Consumables In Non-Cat Stoves

VC Dutchwest non-cat has no "consumables". All firebrick and the components of the everburn system are covered by the lifetime warrantee. There is a white fibrous material at the bottom of the secondary burn chamber (I think its some kind of ceramic filament?) that is not supposed to be handled roughly - but the only time you could possibly even touch it is when you have the flue disconnected and you are reaching down in there with a vacuum cleaner to clean it. There is no "blanket" material or burn tubes.

My friend just got a quadrafire isle royale. Also no blanket as mentioned already, but does have the burn tubes at the top - they look very strong and it would seem difficult to bang them when loading. One thing I noticed was that stove came with a label saying it had a 72.8% efficiency rating (very nice).

Maybe the newer ones, but the last one, about 4 years ago, had a mechanically induced raised nipple on the tube that was supposed to hold it in. Did not work very well. The whole setup is rather loose fitting, I guess to compensate for expansion.