Bill's stronger than he realizes. Having just carried this dude up the stairs (pausing for rest between each two steps), I'd say double that weight before packing -- and it would need a crate as the plastic outers aren't all that robust. It's on wheels for a good reason. It's a mid output thing, it will loaf doing small stuff, and struggle doing anything big.
Here's a couple of pix with it hooked to a large glass blowing torch (just like the one Jerry recently scored -- ours wasn't labeled, so we used the info from Jerry to know how to hook it up, thanks!)
Without oxygen -- this shows the most propane you can use and still get to an oxidizing flame with the oxygen maxed out:
- No oxygen, center burner only fed gas
And here it is with the output at the max 5 L/M or so. The camera didn't quite get the inner cone, but this is a noisy oxidizing flame with the middle cone about 3/4" long and about 1/8" diameter.
- At full crank with just burner center fed
This is a much bigger and hotter flame than I used to make the glass/metal seal shown sitting on the brick with a tig rod as the conductor and very thick wall 1/2" pyrex tube. Just that center flame alone (and with the nice stable base) is going to be a happy plenty for the glass blowing I'm doing so far -- it will mostly be running between 1/2 and 1/4 this.
There's not enough output to quite run the bigger outer part of this burner off it, unless you just want a pretty small flame there. For grins, I tried a propane/air mix for the outer burner, but the orifices are too small for that, and the flame easily blows off before you get much of anything. It might be that a faster burning gas than propane would work with air there, but I've not tried that so far. Does MAPP burn faster than propane, or should I be looking at acetylene or hydrogen for that (in air)? Or perhaps I should just run this into the air blower intake and get "enriched air" for both...might work out great? I am using a sleep apnea air machine for my air, also found by Bill -- it's very smooth and very-very quiet.
Of course, just for fun, I also tried this on some small bench burners designed for gas and air -- it's a great way to make very loud popping noises - they really need air, not pure oxygen -- but a blend might work out.
This thing is loafing at 1.5 L/M on my homebrew point torch with the torch maxed out (someone should mass produce those, they're very nice). That torch uses a MIG tip, about .030" hole, as a gas torch tip - it just happens to have the perfect inside nozzle angle for this as well as for the original wire feeding use. It's just screwed into a hole in a steel block, with the gas and oxygen coming into the cavity just below it for mixing, with a couple needle valves for control. What's nice about that is that MIG tips define "dirt cheap" and are available in several sizes, all with the same threads - so rather than pay say McMaster's $175 for a mini torch -- you can make one pretty easily. Up till just now, that and a mapp gas regular bernz-0-matic propane torch are all I use for pyrex and anything lesser. For quartz, as soon as its bigger than about 1/4" tubing I have to go to the big oxy-acetylene guy, which is like going from "not enough" to "way overkill" even with a small tip and low gas/oxy feeds. Mark says they don't let him use acetylene as there are contamination issues, though I've not noticed that, so he does all his work with hydrogen. It's a little hotter, but fewer btus than acetylene.
Posting as just me, not as the forum owner. Everything I say is "in my opinion" and YMMV -- which should go for everyone without saying.