The Bernzomatic 7000 is for Mapp or Propane, and with Mapp, I had no problem sweating 3" Copper joints. I have a TS4000 torch that came in a kit with a MAPP tank that I bought at the Orange Box Store , and I have used it without problems with propane too. I am not a plumber by trade, so it works fine for what I need it for. As far as it being good quality, I always thought it was, but the other day I used it outside to thaw some iced up rain gutters, and some water dripped into it and the igniter does not work any more. Maybe it will again when it dries out? I guess the Pietzo crystal unit was not designed to get wet.
Thanks HJ. It was a few days ago that my torch got wet. When I tried it today, I guess it dried out enough to spark and light the torch. Since they started selling the little MAPP tanks at the hardware stores, I have not bought any propane for my torch(es). I do buy the camping size little chubby tanks for my camping Weber Q Barbeque though. I only mentioned that propane works with this torch for the benefit of the OP SAVROOM
The 2 little 14.1 ounce tanks I have are both labeled " MAP PRO". I had no problem sweating 3 inch copper to cast brass tees when I worked on the last stack I did a couple of years ago. Many years ago ~40 or so, I used an MC tank with a turbo-torch (is that the correct name?) to do some work, and that was super hot, Back then I had to melt out the lead from a 3 inch cast iron stack to re-configure it, and not break up the fittings so I could reuse them. Its not my line of work back then or now, but when things need to get done,....................Also had full size Oxy Acetylene cutting/welding with cart and tanks in the late 70's, but got sold them years ago before I blew myself up.
Older tanks I had bought years ago were MAPP, but as HJ says, no more. a quote from Wikipedia, which is not necessarily all that trustworthy, but this is correct: "Current products labeled "MAPP" are in fact MAPP substitutes. These versions are stabilized liquefied petroleum gas (LPG) with high levels of propylene."
This is awkward, but...
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