I don't engage mine too quick I always worry if there is too much moisture ?? I know any left over moisture gasses off quick. This is all wood that's been CSS for 2.5 years at least and all under 20%
This is a great thread. I'm thinking that the cat cleaning with vacuum cleaner and brush only gets off the fly ash from the cell entrance & exits. This could leave some fly ash covering the catalyst precious metal coating covered in the middle, so the smoke doesn't get to the platinum. That's why a mild 50/50 vinegar-water wash (I spray not bath) clears out any ash or unburnt creo from the cell middles. Then a rinse with tap water then distilled. It has always woke up the cat noticeably but I agree once or twice a season max. EDIT: Also, I wonder if it would be prudent to bypass the cat (on the IS you slide the cat sled out of the exhaust stream - other stoves open the bypass door) once the fuel is into coal stage. This is because the cat is really no longer needed or active and the ash-laden exhaust stream won't go through the cat.
I'm thinking that any fly ash that floats into the interior should just blow right out. I'm more worried about un-burned creo that eventually gets burned; I'd think that ash would be more likely to stick. That's why I like to get the stove pretty hot before I close the bypass; I want that cat burning hot as soon as I close the bypass to avoid creo deposits inside of it. That said, I don't like burning "poppy" wood like Sassafrass. Seems like that would stir up more fly ash. I do burn Cherry, though, and that stuff will pop a bit. I use strictly distilled water to rinse. It's cheap, and I don't want to take a chance with tap water, even if I'm rinsing after that with distilled. I haven't tried the rinse yet, been simmering the cat and double-rinsing. I've only been doing it once every couple years. http://www.condar.com/combustorcleaningmanual.pdf Yep, white (distilled) vinegar.
Even if you close it earlier and cat slowly climbs up to temp then jumps up. It's still burning 1300+ for me usually 1500to1700 on a moderate fire. That's sure hot enough to burn any creosote off the cat I would think.
Agreed, but I think that fly ash would blow out easily whereas creo that was stuck inside and then burned, the ash might not blow out, it might stick.
I really can see not reason for bypassing the cat at the end of the burn. For sure in some stoves, like our Fireview, if we bypass the cat then we would also lose a lot of heat that would simply go right up the chimney but forcing it through the cat keeps the heat in the house rather than the chimney.