Question on Stove Top Temps

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Garbanzo62

Minister of Fire
Aug 25, 2022
635
Connecticut
I am running a Regency I2500 Insert. Last night shortly after a reload, my flue probe temp was reading 840F. Using an IR Thermometer, The top of the Insert Read 317F and the edge of the door read 422F. I can understand the door being higher than the top as IR was probably picking up some of the blower exhaust. Is this a normal discrepancy between the flue temp and the Insert outside temp? It just seems to be big difference to me.

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The Regency temp is for the catalyst, not the flue temp though in this stove the cat is right below the flue. Typical cat temps are between 800-1200º.
 
STT is a lagging indicator. Try shutting air down quicker especially on a hot coal reload. STT will rise and flue temp should decrease.

Edit: sorry was thinking non cat stove.
 
My Cat stays in that 800+ range for maybe 40 minutes. Then drops slowly. I can tell the cat is firing because when I engage it the temps rise rapidly, but it does not last. Maybe I am just getting good efficiency out of the box and limiting the fuel to the cat, but I would have thought the probe temp would have stayed in the range longer.