"Phillip944" wrote in message
oups.com...
I'll admit it... I've never soldered anything in my life. So, to
replace a corroded, leaky copper elbow joint, my father-in-law
instructed me to heat the pipe, pull off the old joint, then replace
it... after proper preparation, of course.

The problem is that I heated the old elbow, but nothing happened. I
heated the pipe & the elbow... nothing. Couldn't get it off.

Any suggestions would be greatly appreciated, as I dread the cost of
having a plumber do what seems to be a simple replacement.

I don't disagree with anything said, but...
Frequently it is easier to just cut the old crap out and solder a new
section in. Resoldering old parts can be very frustrating.
Since you can't get it apart anyhow...
but... unless you actually have water running in the pipe, MAP will get hot
enough even with a little residual water.