I've been searching the threads about fitting the Trangia 25 or 27 windscreen with burners other than the Trangia alcohol burner. My head is spinning. Could someone simplify for me (please) what the options are using currently available (i.e., new from retailers) burners etc.? There are some great ideas out there but they often involve cannibalizing parts from other burners or using earlier versions of burners or burners that are not easily available, or going into the metal shop and crafting something. Where I live, I can't easily obtain those things. My search yields that for gas or liquid burners, the currently available options are the Trangia X2, the Trangia gas burner, and the Nova burner with the Trangia adaptor. Also I have seen that the Primus Omnifuel burner (not exactly sure if it's the currently available version) can be used by a little drilling into the burner and cutting into the Trangia. Are there any solutions that I am missing? I'm trying to make the Trangia 25 stove our basecamp stove.
I have not looked at doing what you want to do. That said, I understand it the same way as you said. Why do you not want to use one that you know works? One of the ones that you listed?
Every option has its own issues, and given the price of many backpacking stoves I wanted to make sure I was not missing an option.
there are Chinese butane adapters for the Trangia - find them on amazon or ebay - but I suggest you think about the fuel you want to use - and that may be determined by your destination and the local availability of fuels - decide on the fuel and find the burner to match
Since I cannot see where on the globe you're sitting maybe you cannot get hold of THE solution for a modern multifuel burner for the Trangia kit: the Optimus Polaris. Fitted with a silent burner cap it is the final solution! (Fires everything bar alcohol - but that's no problem since you already have the original T burner if you for some strange reason would like to use alcohol for something else than pre- heating and/or drinking.)
I was looking at that but could not confirm that the Trangia adaptor sold by Optimus would accommodate the Polaris burner. Optimus only lists the Nova and the Nova+ for that adaptor. Does the Polaris fit? It looks the same.
I asked this to Optimus and they responded almost immediately, early in the morning: "Yes, the Optimus Polaris also fit to the Trangia adapter. Because the ignition of gas is recommended sideways through the venting holes of the housing it’s a little bit tricky to fire it up mounted in the Trangia system. But if you use a pan on the burner for ignition it should work also easy."
I have seen two type of Optimus multifuel burner adapters for Trangia. Current one: Older one: Basicly both work with all multifuel burners that are mounted to their stand with a screw that is on the bottom of the burner. They might need some drilling(enlarging the hole on the adapter) or extra washers to get firm mounting. I have used both adapters for Primus Omnifuel burner (not current model). First type of adapter is very easy to make by self. Just a strip of steel, bend it to desired form. Drill hole for the burner mount. Make small notches to secure it to Trangia wind screen and add spirit cup. Here is one example for 'classic type' burner: Some more details from above here: https://classiccampstoves.com/threads/threads-for-burner-head.28225/
Gary, what you need in order to fit the Polaris into a Trangia windscreen is the second adapter Afterburner show us. It's the Trangia made holder for their multifuel burners, currently it's for the X2 (which in essence is a gilded Primus with lousy simmer regulation). The Polaris fits into that holder cup like if it were made for the purpose. Trangia has a part number for that MF adapter cup, it's part number 788205 (for just the holder cup, no burner). [The first one Afterburner show us is the Optimus made Trangia adapter - it's simply rubbish in comparison to the Trangia made one!] Apart from that cup you need to make an extra hole in the lower windshield so that the regulator spindle can reach the outside while the fuel line passes through the large hole already present in the wind shield. (Attached is some pictures I took for a Swedish forum article. First one is the Trangia 25 measured up, second and third are the end results. The hole is 16 mm in diameter, it's centered 8 mm up from the 7th hole in the row. The hole should be done with a step drill.) And! The first test brew was a success! Percolator positioned on the Trangia pan stand (612527): To sum it all up: You need a Trangia kit (preferably the 25 DuoSSAL imho) + An Optimus Polaris stove + A "silent" damper cap (preferably the PolarDawg2 imho) + A Trangia MF adapter cup (Trangia part number 788205) + A Trangia pan stand - in order to utilise under-size kettles (Trangia part number 612527) to copy my solution. You'll never look back... Cheers, /Odd
Wow, thanks! I needed that cookbook approach. One question: if the 16 mm hole is centered 8 mm up from the 7th hole, it is going to overlap tangentially with the 7th hole, right? The photo makes it look like they don't overlap. Of course, once I get the parts and start laying it out, I suspect I will figure it out what is needed. I have the 27 Duossal but I am getting ready to order the 25 for this project, maybe with a spare windscreen base.
Looking into the other/later Polaris adaptions I've done it seems the step drill should stop at just over 15 millimeters in diameter and you should increase the centre punch marking to ~8.5 mm - this leave more than just a fraction of a millimetre in between the new and the old hole if everything lines up correctly - but if you penetrate through this fraction and into the smaller hole doesn't really matter. Actually it COULD be beneficial for putting the green handle through the hole… Accidentally did it on a 25, and it was not a bad thing: It's just as easy to do this to a 27 - only difference is you use the 5th hole in the row: Cheers, /Odd
PS. Another improvement you can do to the Trangia windscreen is to better the positive lock of the bayonet locking idea between the two halves. Slightly bend the edge on the upper half so it friction locks into the pressings in the lower half. Gives a much more rigid windscreen pair... [Should have been done already at the factory imho! :-) ]
The definitive guide! Thanks again. I've just ordered the burner adapter (with shipping cost being 50% more than the item price).
I had a go at a soto conversion on a T27 a while back - it was a bit mad and the soto pump is horrendously over complicated I do like the burner though it is very light and I am thinking of trying it on butane
The Polaris seems a bit pricey plus you need the additional adapter. What's wrong with the Trangia X2? It's multi fuel and already designed to drop in.
An earlier attempt at an adapter. There are loads of stoves that can be made to fit a Trangia. Q Rando 360 in a Trangia 27.
My first thought...reading all this... why not use the one DESIGNED for it. Then I thought, what they heck have fun with it. That's what this is all about.
I wanted to be able to also use the stove independent of the Trangia as a standalone stove, such as for larger or additional pans, and the X2 didn't seem to do that. I might be wrong. In addition, the consensus seems to be that the Nova is better able to simmer, which is really important if true. Finally, it's an Optimus adapter, so it's also designed for this. Other than that, both stoves are expensive anyway and I had to just go with one. Or two....
