Stove Pipe Diameter - Maintain 6" or increase from 6 to 8"?

[Spafford]

Hi, I am installing a 'new' woodstove with a 6" flu pipe and will run 6" pipe to the ceiling, and then use an adapter to increase the diameter to 8" triple wall. Can I improve the draft by running 6" pipe all the way to the chimney cap? Thanks!

 

[jeff_t]

Is the 8" already in place?

 

[Heatsource]

yes, a 6" liner inside the 8" class a should slightly improve draft, but is usually not needed

 

[Spafford]

Is the 8" already in place?

Yes, the 8" is already in place.

 

[jeff_t]

How tall is it?

I'd try it anyway. If it doesn't work, you're only out the cost of an adapter.

 

[Spafford]

How tall is it?

I'd try it anyway. If it doesn't work, you're only out the cost of an adapter.

The length of pipe above and below the ceiling is about 6 to 8 feet.

 

[mellow]

How many feet of chimney does the manual say you need for your new stove? Sounds like you are right around or below the minimum height for most stoves.

If it were me I would try running it with the 6" to 8" adapter and see what kind of draft you get first, then line with 6" if it does not draft correctly.