I appreciate everyones help.

He did not get a permit. It wasn't until after installation that we
found out one was required.

He now knows he should have had one before doing anything. Is it too
late to get a permit now? He wants to get the permit and have the
installation inspected. Will they find out the heater was installed
without a permit and issue a fine?

in order to replace the valve, the outside gas must be turned off, and
he'd have to make some cuts in the pipe. He won't do this until we have
a permit.

I don't think there is a leak, but not taking any chances.The gas is
provided by the local utilities department. On their web page there is
a number to call if you suspect a leak. If they come out, what happens?


James