"Peter" wrote in message
...
Assuming the OP didn't mean blowtorch but just some sort of torch, one
can
get brazing torches which are suitable for NG or LPG from (eg):

Yes, my mistake, just a reasonably direction and hand held torch that
does not need an air supply tube and/or air pump. I am just looking
for something I can connect to a natural gas supply bench tap.

Thanks for the FlameFast link, the nearest they supply is the pencil
torch, however, it is produces a flame rather to fine for my needs.

Yes it's the no air requirement that gets you. LPG supplies are higher
pressure and can suck in enough air to work. To use NG you need pressured
air to produce the right mix to do anything. Most small lab- based brazing
set ups run off bench gas taps but have a compressed air supply as well. You
could buy a compressor of course but a propane cylinder may be better. If
you haven't got one, the cheapest way of getting one is to "liberate" one
from the nearest tip (assuming they have an area for dumping them) and then
go and get it refilled. That way you only pay for the refill. Naturally I
would never do this as, in theory, they belong to the tip operators and it
would be thieving but I have heard of it being done.


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not)