Weil-McLain

Ultra S4 Gas Boiler

Ultra S4 Gas Boiler

• 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:
  • Multiple set-up and zone options
  • System sensing recognizes system and outdoor temperatures
  • Temperature management for up to three different set-points
  • Control multiple boilers from a single control panel
  • Standard screen messages provide service alerts and maintenance reminders