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  1. #1
    Jon mackay's Avatar
    Jon mackay Guest

    Default Pellet Stove vent type and chimney clearance

    In this installation, the vent pipe for this pellet stove was enclosed within another black vent pipe. There was no way to verify the condition of the actual vent pipe. Is this installation acceptable?

    The chimney was terminating at 33" above the roof peak. Because a pellet stove is a solid fuel appliance, it still needs to be at a minimum of 36" above the ridge, correct?

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  2. #2
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    Default Re: Pellet Stove vent type and chimney clearance

    Quote Originally Posted by Jon mackay View Post
    In this installation, the vent pipe for this pellet stove was enclosed within another black vent pipe. There was no way to verify the condition of the actual vent pipe. Is this installation acceptable?

    The chimney was terminating at 33" above the roof peak. Because a pellet stove is a solid fuel appliance, it still needs to be at a minimum of 36" above the ridge, correct?
    No, pellet stoves can be exhausted right out through the wall with a short gooseneck pipe, because the exhaust is much cooler and cleaner than for a woodstove. I can't say if the pipes you found there are correct or not. You need the manufacturer's installation manual for more info. Check online for a pdf.

    John Kogel, RHI, BC HI Lic #47455
    www.allsafehome.ca

  3. #3
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    Default Re: Pellet Stove vent type and chimney clearance

    That looks like some "Jimmy Wrigging" for sure - Ditto what John said about finding the manufacturer's specs. That's where the best info will come from.

    What's with the pot of water on top? Do they really think that's going to get hot? It's like setting a kettle of water on top of a furnace. The heat isn't radiant (at least not that I've ever seen).


  4. #4
    David Bell's Avatar
    David Bell Guest

    Default Re: Pellet Stove vent type and chimney clearance

    Minimum 3 feet up thru roof and two feet above peak if peak is within ten feet, or two feet above roofline at ten feet away.


  5. #5
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    Default Re: Pellet Stove vent type and chimney clearance

    Quote Originally Posted by David Bell View Post
    Minimum 3 feet up thru roof and two feet above peak if peak is within ten feet, or two feet above roofline at ten feet away.
    I'm curious where these numbers come from? Many pellet stoves are allowed to vent horizontally with little or no vertical rise.


  6. #6
    David Bell's Avatar
    David Bell Guest

    Default Re: Pellet Stove vent type and chimney clearance

    These numbers are for a manufactured chimney through the roof. Sidewall installs, when allowed, have different clearances.

    Last edited by David Bell; 03-17-2010 at 07:59 PM. Reason: bad spelling

  7. #7
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    Default Re: Pellet Stove vent type and chimney clearance

    Quote Originally Posted by Matt Fellman View Post
    What's with the pot of water on top? Do they really think that's going to get hot?
    Humidifier

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  8. #8
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    Default Re: Pellet Stove vent type and chimney clearance

    Quote Originally Posted by Jim Luttrall View Post
    Humidifier
    I should have put a smiley... I was joking as the surfaces of the pellet stove don't get very hot. The heat is passed into the room through a heat exchanger.

    The stove gets hot but not enough to vaporize much water. The pellet hopper is likely directly beneath that kettle and if the surface got hot enough to boil the water you'd have more to worry about than some dry air.... you'd have really dry air.... filled with smoke.


  9. #9
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    Default Re: Pellet Stove vent type and chimney clearance

    I'm not that familiar with pellet stoves but have used various types of wood heaters and open pans of water. It is surprising just how much water evaporates from an open pan even if it is not hot. Just warm could easily put a quart or two of water into the air. Tea kettle, no but open topped pan will help.

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

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