http://www.toolstation.com/search.ht...hstr=blow+lamp

The very one I use.

Which one please as the link gives (for me) 3 different blowlamps?

Also, as I am a novice with soldering plumbing, can you give me a rough
guide as to how many joints a cylinder should do in (say) 22mm pipe? (I
shall apply my own divide-by-3 'cos I'll need to practice factor -
unless 3 is not enough.)

--
Robin