On Thu, 29 Sep 2005 14:15:38 +0100, Peter
wrote:

I am looking for a supplier of a blowtorch head that is suitable for
connection to the low pressure gas mains as opposed to a propane tank.

Go for propane. Although you can get natural gas torches, and you can
ever get natural draught natural gas torches that don't need an air
blower, they're a pretty pathetic thing to try and use.

Propane is cheap and effective. Oxy-propane is even more fun.