I have a masonry chimney with what I believe is a slate slab on the top. It's not uncommon for there to be an icicle or two around the top opening of the flue for my woodstove. I figured it's the heat coming up the flue melting snow that is on top of the slab which then turns to ice as it runs down the chimney. Does that sound right?
My other thought was that the ice could be forming from the moisture being burned off the wood. I believe my wood is fairly dry although I do not have a moisture meter to check it. Most of it has been seasoned for 18 or 12 months and is split on the smaller side.
Then again moisture could be created by the hot air coming out of the flue meeting the very cold air outside and then form the ice.
Any thoughts on what the cause most likey is?
My other thought was that the ice could be forming from the moisture being burned off the wood. I believe my wood is fairly dry although I do not have a moisture meter to check it. Most of it has been seasoned for 18 or 12 months and is split on the smaller side.
Then again moisture could be created by the hot air coming out of the flue meeting the very cold air outside and then form the ice.
Any thoughts on what the cause most likey is?