Jump to content

Recommended Posts

The pictures show a blackened masonry chimney with a glossy coating of creosote. There is a small step crack in the mortar.

The woodstove is a Vermont Castings airtight fireplace, which is the type that can operate with the doors open.

I suspect there has been a chimney fire, but the owner uses those chimney-cleaning presto logs to burn the soot out of the flue.

Could the soot and glaze be caused by those chimney cleaner logs?

Click to Enlarge
tn_2014514123616_Dscn5584.jpg

80.51 KB

Click to Enlarge
tn_2014514123655_Dscn5585.jpg

92.01 KB

Click to Enlarge
tn_2014514123734_Dscn5586.jpg

45.02 KB

Link to post
Share on other sites

I heat with only a stove. Haven't run the furnace in at least eight years.

I think most of what you're seeing is incidental. Looks pretty normal, and pretty clean, to me. I make a habit of having a chimney fire every day, to prevent real one from occurring.

Link to post
Share on other sites
  • 2 weeks later...

Need a level II inspection but it appears to be just 3rd degree glazed creosote with some wax build up from an improper installation and improper burning. Must have a listed liner. If you read the manual, I believe you will find that mfr. expressly forbids the use of manufactured wax logs. The log mfrs. usually expressly forbid burning more than one at a time, while often results in a cool flue which in turn leads to flue gas condensation= creosote formation and possible chimney fires.

That rain cap is rather restrictive but that crack has weakened that side of the chimney. It must be torn down to viable material and rebuilt then install an insulated listed liner with the listed rain termination and top support plate. The burn small hot fires using real cordwood less than 20% mc.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...