I'm a bit confused about thermometers. The one on my stove is a Condar Catalytic thermoter. It inserts through a hole in the stove top next to the flue collar and about 1" behind the CATs. About 1" of it is actually inside the stove and the rest is open betweeen the stove top and the sheet metal top. My question is what's the difference between a CAT thermo and a stove top seeing they are both basically in the same place. I would think that when the CAT reaches 1200 the stove top it is inserted into would be the same temp.