Need opinion on installation options to get proper draft

[spenceuiuc]

I am in the process of remodeling a breezeway room and plan to add a wood burning stove in the SW corner of the room (see attached image). I have the stove nearly picked, and am now looking at my options for venting/chimney. The stove is looking like it will be an Englander 13-NC, roof is pretty mild pitch (somewhere in the 3/12 to 5/12 range- will verify), the elevation where I live is 5,000ft.

However, when I got up in the attic, I realized that I have 3 closely spaced trusses running E-W along the south wall of the room. This has created problems for running the stove pipe + chimney. So I am considering two options to run the stove pipe + chimney:

1. Chimney through ceiling, with offset stove pipe to the side + front of stove
With clearances and without cutting the engineered trusses, a chimney through the ceiling/roof would protrude through the ceiling offset to the side and front of the stove. I think it would not look ideal.

2. Chimney through the wall
See example photo (not actual). While still not ideal from an aesthetic perspective, I think this method is more pleasing than the offset stove pipe extending to the front of the stove. But, I am concerned about draft issues with two 90s in the installation.

Beyond the 10-2-3 rule, I have a few questions:

• Does it matter if I use two 45s vs. two 90s to jog the stove pipe over the 10-20" to meet the chimney where it protrudes through the ceiling in Option 1?
  
• Better to put the jog near the ceiling or near the stove?
• For the through the wall Option 2, the chimney would go through the soffit- what have folks used to trim out clearance between the soffit and the chimney pipe?
• Which option is preferred from a functionality/cleaning/draft standpoint?
• Does the 15ft minimum chimney height have its bottom measured at the floor of the stove, or at a different elevation?
• Should I be considering a taller chimney for a higher elevation area?
• Any other particular issues to consider?

Thanks for all your help!
-Tony

 

[mitchell721]

45's are much less restrictive. So I would use those instead of 90s unless you decide to go out of the wall the obviously you will have a 90. The straighter the shot the better. When I did my install I ran into a situation simular to yours where I used 2 45's back to back which brought the pipe forward about 8 inches and allowed me to bypass the truss. I'm not sure if it matters where you put it but I put mine towards the top for looks. 15 ft is from the outlet of the stove normally

 

[begreen]

Do you know approximately how high the flue system will be from stove to cap? At 5000 ft it would be good to go a bit taller than the minimum 15ft that is specified for this stove to compensate for the higher altitude. For this reason I would not recommend going out the wall and then up. The 90 deg turns add resistance to draft. Also, note the R=2.0 hearth requirements for the stove unless it will be installed on a concrete slab.