After reading this forum for years, been looking to get a BK. Looking at their manuals, they depict in their clearances a 2 foot minimum vertical run before the stove pipe does a 90 degree into the wall. All of their stoves. Based on where my thimble is now, with the BK 30, all I can get is 16 inches. Moving the thimble higher (and re-doing the whole chimney) will negate this dream of mine, as it would be cheaper to add a second heat pump and ducting. Chimney installs start at 20k in my neck of the woods. To be clear, I'm talking about the part of the stove that goes up (vertical) then turns into the wall, through a thimble, then to my already existing double wall, insulated, SS chimney (that is not getting replaced). So how far away am I from a BK? I'm assuming an installer won't install if I can't get this clearance, nor can I get insured? I can easily meet, and exceed, by a far margin, all of the other clearance minimums, just not the minimum vertical run before it turns into the wall. Which is odd, as that specific clearance seems to be a manufacturer one, the clearance I see on every safety web site is 12" min before turning into the wall. I'm guessing BK has their own draft requirements, hence the length of the vertical run? Emphasizing that moving the chimney and the thimble has zero chance of ever happening, would require a structural engineer (knocking holes in load bearing exterior wall, and other permit requirements that would likely make it cheaper to build a new house!).