Ultra Gas S3 CT Gas Boiler

  • Default


  • Revit Files Available!


Image 1of 2
  • Default
  • Revit Files Available!
Product Type:

gas-fired residential

Ultra Gas S3 CT Gas Boiler
Where to Buy
Contact us today to obtain a contractor or distributor in your area.

Boiler Intelligence for Every Heating Need

  • Optimal Efficiency for Multiple Temperatures
  • Quick System Presets to Match any Application
  • Seamless Multiple Boiler Control
  • Gas fired water boiler with cast aluminum heat exchanger
  • Venturi mixing body mixes air and gas providing higher efficiency
  • Designed to operate in low temperature condensing applications
  • Outdoor reset and domestic hot water priority standard
  • Negative regulated gas valve precisely delivers gas to the boiler
  • U-Control gives you the power for easy set-up and maintenance
  • Modulates with 5 to 1 turn-down ratio
  • Variable speed motor matches combustion output to heating needs
  • High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications
Model A.G.A. Input (MBH)DOE Heating Capacity (MBH)Net I=B=R Ratings (MBH)Min. Vent SizeAnnual Fuel Utilization Efficiency (AFUE)
UG-808071622 or 3 in. PVC/CPVC93.5%
UG-10510594812 or 3 in. PVC/CPVC94.0%
UG-1551551391233 in. PVC/CPVC94.0%
UG-2302302071833 or 4 in. PVC/CPVC94.1%
UG-2992992702344 in. PVC/CPVC92.5%
UG-399399365*3174 in. PVC/CPVC91.7%*

*Combustion Efficiency

Sentinel X100 Water Treatment included with boiler
Click here for more information on Sentinel products