Greetings and pipe run question

[osagebow]

Hi Y'all, John from Western VA here....

Making the switch from a pellet stove to a wood stove. I have a 20' or so chimney with a rectangular (11" x 7" I think) tile lined chimney with a 6" wall thimble. The thimble will only be about 3 feet above the pipe coming from the top of my new wood stove. I've read that two 45 degree bends are better than a 90, but will having such a a short vertical run be a problem for draft if the run is angled due to a 45 at the stove and one on the thimble? I plan on using selkirk double wall pipe with either a 90 and a 3 foot piece, or 2 45's and a 3 foot piece.

Thanks for help on this and many future Q's

John

 

[Waulie]

Welcome!

You will definitely be better off with two 45s. Many people will likely chime in that your 7X11 flue won't work with a modern, 6" outlet stove (assuming it will be 6"). It certainly is at the high end and you might want to line your flue in the future, but I would try it first. My dad is running an EPA stove with a 6" outlet in a 7X11" flue about 25 feet high and it is working well for him. Your success will depend on the stove. So, what stove?

 

[osagebow]

Thanks Waulie - let me add that the chimney measurement is total - I take it in this case a smaller chimney is better because of the large diameter?

Have a VGang Durango ordered -

My stove choice hinged on needing a slender, low emission EPA stove with roughly the dimensions of an old "logwood" type because of a the door near the install that joins the finished / unfinished basement areas, and of course price. I also want to be able to burn longer pieces, and it can do 26" . I realize the 12 hour burn claim is probably overblown but I'll be happy with 8.

My Englander PDVC25 pellet stove is there now, and is a little expensive to run, but does a good job. I want more side clearance when i go to the woodstove.

Can i infer anything from the pellet stove's draft characteristics? (....should have put that in thread first....sorry!) it does well but sometimes dies on it's lowest setting in crazy wind conditions.

 

[sticks]

to me it is not so much that a 7 X 11 chimney wont work it is just that they are the cause of a lot of draft issues. There are certinatly a bunch of the them out there. Brick masons think they are a universal chimney. They are even worse on an outside wall (of course that is the same with all chimneys ). Getting something with a by-pass damper will help. Except for a non-cat dutchwest