On Wednesday, May 22, 2019 at 2:08:00 PM UTC+2, Andy Burns wrote:
Adam Funk wrote:

I've been using a late relative's spare blowtorch

When I used it last week, I had occasional problems with it: switching
between "neat blue flame" & "orange flamethrower"

often means it needs warming up a bit before you start waving it around

+1. Waiting a few minutes before cranking it up to full flow seems to fix the problem frequently.

Tim