bogydave said:Roughly 3 years is the life of a new combustor. If you abused it, probably shorter.
If you put the new one & & it does a better job we'll all know what to watch for when a cat starts becoming in efficient.
You're having doubts that the one in the stove is good.
I say go for it, install the new one & let us know the results. Gonna need a new one either way soon enough.
You have everything ready to go now. Start the clock, 10k to 12 k hrs it will be getting time to replace it again.
Im not sure its only 3 years, the one in my BK is warrantied for 6 years on a pro rated basis.