WEIL-MCLAIN Ultra Series 3 Boilers

Weil-McLain Ultra Series 3 Boiler Overview

The Weil-McLain Ultra 3-UE is a discontinued gas boiler with an efficiency of up to 96.4% AFUE. It had a cast aluminum heat exchanger and a stainless steel burner for increased efficiency and cleaner combustion. The unit was designed to operate in low-temperature condensing applications, and a variable speed motor matched combustion output to heating needs. The Ultra 3-UE was designed for both wall-mount and floor-standing applications and was equipped with four adjustable boiler legs.

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Consumer Reviews of Weil-McLain Ultra Series 3


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #2 of 10 Weil-McLain Boiler
  • 45.45% of customers recommended

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Weil-McLain Ultra Series 3 Boiler Reviews

Showing 11-11 of 11 reviews

"Do Not Buy"

1.0 rating
Very Unsatisfied

Sure, these boilers run efficiently but can you make it through a whole winter without an expensive fix? I have 3 of them in my rental property and have had tons of issues. The latest was two control boards fried within a few days of each other and now a heat exchanger that has basically disintegrated at the bottom. Of course, you can't simply replace the blown transformer on the board or the outlet port of the exchanger. They build them, so you have to spend a lot to fix them. Never again will I buy a Weil-McLain!

David Wolfe

Cincinnati, OH

Other Ultra Series 3 Reviews

There are very few reviews of the Ultra 3-UE online. Among the few are a couple of posts on heatinghelp.com regarding problems with the units, with most members agreeing that the problems are due to installer error and not because of something wrong with the unit.

Ultra Series 3 Warranty

The warranty for the Weil-McLain Ultra 3-UE boiler is comprised of the following:

  • 15-year limited heat exchanger warranty, prorated after the 10th year
  • 1-year limited parts warranty

Labor costs are not covered by the warranty.

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