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Weil-McLain Ultra Gas Boiler Reviews

Positive Reviews


Weil-McLain Ultra Boiler


Pros: quiet and reliable

Cons: none / must be installed properly per the instructions using knowledge and proper installation practices

I have owned my own service company for nearly 30 years. I have been on numerous calls for multiple manufacturers of boilers.  They all have one thing in common. If they are not installed properly, they will have issues.  The new technology associated with a high effeciency products requires that the installer have a deep understanding of how heating systems truly work. Too many people are quick tp blame the product for system or installation issues. I have a Weil-McLain ultra boiler in my house and it never skips a beat.  I clean and service it yearly and it is installed exactly per specifications. There a 5 supply houses within easy driving distance of my shop that carry both parts and...
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Weil McLain 230 Boiler

After reading the negative rewiew about the Weil McLain boiler, I just had to respond with my own experience.  Our original hydronic system from Heatway Systems (bankrupt due to tubing failure-manufactured by Goodrich- also out of business) was powered by a Valiant boiler a little over 20 years old.  I know way more than I wanted to about under floor hydronic heating since I have installed "Twintran" tubing that ultimately failed and led to the premature failure of the Valiant boiler.  I've replaced the tubing with Onix and now the boiler with a Weil McLain and pretty much rebuilt the hydronic distribution panel and manifolds. I am fortunate to know a certified HVAC installer, and when...
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Negative Reviews


The WORST customer service and non-existent after sales support


Pros: worked for 3 years before failing, quiet

Cons: no parts available, horrendous customer service, failed at 3 years old

My 3 year old Ultra 105 just catastrophically failed after three years in service, with a cracked heat exchanger.  Weil-McLain does not have the part anywhere, including at their facility, so now I am stuck with no heat and no hot water in the middle of a Minnesota winter for 6+ days while I wait for their factory to MAKE the part and then ship it to me at my expense.  And If I'm lucky, I might get reimbursed the ~$2000 part under warranty. Getting anyone at Weil-McLain to return a phone call or provide assistance with expediting this repair has  been impossible, even though there are two of this same model boiler at their distributor here in Minnesota that they could have swapped for...
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Stay Away from Weil McLain


Pros: Somewhat energy efficient

Cons: Incompetent dealers, dishonest manufacturers reps, multiple shutdown

In 2003 I bought an Ultra 230. It shutdown multiple times during the winter requiring manual intervention. Fortunately I was home. Otherwise the pipes would have frozen. Weil McLain's brought its "expert" to review the installation. He said there was nothing wrong, despite the system exhaust venting into my house and water intermittently being ejected. After suing the dealer, I had an ex-Weil McLain dealer re-install the system. Now it works. This heating contractor stopped working with Weil McLain because the company could not provide spare parts for systems that did not work. I wrote the top brass of Weil McLain's corporate parent and told my horror story. They sent an engineer...
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More Reviews


Service is Astoundingly Poor


Pros: High efficiency

Cons: repairs took 5 days, 3 visits, lack of parts

I had called WM for warranty service on a Saturday and it is now Wedesday and I am without heat for a 5th straight day. The local service people were not trained by WM to recognize the difference between a fault in the main boiler control vs. the digital face plate.   When they installed the new main board, the same fault error showed up and after calling tech support the local service people determined the digital panel had failed (there is a control point 'chip' in the read-out panel) and they were to return with the right part.  Well after learning that not a SINGLE WM supplier in Massachusetts had the part, it is apparently running one down from VT fedex.  Still, no heat.  This is the...
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ModCon Ultra needs professional installation


Pros: Sealed combustion true high efficiency Lowest Nox

Cons: Must be installed by an experienced professional

Many ModCons get a bad rap for the poor installation practices of a few. This is not a DIY project folks. I have installed several WM Ultras without a problem and replaced one that was not installed to specification. When buying the best, never take the low bidder. To learn
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