installing an outside air kit

[Stephan in BC]

Ok, this must have been covered somewhere, but I can't seem to get a conclusive answer.

My stove has a 2" metal pipe protruding from the back for an optional cold air intake. I plan to hook this up. I have read that I can use 2" flexible aluminum duct for this. What I cannot find (it's not in my manual either), is if it also needs a proper wall thimble, or if I can just run it through like a dryer vent.

 

[bbfarm]

It does not get hot so you do not need a thimble

 

[St_Earl]

check to see if there is any connection you need to make inside the cabinet of the stove as well.
some stoves require a little plumbing to complete the direct air path connection.

if on the back side of that inlet pipe it just opens up into the cabinet, there is propably a connection to be made.

 

[Stephan in BC]

Ok thanks guys. I'll check on the hookup behind the stove.

 

[heat seeker]

Mine just runs out through the wall - no thimble.

 

[LordmetalZ28]

I ran pre heater hose from advance auto parts in mine 6$ and it connects to exhaust manifolds so you know it does well with heat. I measured the diameter and cut a hole in the lower corner of my thimble outside of the space the flu pipe travels thru. Came out very nice

 

[bogieb]

Like the others said, no thimble needed. I have a dual-use thimble for the St. Croix (thimble has a separate opening for the OAK, but I installed a separate OAK for the Harman and it just has a plate on either side of the plywood (it runs thru a where a small window was in the basement concrete wall). Those plates are only to help hold everything in place as it goes out plus the outer plate has a small screen in it to keep out rodents (very important - don't want mice or chipmunks to build a nest in the pipe during summer!)

 

[St_Earl]

mine is placed high enough on the exterior so as not to become blocked by (most) snow drifts.
definitely keep that in mind and/or pay close attention to the vent if it has to be placed lower than is optimum.