If only as a safety feature, I think that stoves should be able to shut off the air supply altogether. Another purpose would be to keep warm room air from going up the flue when the stove is not in use. I understand that the stove should not be operated with too great a restriction on air supply, but perhaps there could be another control, or some safety lock that must be flipped out of the way to damp it all the way down. Last night I loaded a big log of willow into the stove as the over-nighter. It was so light that I was sure it would not last long, but let it be for a while. Being a master at wasting time near bed time, I came back to the stove almost an hour later and decided to top it off with about a ten 4x4x3/4" oak scraps from the wood shop, then damped down the stove for the night and went to bed. About 15 minutes later - BOOM! It sounded like someone hit the firebox with a wodden mallet. A burning wooden mallet. The stove was up to 900F and the glass was really clean, at least the upper part, while the lower part turned black. The stove was already damped all the way down, so I scrambled to make an aluminum foil block off for the intake, which is at the bottom front of my Lopi Answer. It worked well enough to quiet the flames down to a smolder. I plugged in my make-shift half-fast computer fan blower to help cool the stove and heat the house. I had to baby-sit the stove for another half-hour until the oak scraps burned up so I could take off the home-made choke. It would have been so much easier to control if there were a positive air supply cut-off. Be careful with those kiln-dried scraps! I've burned bunches of 1" sticks with no problem, but the small dry stuff goes fast & hot!