So I finally have that nice double wall pipe I'd been dreaming of the past few seasons. I have a damper but not in the recommended spot. The way the pipe is designed, the damper is the first part coming out of the stove instead of 18" above. Anyway, I had a good fire going the other night and had a little too much wood in there. The temp started to rise rapidly even after I had closed off the air as much as the stove allowed. I turned the damper down to 1/2 open only to watch the temp climb instead of fall. Is that a natural short term response to blocking the gases from going up the flue, or am I not getting what a damper is supposed to accomplish? The probe thermometer is 18" above the stove. It was reading 600 at the time I was getting nervous. I had 200 more to go before hitting the red zone, but I know how quickly that can happen if you let the fire run too much before knocking it down.