Propane up to about 1" Mapp 2"
Up to what size standard copper pipe can a regular Bernz-O-Matic propane torch work? How about the Bernz-O-Matic with MAPP?
If you are just talking about the very simple DIY plumber's soldering kit that they sell...the one with torch that's basically just a nozzle...I wouldn't bother trying to solder anything over 3/4" with that thing while using propane!
I'm not sure what you consider the DIY soldering kit, but I think what I have would be considered that.
I think I have a BernzOMatic TS4000
I might have the TS7000 or TS8000 though. I'll have to go look later.
They're shown on this page... http://bernzomatic.com/PRODUCTS/TORC...0/Default.aspx
Anything over 3/4" seems to take a long time with one of these torches. I've used a small patch of fiberglass insulation to insulate the other side of the copper while heating to help the copper retain heat on larger pipe. If it's all you've got, you can probably do 1" fine. Bigger will be tough.
Unless I have to carry it up 3 or 4 flights of steps, I'll bring an acetylene torch for anything 1" or bigger.
Pencil flames are useless for anything other than the smaller sizes. They have insufficient heat, and it is concentrated in a very small area. Larger sizes of copper need a large "brush" flame so it heats a big section of the pipe quickly.