Ultra Series 4 High Efficiency Condensing Boiler

Standard Equipment
• Cast aluminum coated heat exchanger
• Up to 94% DOE AFUE efficiency
• Designed to operate in low temperature condensing applications
• Outdoor reset and domestic hot water priority
• Modulates with 5:1 turn-down ratio
• High grade stainless steel burner features quiet operation
• U-Control gives you the power for easy set-up and maintenance

Warranty
• Residential
• Heat Exchanger—12 Years
• All other parts—2 Years
• Commercial
• Heat Exchanger—10 Years
• All other parts—1 Years

Resources
• Brochure
• Submittal Sheet
• User Manual