"Robertm" wrote in message
...
I have an Empire 15,000 BTU direct vent heater. The gasket at the
inspection window lasts only a short time and then fumes are vented to the
room instead of outside. Would furnace cement work just as well? How
difficult would it be to get it apart if the pilot needed to be relighted?
The heater has one of those piezo ignitors but due to faulty design or
manufacture, it never worked so the inspection window must be opened to
relight the pilot with a match. Is there a longer lasting material that I
could cut for a gasket?

Bob

What are you using for gasket? They should last a very long time.

No, don't use furnace cement.