Well I guess late is better than never. What I ended up doing was purchase an expandable pipe seal. These are used for water, oil, other liquids to temporarily or permanently close off a pipe internally. This way the pipe is closed off to water that will come down the chimney I no longer use...
I could use some ideas on how I might seal up a pipe that goes through one of the walls in my house. The previous owner added an external chimney for a wood burning stove. The connection through the wall is some type of clay pipe, and has an inside diameter of 8-11/32", or about 8.340". What I...