What is the warranty on the cat? What is the cost of replacement?
That sounds like your standard "cat stove marketing guarantee;" A one-shot deal offered by the stove maker for the first cat only, so that potential buyers who have heard bad things about cats, may be enticed to jump in. I believe that cats bought after that would revert to the cat maker's standard pro-rated warranty.the warranty states 20 years for the cat. I'm not sure about cost replacement as I haven't asked my dealer.
It remains to be seen how this different cat system (low restriction, full time burning even on startup) will work out in the long run, how long the cats will last, etc. I'm not sure how long some of these new cat stoves were tested before they were put on the market. A couple, such as Regency, have been out for a few years already, but I think those may be far out-numbered by the relatively untested ones..
That said, up 'til now I've never called in a warranty on a cat; I've figured that I've gotten the rated hours of life and my money's worth out of them. Hopefully that holds true for some of these new designs that they came out with to meet 2020 regs.
Yeah, I think that has been true for a long time. They aren't burning <20% wood like some of us do. I'm not sure how that would affect the EPA numbers. Also makes you wonder about the parameters of the tests run by the stove makers themselves, and the numbers they publish in their brochures..Interesting to note that some of the test fuel (dimensional lumber) had a moisture content as high as 25%.