Ultra Gas S3 CT Gas Boiler offers 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