Ultra Series 3 – high efficiency modulating floor stand condensing boiler

The Ultra Series 3 has models from 80,000Btuh to 399,000Btuh, it delivers piece of mind, comfort, and immediately payback in energy saving for homeowner

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  • High efficiency with AFUE from 95.1% to 96.4%;
  • Modulate with 5-1 turn down ratio;
  • Outdoor reset control for maximum comfort and efficiency;
  • High grade stainless steel burner;
  • A cast aluminum (heat exchanger) mono block heats faster—aluminum provides 10 times better heat transfer than stainless steel;
  • A variable speed motor that constantly matches combustion output to your heating needs

Warranty Information

Weil McLain provides 12 years limited warranty on heat exchanger and 2 years limited warranty on all other covered parts.

Spring Home provides one year limited labor warranty.

NOTE: Please refer to manufacturer and Spring Home Warranty Terms and Conditions for details.