Accessory Chimney Opening in Kitchen that is now closed off.

[jadz]

Hello everyone! My first post.

I have just purchased my first home which has a two flue chimney. I pan on putting an insert into the Fireplace, which is one one flue. The second flue is connected to the oil furnace in the basement, but also has a 'thimble' (?) opening in the kitchen which has since had a metal cap put on it. I assume this would have been for a kitchen stove at one point?

I am wondering what the proper way to seal up the opening would be?

 

[moondoggy]

i think what your asking about is called a flue stop. or at least that is the easiest way to do it:

http://www.sandhillwholesale.com/wo....html?osCsid=e976842dbe9aae1a73a0220d909506df

(broken link removed to http://www.acehardware.com/sm-imperial-flue-stop-bm0353--pi-1274074.html)

considering where it is, you may want to silicone it in.

for come extra work.. i'd probably cut a circile of sheetmetal, leaving 3-4 tabs to help wedge/attachit in closer to the furnace flue, then attach on of the above items for neatness.

 

[Corie]

Not to step on toes here, but there is a much better and safer product than those for this purpose.


(broken link removed to http://www.kschimney.com/store/product.php?pid=213)


Insert, tighten screw and the flue is sealed air-tight and insulated from the dwelling. Eliminates the need to furnace cement a flue stop in and is definitely going to seal better.

 

[moondoggy]

man, you can step on my toes any day. you the man.
(i was searching for something to answer his post, and bored at work, knew there had to be a better answer).

 

[jadz]

I was actually thinking that it might be good to block the opening to the thimble at the flue, as it currently acts as a bit of a shelf that debris can build up on (which after re-reading moondogs post is what he was suggesting too).

When I took of the cover that is there now (made of galvanized metal) there was some buildup in the opening.