Sealing chimneys

Postby SimonFJ » Sat Mar 21, 2009 9:20 pm

I am in the middle of renovating a Victorian property dated around 1880. There are seven fireplaces, all almost perfectly preserved, including the hearth, surrounds, tiles and cast iron 'bits'. At the top there is a hinged sheet of metal a couple of which are broken. When I opened these, in most cases a bucket full of dust and the occasional half a brick fell onto the hearth, presumably from where the previous owner had simply left them.

I would like to clean the existing fireplaces, including all the items set out above, but not use the fireplaces. To do this, what advice can you give in terms of blocking off the chimney which protects the chimney itself and avoids potential damp problems (which are prevalent elsewhere in the property) and ensures that I can enjoy these well preserved fireplaces?

Many thanks
Rank: Apprentice
Progress to next rank:
Posts: 5
Joined: Sat Mar 21, 2009 7:03 pm


Simply Build It

Postby stoneyboy » Sun Mar 22, 2009 4:35 pm

All the chimneys need trickle ventilation, replace the throat plates that are broken and wedge all of them in a partly open position (20mm gap on opening edge)
Rank: Project Manager
Posts: 2715
Joined: Wed Dec 10, 2008 6:44 pm

Postby rosebery » Sun Mar 22, 2009 7:49 pm

"To do this, what advice can you give in terms of blocking off the chimney"

Don't do it!

But seriously what you have collected is bits of chimney liner, soot, dirt etc of ages. That will continue to come down even after the chimney has been swept. You MUST keep the chimney ventilated or you WILL get damp issues.

Rank: Project Manager
Posts: 2022
Joined: Wed Sep 26, 2007 8:55 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


  • Related Topics