Maybe so. The diesel-foils seemed to start dropping in performance after three or so years, on my SIL's anyway. My diesel has been swapped back and forth with the ceramic, so it's hard to say how many hours it actually has. I haven't tried a Dura yet, but I have one coming.With a 10 year warranty from BK perhaps these cats are good for way more than the manufacturer rated 12000. Who knows? I suppose I'll just run it.
The cat warranty in the BK manual looks to be fairly standard, and I think it would apply to your replacement:
Limited Six (6) Year Warranty:
The CATALYTIC COMBUSTOR is under warranty by Blaze King for six (6) years from the date of original retail purchase.
The purchaser shall pay the following share of the then current retail price for the combustor: The first three (3) years
no charge, 4th year 60%; 5th year 70%, 6th year 80%. The Combustor must be returned to your dealer along with a
completed COMBUSTOR FAILURE REPORT and original proof of purchase document.
The 10-year extended warranty appears to apply only to the original combustor that came with the stove, not the replacement you have in there now. I wonder how they determine weather the cat is covered, and weather it is "still functioning?" (10.) Has anyone ever called in the 10-yr. warranty, and what was the outcome? I don't really care too much about the warranties, myself. I pretty much expect them to start dropping off in performance after year 3, and will probably replace them not too long after that. Thing is, I buy backups and might have them sitting around for a couple years before I even start using them. I have a Dura coming, but may not start using it for two or three years.
1. The original warranty on the combustor, as stated in the owner’s manual, is still in effect.
2. The 10 Year Extended Warranty covers only the original combustor for 10 years against defects in manufacturing or materials.
5. The 10 Year Extended Warranty is only available to the original owner and is not transferrable.
10. If you need a replacement combustor you must contact the Blaze King dealer where you purchased your stove. You will purchase & be charged by the dealer for a replacement combustor. Your original combustor must then be returned to your dealer who must then send it to Blaze King where it will be inspected. Include a copy of the upper half of this certificate with the used combustor. Please follow the normal procedures for returning a combustor as set forth in your owner’s manual. After we assess the condition of the combustor and if we determine that it is covered under the 10 Year Extended Warranty, we will instruct your dealer to issue you a refund for the combustor you purchased. If we determine the returned combustor is still functioning or was damaged by causes unrelated to manufacturing or materials flaw, the used combustor will be returned to you and no refund will be issued.