butane/propane in a butane torch

[jime17]

Hi all,

Anyone got an educated opinion in using a butane/propane mix cartridge in my blowtorch?

It came with a butane only cannister and is now running out, but can only seem to find B/P mix readilly available.

As an aside, any thoughts on using butane to solder copper pipes?

I've used it before and not seemed to have a problem, but several people have voiced their opinion that butane wouldnt be hot enough on its own?

Slightly puzzled.

cheers,

jim

 

[ChrisR]

Butane alone IS hot enough, no problem.
I once tried the mix on a torch which would now be very old, without much problem. Iirc it had to be on less than full or the flame would lift.
The snag with most butane (cheap) torches is that they flare easily if you tip them downwards.

 

[jime17]

thanks chris. I'll try with the flame on a lower setting.

I had horrible visions of the flame being so hot it melted the nozzle and ended iwth a big fireball!