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  1. #1
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    Default Gas water heater vent termination

    Can anyone tell me if this is proper vent termination? (gas water heater)
    Thanks

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  2. #2
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    Default Re: gas water heater vent terminatin

    Zibby,

    Looking at IRC 2003 G2427.8 Venting system termination location.

    The minimum clearance from any opening into a building is 6 inches and the distance goes up with the Btu rating of the appliance.

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  3. #3
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    Default Re: Gas water heater vent termination

    Quote Originally Posted by Zibby Swieca View Post
    Can anyone tell me if this is proper vent termination? (gas water heater)
    Thanks
    Depends on what type of water heater it is. If it is a direct vent, this is most likely the approved cap as it takes in fresh air as well as disposing of the combustion air. How far is the cap from the crawl space? It looks like it could be OK.

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  4. #4
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    Default Re: gas water heater vent terminatin

    edited

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    Last edited by Zibby Swieca; 01-22-2012 at 04:48 PM.

  5. #5
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    Default Re: Gas water heater vent termination

    Quote Originally Posted by Scott Patterson View Post
    Depends on what type of water heater it is. If it is a direct vent, this is most likely the approved cap as it takes in fresh air as well as disposing of the combustion air. How far is the cap from the crawl space? It looks like it could be OK.
    Scott,
    IRC 2003 G 2427.8(503.8) Section 3

    Direct Vent 10,000 Btu at least 6 inches from any air opening into a building

    over 10,000 Btu but not over 50,000 Btu shall be installed with a 9 inch vent
    termination clearance

    over 50,000 Btu shall ave at least a 12 inch vent termination clearance.

    Zibby,

    T&P discharge line is improper.

    Last edited by Billy Stephens; 12-02-2007 at 10:10 AM.
    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  6. #6
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    Default Re: gas water heater vent terminatin

    edited

    Last edited by Zibby Swieca; 01-22-2012 at 04:47 PM.

  7. #7
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    Default Re: gas water heater vent terminatin

    Thanks,
    It is 40.000 Btu


  8. #8
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    Default Re: gas water heater vent terminatin

    Quote Originally Posted by Zibby Swieca View Post
    Thanks.
    What if house is wired with aluminum wiring.
    What does TREC say about Aluminum Wiring?

    Quote Originally Posted by Zibby Swieca View Post
    Thanks,
    It is 40.000 Btu

    Mechanical draft venting system at 4 feet below,4 feet horizontally from, or 1 foot above any door,operable, window or gravity air inlet into any building......

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  9. #9
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    Default Re: gas water heater vent terminatin

    Zibby,

    Depends on what part of the wiring is aluminum. If the conductors are the larger size for electric appliances or other panels, then AL is fine. If it is for the branch circuits, then there is a potential problem and corrections should be designed and implemented by a licensed electrical contractor.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  10. #10
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    Default Re: gas water heater vent terminatin

    Yes it is for the branch circuits.


  11. #11
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    Default Re: gas water heater vent terminatin

    Check the manufacturer's instructions - I've been surprised more than once at the the small separation some require from potential means of air entry to a structure.


  12. #12
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    Default Re: gas water heater vent terminatin

    Quote Originally Posted by Michael Thomas View Post
    Check the manufacturer's instructions - I've been surprised more than once at the the small separation some require from potential means of air entry to a structure.

    Good Advice,

    Most Water Heater Manufactures do not address Vent Termination.

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  13. #13
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    Default Re: gas water heater vent terminatin

    Quote Originally Posted by Zibby Swieca View Post
    House is wired with aluminium wiring. Acceptance of this condition rest solely with client. Houses wired with aluminium wiring are known by insurance industry to have higher risk of electrical fires and insurance rates are usually higher for houses with aluminium wiring.

    Do you agre or disacree with above statment.
    How do you comment on house with aluminium wiring.
    Thanks.
    Personally I don't care for the Alum Wire verbiage. I like telling my client this "This home has single strand aluminium branch circuit wiring. Although many homes have this type of wire and show no signs of problems it is considered to be a fire hazard and it should be replaced. Some repair options are available but they have been proven to have problems as well. Have a qualified electrician provide a quote for replacement of all aluminium branch circuits."

    As for the water heater:

    That is not a direct vent.
    The vent termination is wrong.
    The TPR line is wrong.

    Last edited by Scott Patterson; 12-02-2007 at 12:17 PM.
    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  14. #14
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    Default Re: gas water heater vent terminatin

    edited

    Last edited by Zibby Swieca; 01-22-2012 at 04:48 PM.

  15. #15
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    Default Re: gas water heater vent terminatin

    Quote Originally Posted by Zibby Swieca View Post
    Can anyone tell me if this is proper vent termination? (gas water heater)
    Thanks
    Quote Originally Posted by Zibby Swieca View Post
    Those are combustion air openings for hot water
    heater.
    Zibby,

    ?????

    Isn't one a combustion gas vent ? (round) one an inlet for combustion air ? (rectangular)

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  16. #16
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    Default Re: gas water heater vent termination

    Scott is correct:

    Quote Originally Posted by Scott Patterson View Post
    As for the water heater:

    That is not a direct vent.
    The vent termination is wrong.
    The TPR line is wrong.
    That is a natural draft water heater, thus that vent and termination are completely and totally wrong.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

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