Coleman Powermax Stove

Discussion in 'Fettling Forum' started by Viscara, Feb 12, 2013.

  1. Viscara

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    Came across this stove on Craigslist. I am aware that they no longer make the fuel canisters for it. I believe I have seen adaptor kits or ways of customizing a stove hose to be able to connect to other fuel canisters. Not sure if its worth the hassle or not but hey 10 bucks for a stove it may be worth it. If not let me know and anyone else interested in getting the stove just to have for their collection let me know and I can pick it up for them an ship it to them if they like. I have no experience with these stoves but they seem a shame to go to the waste side and believe collectors should keep a few around for historical purposes.

    http://sfbay.craigslist.org/eby/for/3612185978.html
     
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  2. hikerduane

    hikerduane Subscriber

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    The adaptor to Coleman/propane pound canister is $20 something dollars. They work great.
    Duane
     
  3. RonPH

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    Hey Viscara, I did see that also but alas, have too many stoves to think of adding that and since its sometimes difficult to find the canister, I'd stay away unless you can find the adapter which sometimes pops up on fleabay.

    Ron
     
  4. hikerduane

    hikerduane Subscriber

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    Amazon has them also, best price for mine was from eBay or another source, cannot recall now. The price of the adapter will pay for itself in one purchase of the pound size propane bottle.
    Duane
     
  5. magikbus

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    I haven't done this myself, but I'm about to. I received information that you need two adapters to be able to use the Coleman one pound propane cylinders.

    The first adapter is the Coleman model # 9705-725 Available from Coleman.com, that lets you run the very common 70% propane, 30% butane smaller cylinders with the powermax stove. These smaller cylinders are used on a wide variety of modern stoves. If you want to connect up with the one pound propane only cylinders, you then need the Kovea LPG adapter AS WELL, from Korea found here http://www.expeditionexchange.com/kovea/

    If you find out that I'm wrong, or anyone reading this has found out first hand that I'm wrong, please don't hesitate to post the proper adapter(s).
    Stan
     
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  6. meld

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    I bought one of these a while back and just used it this weekend in winter conditions, teens and 20's, to melt snow for water. I bought all the proprietary cylinders I could get my hands on and also bought the adaptor for it. I had a bunch of partially filled cylinders laying around so brought them along to use up. The fuller cylinders worked well but the partial ones not so good. If I held the proprietary cylinders vertically they worked better that if they were horizontal. All in all the stove functioned perfectly well.
     
  7. snwcmpr

    snwcmpr SotM Winner Subscriber

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    There is a thread about how to refill the Coleman Powermax canister here somewhere.
    I bought one and a dozen canisters.

    Ken
     
  8. hikerduane

    hikerduane Subscriber

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    I have the Coleman adapter, still in its package, thinking now I will never need it as I have so many Powermax canisters. It should fit into the regulator, so that may be what is being referred to as needing two adaptors. I have the Kovea adaptor which will work on some of my stoves, not my MSR SuperFly.
    Duane
     
  9. magikbus

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    Evidently you have to fit the Coleman adapter onto the powermax regulator, then screw the Kovea LPG adapter onto the coleman adapter and then you can screw the one pound cylinders onto the Kovea LPG adaapter.

    Without the Kovea LPG adapter, evidently you can only use the smaller 70/30 propane/butane cylinders meant for several other stoves.

    Is this correct??
     
  10. presscall

    presscall United Kingdom PotY Winner SotM Winner SotY Winner Subscriber

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  11. hikerduane

    hikerduane Subscriber

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    I havn't opened the Coleman adapter package. No mention has ever been made that a second adapter is needed. My understanding is the Coleman adapter attaches to the Powermax valve with the pound propane canister screwed into the Coleman adapter. The Kovea adapter is to enable you to attach the one pound propane canisters to the small isobutane stoves like the Pocket Rocket, Snow Peak stoves and all those type stoves.
    Duane
     
  12. magikbus

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    Here's the url for the Coleman.com site that shows how their adapter # 9705-725 fits on one of those little 70/30 propane/butane canisters. I don't think those canisters take the same thread as the Coleman one pound cylinders, or do they? I'm assuming this is the same adapter that you have?

    It says the adapter "Fits the 9770 series Coleman® Exponent® Fyrestorm™ series stoves" canisters.

    http://www.coleman.com/product/powermax-fuel-adapter/9705-725?contextCategory=2005#.USY_OaV1_ag
    Stan
     
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  13. hikerduane

    hikerduane Subscriber

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    That's the adapter. Slow here, makes sense now, maybe I was off on a different tangent thinking that would work for the pound propane canisters. You would be right then, the Kovea adapter would be needed. I guess I have too many combos working in my head. Sorry to side track this. At least with the Powermax, they can be laid down instead of creating a highrise to operate the stove.
    Duane
     
  14. magikbus

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    That's true although one of the guys on the CCF has reported that he uses the one pound Coleman cylinders laying on their side and even in cold weather has good performance using the stove.

    I'm taking a trip to the US on Saturday and might just check in some stores to see if I can find one of those Coleman adapters.
    Stan
     
  15. hikerduane

    hikerduane Subscriber

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    Stan, I got mine online or thru eBay, Amazon was too much if I recall. I think if that pound propane is laying on its side, you'll need a stove that can vaporize the fuel first if you are not aware of that, but then the little top mounted stoves would not work setting horizontal. I don't think the Powermax adapter would be a hot item. Good luck finding one.
    Duane
     
  16. magikbus

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    The physics involved means that the powermax stove has a coil that vapourizes the liquid propane using the heat from the flame, however if the one pound propane bottle is lying on it's side then obviously only the top half of the propane liquid will get to the vapourizing coil of the stove.

    Propane however doesn't need the heat of the stove to vapourize as that happens at anything over -40 deg..

    The problem with allowing the liquid to vapouize in the tank, is that it also cools the tank as it vapourizes.

    This can only happen for so long before it will reach that -40 deg temp inside the tank and stop the stove.

    At that point, you will have to tip the tank right upside down to get the fuel flow back to liquid. A bit of a pita but I'm looking at designing a stand that is both light and sturdy to hold a one pound Coleman bottle upside down.

    A bit more thought will have to be put into that endeavour however, it's a work in progress.
    Stan
     
  17. bajabum

    bajabum R.I.P.

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    Just as a side note, today I noticed the one pound Coleman propane bottles are approaching $6 !
     
  18. hikerduane

    hikerduane Subscriber

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    Gotta shop around for best price, they can be pricey, I've seen them under $3 still, not Coleman brand though. I hardly use that size/fuel.
    Duane
     
  19. Hersh

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    Should you or anyone else care to sell their adapter I would be interested if it's priced reasonably. thanks,
    Hersh
    coramdeoiii@hotmail
    Please put in Subject... "Coleman adapter"