Hi All. I know there is a sister site, but it feels a bit weird going there. I have been avoiding stoves as enough junk is collecting in my garage. Today I was given this. It's a Primus 745 date stamped Z. It looks pretty much unused except for the home made pre-heater cup. One is a Svea, and what I am wondering is what kind of gasket is required at the burner head? I have some 0.1mm copper. Would that be ok?
Very interesting find. I think you will find that the date code is the letter under the word Sweden. It looks like an E or an F. I don't know what the Z could be.
Thanks Nils. That makes it even more interesting. 1915? Long time between then and now. Can't imagine it's been sitting in that old shed for more than 100 years.
@MarkC The date stamp is F, making it 1916. Great stoves, but in a camping context, best for cooking a few cray fish . You are lucky to have all of the flame rings. Are they marked? Cheers Tony
Flame rings are all there. Steel and Primus stamped. Really look like it has been hardly used. The tank will take 3.5L of fuel!
How come? You’d be very welcome there. Copper washers to seal burners won’t work well, they’ll leak pressurised fuel. A set of heat-resistant fibre washers from site sponsor The Fettlebox are what’s needed. A great project you have there. Originally intended to heat large quantities of water - for baths and suchlike - I use something similar for wok cookery. Stir-fry ingredients are seared as they should be and not steamed and soggy as happens on a lesser flame.
A very interesting post and to me, an unusual stove. I would think that it would need frequent pumping to keep her going, not to mention the fuel consumption ....... but hey, it's designed for a specific task. Thank you for sharing Pete
Not the case in fact. The pump tube is longer than that in a 2-pint stove or smaller-capacity stove. Four times greater fuel consumption than a 2-pinter, true.
We don't bite y'know I have a later 745, the type with the joined-up spirit-cups. My original flame rings are gone but I use sections of exhaust tubing of the same diameter Great stove, I use it as a water-boiler for group events or whenever I need to heat large quantities of water in general (It's better mannered in polite company than a Hydra Burner ). Alec.
These were designed for lab work I think, things like sterilisation... at least that's what I read. I've got the 4 burner version but someone has replaced two of the burners with silent, camping style burners and 'rocket' burners are very hard to come by! If anyone has a couple of spare rocket burners I'd definitely be interested. Either that or I'd happily swap the whole thing for a lantern of some sort - just a thought.
A very nice find. An old one too. Once its working, that's gonna look like a five-nozzled rocket thruster? Wow! I find that most roarer type burners have heat-resistant fibre gaskets. I'm not a stovie but I do keep a few just in case I turn into one.
I have some parts coming from Conny at fogas.se so hopefully will light it up soon. It will come in handy if i suddenly need to boil 200 eggs, make a hogshead of tea or perhaps fry a couple of turkeys. I can see a lot of the crew here are also over at the sister site. Hopefully there you can help with some questions I have.
Hi @presscall , can you give me the dimensions of the diffusers, as well as the diameter, the number of holes and their height from the base? I've a four burners Azurea stove. Thanks in advance.
@Sellig33 Because manufacturers don’t follow another’s product dimensions, these Svea items wouldn’t necessarily fit your Azurea burners, but here goes … Height of flame tube’s top rim above top of burner. I’ve never seen flame tubes on other stove/furnaces with those holes around the lower circumference. They’re not necessary for combustion and later Svea furnace flame rings don’t have them. There are eight holes of 5mm diameter.
