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smoke pipe distance from sheet rocked wall

rcav1 Member Posts: 1
a was told by a homeowner that she had a chimney expert in to trace a leak around the chimney. its a insulated unit til it entewrs the utility room. the breech pipe is 6 to 8 inchs from the sheet rocked walls. he scared the hell out of this woman,who is very trusting, by telling her it was not code and the place could burn to the ground. this is a normal installationwith nothing i haven't seen hundreds of times in the 40 yrs i've been doing this work. hdoe's any one know if this is not code. i'm in n.y state


  • kevin coppinger_4
    kevin coppinger_4 Member Posts: 2,124

    is classified as a combustible material...belive it or not....Some people are "alarmists" they like puffing them selves up by scaring people. Look at table 10.6.2 on nfpa31...it will show youa bunch of ways to reduce the clearances to combustibles by using sheetmeatal w/ an airspace. kpc

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  • Alan R. Mercurio_3
    Alan R. Mercurio_3 Member Posts: 1,620

    You can access NFPA 211 Free by using the link below and agreeing to their terms.

    You should be able to find all the information you're looking for in that book.


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  • Weezbo
    Weezbo Member Posts: 6,232
    \"We will confront Bambi in the next session\"....*~/:)

    for now, we will bring up pleasant images ...the calm quiet pool of still water... flawlessly, being ..."at one with the Universe", as it were....

    now, we will go Deep into your subconscious mind.. to view the quiet corners ...now immediately become aware of your ability to watch the stream of your thoughts passing by as a river from a quiet place outside the boiler room.....breathe deep...:)

    bust open the UMC ,look at table 8-5 therein will be revealed the answer .... :)

    Table 3-3 figure 3-1 has a Picture that addresses the question so you don't have to waste time reading the code book :)) Mad Dog likes to refer to them as Knee pads Left by the previous installers :)

    to aid in the presentation of the idea to the home owner...bag off the terminology of calling the vent a Smoke Pipe:)
  • JB_8
    JB_8 Member Posts: 85

    NFPA is not NY State law. What is the regulation for a fire company that responds to a fire under the NFPA code? Is it two 18 year olds or three 18 year olds???? They don't mind telling everyone about fire so please tell me tell me NFPA. What makes up the manning for a fire Co. ?????
  • Alan R. Mercurio_3
    Alan R. Mercurio_3 Member Posts: 1,620

    I offered NFPA 211 as a source to answer the question of clearances. in most cases if a state does not go by a given organization such as NFPA or IRCC they still refer to it and in some cases exceed its recommendations.

    Do you have a reference that may be helpful in addressing this question? I’m always open minded and willing to learn.

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  • Bob Harper_2
    Bob Harper_2 Member Posts: 54
    please clarify

    The clearances are based upon fuel types and materials. Please clarify what you have. By saying insulated into the utility room are you referring to an insulated factory chimney, an insulated listed liner inside a masonry chimney or L-vent? Once the chimney type is established, that will determine the clearance to that chimney.

    Next, the "smoke pipe" from the appliance to the chimney is determined by fuel type. For gas, it is a "vent connector", while oil is a "chimney connector.

    Unlisted single walled connectors are 6" for gas and 18" for oil unless listed otherwise. Factory chimney is 2" to combustibles. Before you hang the chimney inspector, I recommend you clarify what is what.

    FYI, while NFPA 211 may not have been voted into law in your area as a line item, it is still the code for most of the country for heating equipment. For gas appliances, both the Nat'l Fuel Gas Code NFPA 54 and the IFGC refer to 211 when discussing chimneys. Ditto for oil. Most all codes in the country refer to NFPA 31 for oil, which then refers you back to 211 for chimneys, connectors, and clearance reduction systems. NFPA 211 is THE National Standard. Whether a code or not, you should be aware of it because that is the measure to which you will be held in court.

    FYI, some of the other agencies that refer to 211 include ASHRAE, ASTM and UL. When UL tests something in a chimney, they use 211 as the reference for what kind of chimney to test into.

    Best to arm yourself with information before you bark.
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