Don't wait until the last minute.

It may be a good idea to do your maintenance before the burning season begins again.  Don't wait until it gets cold outside this coming fall.
It's important to remember the combustor in your catalytic appliance is your heat source, not the firebox temperature.

If it is necessary to replace the combustor, I strongly recommend calling the friendly sales people at Applied Ceramics Inc. 
They will give you expert advice and the best prices you can find anywhere.

The right catalytic combustor is very important to the wood burning appliance's efficiency.  Applied Ceramics Inc. has them all.