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Pretty sure I need to replace the heat exchanger in my LAARS Endurance EBP 110 [pics]

DanInCambridgeDanInCambridge Posts: 1Member
edited March 13 in THE MAIN WALL
I have a gas Laars Endurance EBP 110 that provides DHW and forced based board heat for a 1600 sqft townhouse. Unsure of how old but a plumber recently told me it's about 14 years old. The pictures make a long story short (intermittent DHW, ok pressure), if you'd like the long story let me know.

Laars tech said I probably also need to replace the anti-condensing valve as that is probably what is causing the scaling.
(that and hard water)

I can buy a new heat exchanger for ~$.

My question is, are there any tricks to getting the old one out and the new one in? I haven't tried it yet but it looks VERY tight, especially the nuts in the back. Special tools that make it easier?
Do I need to completely turn off the boiler? ie gas, electric and water supply? Or is it enough to just turn off the water supply, drain the system and turn off the heat so the unit cools down enough to work on?

Or should I just be thinking about replacing it. I got one quote for $ and another about $, not including rebates. Both quotes seem crazy high though I am in the north east and really enjoy hot showers...


  • ZmanZman Posts: 4,817Member
    We don't discuss pricing on this site.
    14 years is pretty good for an endurance. There is lots of other stuff that goes bad at that age.I would not put a dime into it and replace the whole show.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • HydroNiCKHydroNiCK Posts: 82Member
    Get a new one. I don't like that boiler....dumb design.
  • SuperTechSuperTech Posts: 938Member
    I don't understand why you had to ask about shutting off the water and electric while working on it.

    The plate heat exchanger isn't inexpensive, you have to consider the fact that the rest of the boiler has just as much wear and tear on it and at this point you have to consider that you are going to have further problems if you choose to repair it now. A new boiler will provide you with more efficient operation and a warranty.

    If you want to repair it no special tools are needed beyond the obvious ones. Shut off water and power, no need to turn the gas off. You may have to remove other components to get to it.
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