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  1. #1
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    part needed

    I need a mercury flame switch for a comfortec model CDV36 part number GF7571

  2. #2
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  3. #3
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    BBeerme, check out this turd I have set aside for one of my customers boilers.

    I just changed out the whole gas train on a boiler with the mercury switch the OP needs Friday it just so happens to be the same customer.

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    It's not what you're capable of doing that defines you, it's what you do on a daily basis.

  4. #4
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    LOL, Small wonders will never cease.

    Had a call on an old BDP gas pack a few weeks ago. No heat. Had a funky glow coil I haven't seen for years; it was open. So I know I needed one of those. And I couldn't light the pilot with my Turbo Torch. But it also had one of those mercury probes for the flame sensor. You have to pull the whole burner assembly out just to get to that stuff.

    Gave a proposal to the customer for four hours to pull the burner bar, re-plumb it exterior to the unit, then tell them what else was wrong with another proposal.

    Or they could buy a new unit. After all, it was over 40 years old!

    Pulled the blower and couldn't believe it when I saw how good of shape the heat exchanger was.

    But the customer got the hint and is going with a new unit. Smartest thing to do in this case.


    Quote Originally Posted by billg View Post
    BBeerme, check out this turd I have set aside for one of my customers boilers.

    I just changed out the whole gas train on a boiler with the mercury switch the OP needs Friday it just so happens to be the same customer.

  5. #5
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    I think I have one of those coils, is it set in porcelain and mount on the pilot hood? I have nos parts from the 50s. I just ran out of the flat Honeywell power piles.
    It's not what you're capable of doing that defines you, it's what you do on a daily basis.

  6. #6
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    Pretty sure that's the one. Can barely even see it with a mirror and flashlight. It pre-dates those popular pilot assemblies with the white, green, and yellow wires.


    Quote Originally Posted by billg View Post
    I think I have one of those coils, is it set in porcelain and mount on the pilot hood? I have nos parts from the 50s. I just ran out of the flat Honeywell power piles.

  7. #7
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    Thread Starter
    Do you know if there is a retrofit for the controller to make it work.

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  9. #8
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    I love it when the converted boilers are all cemented shut and in order to light the pilot you have to open door and clean all the cement off and reseal it.

  10. #9
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    Your latitude is somewhat north of me, I don't get that here. Any and all boilers I have ever seen run on natural gas from the factory.

    In fact, I really don't know a thing about oil fired boilers. Except that they run on oil. Regarding a converted boiler, not even in my realm of experience. But if I moved to where you are, I can promise you that I'd be a fast learner !!


    Quote Originally Posted by billg View Post
    I love it when the converted boilers are all cemented shut and in order to light the pilot you have to open door and clean all the cement off and reseal it.

  11. #10
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    It's not unusual for me to see 90+ year old boilers, first converted from coal to oil and then from oil to gas, the last one I changed out did still had stoker parts still under the oil tank and the timken oil conversion burner under the steps.
    It's not what you're capable of doing that defines you, it's what you do on a daily basis.

  12. #11
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    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  13. #12
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    So for the flat rate guys, that's like what, a thousand bucks to the customer ?



  14. #13
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    Quote Originally Posted by BBeerme View Post
    So for the flat rate guys, that's like what, a thousand bucks to the customer ?


    dont know, but it'd be about double for my customers
    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

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