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difference between double wall without side airflow vs with side airflow?

Discussion in 'Modern EPA Stoves and Fireplaces' started by Spirch, Sep 20, 2018.

  1. Spirch

    Spirch

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    (random image found online)

    this
    pipe1.jpg

    versus

    pipe2.jpg


    both being double wall

    any reason to go for one instead the other?

    is the airflow side help doing something or it's doesn't do anything?
     
    Spirch, Sep 20, 2018
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  2. double-d

    double-d

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    Double wall with slots allows warm form the inner pipe to go into the room, for better heating
     
    double-d, Sep 20, 2018
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  3. lukem

    lukem

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    The bottom picture will give you higher flue temps, which will help keep creosote accumulation down and give you a better draft than the other stuff.

    I've not seen the stuff in the top picture before.
     
    lukem, Sep 20, 2018
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  4. Spirch

    Spirch

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    I also assume having airflow / slot could reduce the benefice of double wall clearance reduction with combustible?
     
    Spirch, Sep 20, 2018
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  5. chris

    chris

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    one would tend to think so. but then again heat shields on the stove are open so??? or the suggested practice of a wall heat shield that is spaced away from wall by an inch or better open top and bottom.
     
    chris, Sep 20, 2018
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