By way of a report back on the Rothenburger Rofire....it is a much sturdier outting than the chef's torch I got with the gasvap kit.....as you say BKplayer....a bit more expensive than the torch you mentioned...but it it feels solid....and more like a working tool than a kitchen item.
The nozzle (which is solid brass and removable) fitted the vap perfectly as was expecting at 22mm.....and although it is a little fierce it is adjustable right down to a smaller flame....it uses a standard 7/16 screw thread so will screw onto the standard butane canister.......all in all for £27.50 I reckon it's a pretty tough bit of kit.....and if it lasts as long as my plumbing torch (a different Rothenburger) I will be well happy.
The cannisters are more expensive from Screwfix...but as you and others have said.....cheaper 7/16ths screw on cans can be bought elsewhere that should fit straight on.
... anyway folks..... that's just my 2p worth....I thought I'd share my thoughts
