Add five feet of interior chimney?

[jotul?]

I have been pricing chimney pipe packages (forever, it seems like) and came upon a question. My wife doesn't want to see any chimney pipe on my F600 install so I am planning to go directly out the rear of the unit through the wall. However, I have full 8 foot ceilings in in my downstairs and if I were to top vent, I could add 4.5 to 5 feet of interior chimney before making a 90 degree out through the thimble and then extending up the second story past the peak of the roof. My question is this; would adding this amount of interior chimney ( about 1/3 the total height) make a difference in heat transfer and/or efficiency? A difference worth worrying about anyway?

 

[valley ranch]

Greetings, Now, I've heard, you're going to want three times the hight of your horizontal run. Where will that take your pipe in relationship to your roof?You may have good draft with less but that is or was kind of a rule.
Will your chimney be 2' higher than the nearest point 5' away?

It can be done. I found your thread because I may be installing a chimney in a rental also through the wall, I won't be travelling that distant horizontally.

Good luck with it. please show us how you do it.

Richard

 

[begreen]

I strongly lean toward the second option. A 4ft vertical rise is going to help draft, particularly in mild weather. Also, by raising the thimble you are not locked into a fixed height for the stove exit. If you want to swap out at some point with a different model it will be much easier with the higher thimble.

 

[valley ranch]

Hi,Misread your post completely. I got the impression you were kicking out 4'-5' horizontally.

I agree, going up the distance you mentioned before going through the wall will be much better.

Richard

 

[BrotherBart]

How ya gonna get past the wife factor with pipe in the room?

 

[begreen]

Turn off the furnace.

 

[valley ranch]

That's good, wish I'd said that.

 

[webby3650]

If going up 4' then exiting the wall is acceptable to the wife, why not just keep going straight up? This would be ideal, more efficient, with less maintenance involved. Therefore, it wouldn't even be open for discussion in my house. Guess I must have it pretty easy?

 

[BrotherBart]

If going up 4' then exiting the wall is acceptable to the wife, why not just keep going straight up?

Two story house. Would have to poke it through the upstairs.

 

[webby3650]

Two story house. Would have to poke it through the upstairs.

We do it all the time!

 

[BrotherBart]

If she doesn't want any pipe in the downstairs, imagine how fond she would be of it running through the upstairs.

 

[webby3650]

If she doesn't want any pipe in the downstairs, imagine how fond she would be of it running through the upstairs.

You're right, hanging off the side of the house is much better.