What flue pipe for small wood burner

Discussion in 'Plumbing and Central Heating' started by aspley, 11 Nov 2020.

  1. aspley

    aspley

    Joined:
    2 Jun 2005
    Messages:
    346
    Thanks Received:
    1
    Location:
    West Midlands
    Country:
    United Kingdom
    If I’ve pressed the correct button there should be attached a photo of a small Yukon pot bellied wood burner to be install into a man cave.
    Question is should the flue which will go up through the roof and be circa 2m long be single rigid pipe or a twin walled flexi pipe.
    Thanks in advance of any help 8EE50433-3EF9-4E0F-A3A6-B317D8829ACD.png 8EE50433-3EF9-4E0F-A3A6-B317D8829ACD.png
     
  2. Sponsored Links
  3. bernardgreen

    bernardgreen

    Joined:
    3 Nov 2006
    Messages:
    26,042
    Thanks Received:
    2,595
    Location:
    Bedfordshire
    Country:
    United Kingdom
    Page 7 of the installation instructions might be useful.

    The flue will get very hot and if not properly installed it may set fire to the roof
     
  4. JohnD

    JohnD

    Joined:
    15 Nov 2005
    Messages:
    75,091
    Thanks Received:
    4,361
    Location:
    Crossgates, Europe
    Country:
    Cook Islands
    Isn't there a twin wall stainless rigid?

    It would surely stay cleaner.

    BTW if you can afford a modern multifuel, it will be more efficient and burn much cleaner.
     
  5. muggles

    muggles

    Joined:
    28 Oct 2005
    Messages:
    13,431
    Thanks Received:
    3,104
    Location:
    Daventry
    Country:
    United Kingdom
    Neither, it should be twin-walled rigid, assuming your man-cave's structure is timber. It should also be a minimum of 4.5m tall to ensure the correct flue draught.
     
  6. aspley

    aspley

    Joined:
    2 Jun 2005
    Messages:
    346
    Thanks Received:
    1
    Location:
    West Midlands
    Country:
    United Kingdom
    It will be very occasional use and is aesthetically more appealing than a modern stove.
     
  7. aspley

    aspley

    Joined:
    2 Jun 2005
    Messages:
    346
    Thanks Received:
    1
    Location:
    West Midlands
    Country:
    United Kingdom
    4.5 metres that would take it 2.5m above the roof. Presumably there is room for a pragmatic appraisal of what will be sufficient
     
  8. muggles

    muggles

    Joined:
    28 Oct 2005
    Messages:
    13,431
    Thanks Received:
    3,104
    Location:
    Daventry
    Country:
    United Kingdom
    The pragmatic appraisal is that independent testing organisations have carried out many tests on a large number of flue systems, and determined that 4.5 meters is the minimum required to produce an acceptable flue draught. Any less than that risks downdraught and potential carbon monoxide poisoning. I'd suggest that "installing the stove in a manner least likely to cause severe illness or death" is a reasonably pragmatic approach
     
    • Like Like x 2
  9. bernardgreen

    bernardgreen

    Joined:
    3 Nov 2006
    Messages:
    26,042
    Thanks Received:
    2,595
    Location:
    Bedfordshire
    Country:
    United Kingdom
    Flue kit details HERE suggest at least 3.6 metres

    upload_2020-11-11_13-14-49.png
     
    • Thanks Thanks x 1
  10. Sponsored Links
  11. muggles

    muggles

    Joined:
    28 Oct 2005
    Messages:
    13,431
    Thanks Received:
    3,104
    Location:
    Daventry
    Country:
    United Kingdom
    Although it is maybe worth noting that those instructions are 20 years old, but either way confirm that the proposed 2m is grossly insufficient
     
  12. denso13

    denso13

    Joined:
    22 Jan 2007
    Messages:
    6,174
    Thanks Received:
    1,149
    Country:
    United Kingdom
    And seemingly made in New Zealand quoting their standards, "Following these installation instructions and the instructions accompanying your flue kit will ensure that the heater complies with the requirements of the appropriate Safety Standard AS/NZS 2918."
     
    • Like Like x 1
  13. oilhead

    oilhead

    Joined:
    29 Nov 2009
    Messages:
    2,182
    Thanks Received:
    523
    Location:
    Shropshire
    Country:
    United Kingdom
    But of course, if the answers given are not what you want t hear, then they must be wrong.
     
    • Like Like x 3
  14. Top Line!
     
    • Like Like x 1
  15. Looks like a homemade still.
     
  16. aspley

    aspley

    Joined:
    2 Jun 2005
    Messages:
    346
    Thanks Received:
    1
    Location:
    West Midlands
    Country:
    United Kingdom
    What a juvenile response that is.....I didn’t for one moment suggest the answer was incorrect and I think you and your fellow keyboard warriors fully understand that. My question was simply intended to allow an examination of what allowances, if any, might be sensible bearing in mind the intended location and use of this small log burner. A simple ‘there aren’t any’ would have been more than adequate.
    The burner is located in what is basically a shed with a flat roof and is 2.2 meters high.......a flue extending upwards from the burner with what would be 3meters above the flat roof is something I’ve never seen but hey ho
     
  17. aspley

    aspley

    Joined:
    2 Jun 2005
    Messages:
    346
    Thanks Received:
    1
    Location:
    West Midlands
    Country:
    United Kingdom
    It’s a quality antipodean produced cast iron stove I’d have you know !
     
Loading...

Share This Page