I dont know if there is anything that can be done. I installed my Quad castile (no oak) and it works beutifully. However after letting it burn a little over the weekend my wife and he super sniffer says it smells "like a fireplace" during the week when not running. I did do a mild cleaning afterwards getting rid of whatever little ash was in the fire box. Maybe this is just the smell that will go long w a wood burning apliance. All gaskets look good. Would an oak help? No smell when running..