"Edwin Pawlowski" wrote in message
news:Jmsef.2581$Rb.688@trndny01...

"Robertm" wrote in message
...
I'm using the gasket supplied by Empire, their part number 712098. The
local serviceman who is an Empire dealer said, "Oh those things don't
last" and he threw it away. I asked him if it would be ok without the
gasket and he said yes, but of course, it isn't ok because it leaves a
space of about 1/16 of an inch between the inspection window and the
firebox.

Bob

I've not seen what you have so I can't give a perfect answer, but there
are many types of insulation that may work. For wood burning stoves there
is a braided rope that fits in a groove. For boilers and heaters there is
stuff on a roll, about 1 inch wide that you can configure as needed.
Worth checking into.

The only thing the hardware store has is high temperature gasket material
for automotive use such as oil pan gasket. Do you think it'll work on a
furnace firebox? Lacking a thermocouple I can't tell how hot the firebox
gets at that point.

Bob