"TURTLE" wrote in message
...

There is something wrong here for I'm thinking of the feed back through
the
other dead thermostat when it tring to close connection for it to run with
the
24 volt voltage also. The 24 volts will try to back up through the off
themostat
unless he could turn it off when the other one was the master.

TURTLE



With using two stats, depending on the stat you may get by switching the red
only. If that fails a mutiple pole double pole switch would not be hard to
find. Typical home stat you would only need to switch the Y, G, and W wires.
Heat pump is probably out of the question!
Two stats would probably be the simple cheap way to go, depending on his
system.
If money is no object, well then that is another story! Endless options in
controls, at least untill the money runs out!
Greg