Pellet pipe thru the roof?

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by MCPO, Jun 26, 2008.

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  1. MCPO

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    Can pellet pipe be used to go straight up and through the roof in leu of a chimney?
    John
     
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  2. gw2kpro

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    Yes. You will need to maintain adequate clearances to combustibles (1" through the roof US, 3" canada) -- the pellet vent pipe manufacturers make a section that you can install that runs from your existing ceiling through the attic that accomplishes this.
     
  3. MCPO

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    Thanks ,
    And does the rule of extending it 24" above the highest roof point within 10 ft ( chimney regulation ) apply to a pellet vent?
    Or being it is a postive flow that would resist any backdraft , it is exempt?
    Thanks again,
    John
     
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  4. Shortstuff

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    Yes John, in MA you must provide the 24" above the roof as you said.

    Steve
     
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  5. MCPO

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    OK, so I assume vent pipe size would have to increase to 4" exceeding 15 ft length ?
    John
     
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  6. gw2kpro

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    Not quite. This should get you what you need.

    http://www.duravent.com/docs/instruct/L550_Oct07.pdf
     
  7. Shortstuff

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    John, here is a link to the Simpson Duravent installation file which may help answer some questions for you.

    Also, I am right in the middle of a complete install of my own free-standing pellet stove right now and my install includes a simple "T" with cleanout at the bottom out of the back of the stove and a straight 14' run vertically through the ceiling, attic and roof with 3" ventpipe. I can provide you with a lot of good information and assistance if you want to PM me.

    Steve
     
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  8. gw2kpro

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    My vent pipe is supposed to be here on 7/3. Installing an enviro mini (free standing, through the roof) on my second floor, first floor has my breckwell. Where did you get your pipe at?
     
  9. Shortstuff

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    Hi gw, I got my pipe (Simpson Duravent Pellet Vent Pro) from Franklin Fireplace where I bought my stove.

    Steve
     
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