

Available Documents