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Heating perfection and long-term protection
Every Ultra boiler is hydrostatically tested to ASME standards and test fired
Backed by Weil-McLain quality and a warranty that provides peace of mind
Unrivaled technical and field sales support
From North America's leading boiler manufacturer with over 135 years of proud history
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
Back-lit LCD display and simple programming buttons make entering and receiving information easy
Energy Star® Rated
Heating perfection and long-term protection
Every Ultra boiler is hydrostatically tested to ASME standards and test fired
Backed by Weil-McLain quality and a warranty that provides peace of mind
Unrivaled technical and field sales support
From North America's leading boiler manufacturer with over 135 years of proud history
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
Back-lit LCD display and simple programming buttons make entering and receiving information easy
Energy Star® Rated
Heating perfection and long-term protection
Every Ultra boiler is hydrostatically tested to ASME standards and test fired
Backed by Weil-McLain quality and a warranty that provides peace of mind
Unrivaled technical and field sales support
From North America's leading boiler manufacturer with over 135 years of proud history
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
Back-lit LCD display and simple programming buttons make entering and receiving information easy
Energy Star® Rated
Heating perfection and long-term protection
Every Ultra boiler is hydrostatically tested to ASME standards and test fired
Backed by Weil-McLain quality and a warranty that provides peace of mind
Unrivaled technical and field sales support
From North America's leading boiler manufacturer with over 135 years of proud history
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
Back-lit LCD display and simple programming buttons make entering and receiving information easy
Energy Star® Rated
Heating perfection and long-term protection
Every Ultra boiler is hydrostatically tested to ASME standards and test fired
Backed by Weil-McLain quality and a warranty that provides peace of mind
Unrivaled technical and field sales support
From North America's leading boiler manufacturer with over 135 years of proud history
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
Back-lit LCD display and simple programming buttons make entering and receiving information easy
Energy Star® Rated