Re: Covering old stovepipe hole
If there is any chance at all that the chimney will ever be reused as a chimney (such as opening a hole somewhere else to put a stovepipe), then a patch such as this MUST be done with that in mind to preserve the integrity of the chimney.
However, a chimney as old as your probably will never be suitable for use as a chimney without the installation of a chimney liner, in which case the patch isn't as critical.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.