When I was more actively doing HVAC, we had metal parts
called "stand offs".

The other suggestion to use copper tubing sounds right.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


wrote in message
...
I installed a humidifier recently on my furnace. All
mechanicals are
in a small closet, and the only way that the overflow tubing
(3/8 ID
vinyl tubing) can be routed to the drain is over the furnace
flue - so
gravity pulls the tubing into contact with the flue. Since
this gets
really hot (hot enough to melt the pipe wrap insulation I
tried), I
need a method to keep the tubing from melting. Any ideas?
I'd like
to avoid having to purchase and use mineral wool since I
only need a
tiny bit and that stuff is pretty nasty. Extra points for
original
ideas! Thanks everyone.