Ultra Series 3-UE delivers peace of mind, unmatched comfort and immediate payback in energy savings.

Models

UG-80, UG-105, UG-155, UG-230, UG-299, UG-399

Key Features

• 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 capability

• 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