Modified Trangia 27 windshield :-(

Discussion in 'Stove Forum' started by installer, Jul 28, 2012.

  1. installer

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    Just thought I'd post this as a warning to anyone thinking of trying a non standard burner in a Trangia!

    The damage was done using a modified MSR Pocket Rocket gas burner, with a snug fitting non Trangia pan :(

    1343478780-trangia_mod.jpg

    I'm going to persist with this, maybe with a stainless Trangia clone.

    P.S Anyone got a spare windshield going cheap :whistle:
     
    Last edited by a moderator: Jun 26, 2015
  2. Ian

    Ian Subscriber

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    Do you have any pics of your modified set-up prior to meltdown?

    Before Newark this year I modded one of these cheapo Chinese gassies to fit in my T27...

    $(KGrHqR,!q!E8WWmDdY4BPJQEK0sPw~~60_12.JPG

    thus...

    1343482637-newgassy1.jpg

    More recently I have modified one of these ...

    http://www.ebay.co.uk/itm/TF-Gear-N...amping_CookingSupplies_ET&hash=item35bb38fb98

    to fit in a Clas Ohlsen Asaklitt stove, thus...

    1343482672-Asaklitt2.jpg

    In both cases I have seldom needed to use full power and low-simmering capabilities are preferable in the stoves used. The small bnr in the Asaklitt will burn very low indeed. The only other mod needed is to raise the pan slightly on the Asaklitt stove to achieve a better burn; it seems to 'self-damp' with the pan in the normal position.
     
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  3. installer

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    Well I don't have my camera to hand at this moment (my daughter has borrowed it) but the setup I had was similar to this..


    1343488791-Capture3.JPG

    Except with the gas outside the windshield using on of these..

    1343488969-Capture1.JPG

    I think my problem occured for two reasons..

    • 1) Burner too high up
    • 2) Too large a pan
     
    Last edited by a moderator: Jun 26, 2015
  4. RonPH

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    Well, trangias were designed to run on the alcohol burner which is gentle on aluminum being very low in BTU output. Having to put a higher output wil definitely affect the aluminum specially the heat generated by the pocket rocket either too far to too close to the pot bottom.

    Ron
     
  5. Ian

    Ian Subscriber

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    I was fortunate in that the actual flme spreaders of the two stoves I used were at a height very close to where the flame holes of a Tran burner would be. I think that this is something worth aiming for even if it means investing in another stove for its burner. They are cheap enough; here's one similar to that wich I used in my T27...

    http://www.ebay.co.uk/itm/Outdoor-P...amping_CookingSupplies_ET&hash=item1c27cc02a7

    Using modified Tran-clone bnrs to fit these gas bnrs is a simple and easy method. All credit to PMT Bill (Paramethtrol)for this idea.
     
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  6. Ian

    Ian Subscriber

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    But Trangia offer gas & multifuel options on their site here, so it would seem that the extra heat output is not a problem in itself.
    I think that Installer has correctly established the cause of his problems.
     
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  7. Wim

    Wim Subscriber

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    Never had a Trangia myself, so am not really in a position to comment on this but I seem to remember having read on this site the burner (talking about the liquid gas one here, not the alki one) Trangia themselves supplied has a smaller jet, thus giving less heat than a "standard" one.
    Hope this helps.

    Best regards,

    Wim
     
  8. Ian

    Ian Subscriber

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    I did a quick search which didn't turn anything up re. smaller gas jets but it may well have been the case. There's quite a bit of stuff on gas Trans going back several years.
     
  9. davidcolter

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    Don't forget the Nova conversion kit too. I have run mine several times but I keep it very low, maybe five pumps and I'm still turning it right down.

    Was the pan sharp edged around the base? The rounded bottom of the Trangia pans will Coanda-bend the hot gas stream upwards, but a sharp edge may well allow flow separation so that the hot gas continues radially outwards and impinges on the windshield.