After cleaning, check the seals and re-tighten joints in the flue and to the stove. Buildup of creosote on the flue walls can re-ignite and cause fires. Tight seals and joints prevent leaks. DO replace firebrick and other insulating materials when you see crumbling or if pieces are missing. The stove will be less efficient and more expensive to operate.
Thermostats control either primary or secondary air, or both.
Tampering may ruin the precisely designed secondary combustion capabilities, resulting in lower efficiencies, higher operating costs, and greater pollution. DO NOT abuse your catalyst. Don't clean the catalyst with water when it is hot and in the stove.