In the middle of the night, my Ideal Steel wood stove falls below the stove top thermometer's (blackened) 250F minimum recommended temperature range. If I know that it will be 210F or so when I wake up at 3AM to refill it, can I leave the catalyst engaged while I sleep? Read on a different forum that all of the stuff that might clog the catalyst has been baked off by then and it would be OK. Do I have the leave the catalyst non-engaged because it will fall below 250F while I sleep?