from Waterford, CT asked:
December 20, 2017
I see that there are 6 and 8 inch insul-plugs. I have an old chimney with a 7 inch hole. Do you have the intermediate size?
We do not have a 7" plug and you would most likely have to either shave down the ceramic sleeve on the 8" or fabricate something on your end.
on December 20, 2017