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installing 6" draft regulator on a 5" pipe

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alias2102
alias2102 Member Posts: 10
edited February 28 in Oil Heating
I want to install a 6" Field draft regulator on a 5" pipe. I can do it by cutting a hole in the pipe and fitting in the supplied collar.

I wonder if there is another way. I’m considering using a 6" tee with 6-to-5-inch reducers on both ends. It will change exhaust gas flow dynamics in the pipe slightly, but I’m not sure it matters here. What are your opinions on that?

Thank you

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  • DJD775
    DJD775 Member Posts: 252
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    I posted previously about an install of a 6" regulator on a 5" pipe that might be of interest to you: https://forum.heatinghelp.com/discussion/188536/attaching-6-draft-regulator-to-5-flue-pipe#latest
    I had thoughts of using a 5" tee with a 5" to 6" increaser for the regulator but in the end the install was pretty clean doing it the old fashioned way.
    alias2102
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,544
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    The draft regulator is supposed to use the factory supplied collar and not a tee.
  • DJD775
    DJD775 Member Posts: 252
    edited February 28
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    The draft regulator is supposed to use the factory supplied collar and not a tee.

    I thought that was already debunked on this forum? As long as the regulator door does not extend into the main flow path when open, the regulator is dumb to the type of sheet metal work it is held in by. This assumes of course it is installed in a proper location.