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 6-10 of 11 reviews

"Great Boiler! Worked for years and I still use it!"

5.0 rating
Very Satisfied

I've had this boiler for about 3 years now without issue, it has always worked when I needed it and without any use for replacement parts or hoses. It's great throughout the seasons when things get tough down in the hard winter nights of Virginia. This past year when the snowstorm hit and we needed heat quickly and reliably and this unit delivered. I've been with other brands that wear and tear after only a single year, this guy has been running without issue for over 3 now like I said. Our home is a 2-story Victorian style with large rooms and high ceilings but we've never had a problem using this unit to keep us alive through winter haha. We know of several friends who live in high rise apartments as well that use this unit and brand regularly for heat regulation. Highly recommend this Boiler to anyone who needs reliability and sturdy heat throughout your seasons.

Charlestown, Virginia

"Very costly to fix for a 5 year old boiler"

3.0 rating

In a month's time I have spent $1100.00 to service and fix a 5-year-old boiler. I was not happy with the service company who also installed the unit, this is one of Weil Mclains contractors they recommend. After servicing the unit for a no heat call, 10 days later I called for another no heat call and they charged me to come out. I am done with Foley Mechanical!

Dale Hocking

Medford, NJ

"My awesome boiler"

5.0 rating
Very Satisfied

I've owned this boiler for about five years now and god do I love it. I have never had a single issue with this boiler, at all. Knowing that I haven't had to spend any time working on it or getting it fixed other than when I first set the thing up has been a huge load off of my mind. I would definitely recommend this brand to family and friends alike. This boiler is just dependable and that's it. Nothing fancy, nothing crazy, just dependable, cost efficient and low maintenance. For my next boiler, I am definitely going to consider buying the same brand. I mean, why not? All I've had so far with this boiler is success and no pains or issues. Compared to the other boilers I've had in the past for my house and apartments, this one takes the cake. Weil Mclain is the way to go for sure.


"Ultra boiler and 40 gallon Water Heater"

3.0 rating

Had Weil-Mclain boiler & water heater installed on 08/18/10. Everything working great until the other day I noticed water on the floor around the water heater. I dried up the water to see if I could find out where the water was coming from. One place was the automatic air valve on top of the unit. This just drips water out slowly. The second one is coming out in- between the black bottom and the tank. Weil-Mclain only covers the cost of the part, not labor. So, after only 3.5 years I have to spend a couple hundred dollars to get it fixed already.


"PROBLEMS…and more problems"

1.0 rating
Very Unsatisfied

2010 installation. Service calls commenced within 1 wk of installation. I am of the opinion that Weil-McLain has poor quality components. Further, the service techs seem clueless about this gas hot water boiler.


Quad Cities, Iowa

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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