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  1. #1
    Join Date
    Jan 2019
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    Relocating exhaust vent question

    Im thinking about having my furnace exhaust and intake pvc vents relocated. Does extending the length of these vents make the inducer or other components work harder?

  2. #2
    Join Date
    Jun 2016
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    Not an expert, but, from what I have read, the number of turns in the piping is far more important than the length.

    Sent from my SM-G530T using Tapatalk

  3. #3
    Join Date
    Jun 2012
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    Northern NV
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    You will need to look at the installer's guide for venting your furnace. It has the data you need to ascertain if extending is an option, or if you will need to upsize the entire pipe to accommodate the extension. Do not "stretch" the allowable length! It will only cause problems with the furnace operation.

  4. #4
    Join Date
    Mar 2015
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    Hamersville, Ohio
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    Greg, Juan has given You the Correct Answer.

    The Installation Manual will give the specific Data, related to Exhaust/Intake Pipe Sizing, as well as the Number of fittings allowed, & where the Vent/Intake can be installed outdoors, be it a horizontal Installation, or Vertical through the roof.

    If, that Manual is not available, You can contact your Furnace's Manufacturer, & they will provide the Data, once You give them the Furnace Model# & Serial #.
    Hos 4:6 My people are destroyed for lack of knowledge. Because you have rejected knowledge, I will also reject you, that you may be no priest to me. Because you have forgotten your God’s law, I will also forget your children.


    "You've got to Stand for Something or You'll fall for anything" (A. Tippin)


    Mat_15:24 But he answered, “I wasn’t sent to anyone but the lost sheep of the house of Israel.”

  5. #5
    Join Date
    Jan 2019
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    Thread Starter
    Thanks I did know that the manual has very specific information in regards to how many elbows etc are allowed.

    Im assuming then if the vent is in accordance to those guidelines, I can assume my inducer will not have any problems.

  6. #6
    Join Date
    Aug 2002
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    Southold, NY
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    With questions such as these play it safe and hire a competent contractor. Besides after it’s done a combustion analyses need to be performed!

  7. #7
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    Jan 2019
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    Thread Starter
    Quote Originally Posted by pecmsg View Post
    With questions such as these play it safe and hire a competent contractor. Besides after it’s done a combustion analyses need to be performed!
    How many of your colleagues do you think would be doing a combustion analysis on this or even a new install? I bet zero. Most of them wouldnt even look at the install manual!

  8. Likes jeffmattero76 liked this post
  9. #8
    Join Date
    Aug 2002
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    Southold, NY
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    Quote Originally Posted by gregg44 View Post
    How many of your colleagues do you think would be doing a combustion analysis on this or even a new install? I bet zero. Most of them wouldnt even look at the install manual!
    You asked what should be done.

    Don’t like it, move the pipes yourself and ASSUME the risk!

  10. #9
    Join Date
    Nov 2006
    Location
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    Everyone that I know that does a new install or changes vent piping, is definitely going to be doing a combustion analysis.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

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  11. #10
    Join Date
    Nov 2006
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    Athens, Ohio
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    Quote Originally Posted by gregg44 View Post
    How many of your colleagues do you think would be doing a combustion analysis on this or even a new install? I bet zero. Most of them wouldnt even look at the install manual!
    You'd loose that bet.
    Most site members do.
    All furnaces my company works on get combustion analysis. Old and new.
    It’s stupid to ignore the installation manual.
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  12. #11
    Join Date
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    Moved to AOP.

    And I use a CA.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  13. #12
    Join Date
    Nov 2006
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    Athens, Ohio
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    No response from the OP.

    It seems he didn't like our answers.

    I've been considering a new slogan. Guys, tell me what you think.
    "You may not like our prices, but we're right."
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    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

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