I've heard it called a "drip leg". May very possibly do
both?

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


"BobK207" wrote in message
...

MC-

As Paul posted, that has been my experience and how I have
done
installs but.........in my house the furnace has one, the
water water
& stove do not. Owned this house for 30 years & have had
no problems
with any of the gas appliances.

I wonder if the "dirt leg", as Paul calls it, is ancient
practice that
has no real value kinda like "air chambers" made of a foot
or so of
pipe.

I was told years ago that the "dirt leg" was really a
"condensate
trap" ...........

cheers
Bob