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Weil McLain Ultra Gas Boiler

Models: UG-80, UG-105, UG-155, UG-230, UG-310

Weil McLain’s Highest Efficiency Boiler

The best combination of gas heating and energy efficiency.

Weil McLain Ultra Gas Boiler

  • Up to 93% AFUE
  • Gas Fired
  • Mixing body mixes air and gas providing higher efficiency
  • Designed to operate in low temperature condensing applications
  • Electronic control module automatically adjusts blower speed and gas flow rate in response to environment
  • Variable speed motor matches combustion output to heating needs
  • Stainless steel burner, features quiet operation, high efficiency and cleaner combustion
  • Limited 15 year heat exchanger warranty

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