Have dry wood this year. Put a load in the Castine. Let the fire get going and started damping it down. Watched the secondaries flame up and continued damping down incrementally without putting out the secondaries. The temp. continued to go up. The stove was running at 700 degrees with the air closed all the way down. I felt powerless to do anything else as the air was already closed off. Should I be worried that the fire could continue to burn out of control to overfire with the air closed off?