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DIY Heat Exchanger Replacement

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druwithau
druwithau Member Posts: 1
in THE MAIN WALL
Good evening. Got a leaking Weil-McLain Ultra 105 R, Series 1. Well maintained unit, but a large hole in the heat exchanger. Question is, what advice do you have for a potential DIY project replacing it? Kit part is 383-500-774. Worth it? Too difficult? Better off replacing the circa 2005 boiler? For now JB Weld Steel Stick has patched the hole, and everything is working and not leaking, but I know I am on borrowed time. Thanks all!


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  • HVACNUT
    HVACNUT Member Posts: 5,841
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    It's a Series 1. Replace the boiler. What's next to fail and how much time and money are you willing to dump into it?
    The Series 4 is a nice boiler IMO. 
    A replacement HX is definitely not a DIY project. Not saying you physically can't do it. You probably don't have the proper testing equipment. 

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