On Wed, 5 Jan 2005 15:48:43 -0600, effi wrote:
on garbage disposal lives:

some say running hot water through a garbage disposal while it is running
prematurely ages it (heat is an enemy to electric motors), as the primary
cooling force on a disposal in operation can be cold water running through
it

some on this discussion group argue that can't be

thermodynamics seems to support the former

Thermodynamics support that cold water and hot water aren't very different.
Don't forget that temperatures aren't compared to 0F, but to 0K which is
-459F.

Unless your hot water is at the point of turning to steam, you have
nothing to worry about.

Disposals simply don't get that hot for the temperature of the lubricating
water to matter.