On 11 May 2007 03:22:43 -0700, wrote:

The main disadvantage is that you won't be able to solder with the hot
air gun.
That's what I thought - I got the impression that's it's do-able when
reading about steinel heat guns:
http://www.engineeringlab.com/steinelheatgun.html
In the middle of the page they show a picture of soldering copper
pipes with their heat gun.

That's because it's a professional heat gun designed to solder pipe
and the price reflects this. From the picture it would still take an
ice age to solder 28mm pipe with the thing.