Blaze King Ashford and flue height

[ridemgis]

I’ve been burning a Hearthstone Heritage since 2012 and am now thinking of switching to a cat stove for longer burns and lower heat output. I really like the soft heat of the soapstone so I’ve been leaning toward a hearthstone green mountain. On the other hand, the Ashford has a solid track record. I have about 23 feet of double-wall and insulated flue running straight up through the house. Should I be concerned about excessive draft with the Ashford? Or the GM? I do have a key damper but not sure if it’ll be enough to reduce draft for the Ashford.

 

[stoveliker]

23 feet won't be a problem. I'm not sure you'll even need a damper. But you have one, don't take it out - it gives extra tuning capability.
But I strongly suspect it'll work fine.
Note that the chimney height in the manual is a *minimum* height.
If you get above 25 ft straight up, you'll likely need a damper.

 

[Highbeam]

Those who have measured their draft have found that it is actually quite easy to exceed the high limit with chimneys much taller than the minimum. I agree, leave the key damper in the stack.