posted 4 hours ago
Well, as Austin stated, the metal is going to deteriorate quickly.
The design is faulty.
The hunk of wood you have in the feed tube is way too large for a cold stove.
What you have there is a K-tube. Known to be a poor performer. (They like to burn backward up the K-feed tube)
The extra air intake at the bottom is allowing too much air.
Why should it pull air down through your feed tube when it has a convenient alternative?
If you want this to work for a while, I see two options. Seal up the bottom air intake and let the air flow over your wood, not under it.
Or close off the angled intake and run this like an L-Tube.
If you plan to build a masonry stove in the future, start by assembling a proper brick J-Tube.
That metal K-L Tube is going to burn you unexpectedly, and it will not last.
Oh, and close off the extra holes you made; they really are not helping.
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