I would like one, just to have. Is the heat shield not in the Juwel 33 design? Was the 'hot tank' an issue with this stove? Was the heat shield added by Sievert when he designed the SVEA 123? I will now go to the gallery and look for my own answer. EDIT: Juwel does not seem to have the heat shield that so many stovies here say is important when using the SVEA123. Ken in NC
This baby is all steel and heavy. Takes a double preheat to get going thanks to all the steel parts and windscreen conducting heat away from the riser tube. If I wanted to tenderize a steak with this stove I could turn around and cook it with the same stove too!
Technically I believe it's the same as the Svea. I have read someplace that it's actually a copy of the Svea
I have some different Juwel 33`s. Some have steel tank marked Juwel 33U. Some have brass tank marked Juwel 33. No "U". Some have the lids attached by strap,like that on the picture.And other again by treads. Some of them are painted appelgrün and others panzergrau, i belive( I don`t know). The panzergrays are prewar or Luftwaffe, the others are propably Wehrmacht and warproduction. The Germans nicknamed them "Barthelbombe" Because of accidents from wrong use. I have used one regularly when out in the wild or traweling the roads around northern Norway.That one has brass tank. I have never had any problems of any kind, but i have new gaskets in the lid,graphitebox and safetyvalve, My English is not the best, but i hope you get it
Sorry,i forgot.I have one with Nazi control stamp and the year 1941 under the tank, that`s steel tank and appelgrün windshield.All my steel tanks are painted in silver color from the factory..I have wiktorin and Arara 37 also ww2, those have gray, or green tanks.
It would be difficult for a WWII stove to be a copy of a stove introduced in the 1950's. Don't believe the marketing hype that the 123 has been around for 100 years. The Optimus marketing team confused the stove with the brand.
Thank you for the details and history mg3442, nice stove and very informative. The heatshield on the Svea was used to help deflect/diffuse heat away from the tank to avoid overpressurization (run on Coleman fuel). These tanks get very hot even with the shield, and when running most users remove the key from the fuel control stem as it gets too hot as well. Perhaps that's one reason she was nicknamed "Barthelbombe", tendency to explode from prolonged use on high + inadequate ventilation/cooling. edit: lol Chef.
Thank you for answering, i`ve realised that if you keep the regulating key in plase when using the stove, it becomes very hot indeed I also discovered that if the rubbergasket in the safety valve is old it have a tendency to leak. I asume that if this occures in the field/ Frontline, and you can`t find a new one you get creative. If you then somehow blind the valve i asume an overheated tank vould exsplode with devestating forse. Same could posibly happen if you shield it to tightly. The one i use is so far working without any sign of overheating.
Here's a Radius 42 that appears to have had its SRV soldered shut (hot lead on vent hole) by previous user. Her tank is also bellied out (pregnant) from over pressurization, a likely result from the SRV being made non-functional. As mentioned in that thread, the user was lucky it didn't explode sending shrapnel and flaming fuel into her immediately surroundings. I've seen the same thing on Svea 123's and even the odd Kerosene stove If yours is leaking fuel (petrol/Coleman Fuel) from the SRV you'll need to take the cap apart and resolve it (new PIP and/or spring, etc) ASAP to avoid a bigger (and costly) problem. If you're using the leaking fuel from SRV as an example but not from your stove, then no worries and keep managing her like you're doing.
Hi, The Brits had a good small petrol/gasoline stove available in the 1930s: https://classiccampstoves.com/threads/12544 Best Regards, Kerophile
Thank you for the information, it really looks like they came close to big bang with that stove. Me i use to make new gaskets from 3mm siliconerubber and change graphite at least once a year. Better safe than sorry I have a couple of optimus 111`s for use in tents and so on, the Juwel i only use when backpacking on foot under the open sky. Some times i make cofee on it at home too, but keep close watch all the time. I am fascinated by the old German gasoline stoves, they are very compact and easy to maintain. May be i find myselves a Svea123 also, so i can compare them in the field. I am restoring one Wiktorin, and one Arara 37 also so i can use them in the summertime. They look very nice with original finnish and all, only need new gaskets and graphite. I have made new wicks from cotton tread for all of them I have one Arara 37 and one Wiktorin without original key, so if someone have one for sale i`ll be happy.The key for Wiktorin don`t fit Arara 37, vice versa it will work.
