On Wed, 18 Aug 2010 19:40:11 -0400, mm wrote:
On Wed, 18 Aug 2010 18:58:37 -0400, wrote:

On Wed, 18 Aug 2010 01:12:13 -0400, mm
wrote:

On Tue, 17 Aug 2010 19:36:14 -0600, Uno wrote:

I just was cleaning my water heater and see the exhaust pipe on it has
come loose in the middle. Can I just duct tape it for now and not
expect it to melt?

I don't know what you can and can't expect, but I would expect it to
melt.

Use foil tape meant for that purpose.

AKA "Duct tape" - not "duck tape" which is what the cloth stuff is
ACTUALLY - originally made of "cotton duck" - a type of cloth

Others said what I just did more strongly, so let me put it another
way.

You're thinking of the difference between duct tape and duct tape, a
worthwhile distinction, but neither of them is the tape for exhaust
pipes. That is metal foil tape.

The foil made for exhaust pipes doesn't work worth a damn. The
flexing caused by the pressure waves of the exhaust quickly cause the
tape to fatigue and rip. I've never heard of such a patch lasting a
whole month.