OK, so I did a major maintenance effort on the stove in the past week or so. Redid the top gasket, redid the cat gasket, got a new cat, got a new, shielded cooktop (mine was one of those that cracked). I moved the thermometer over to the back cast near the oval for the top vent (mine's rear vent). And, the stove is behaving quite differently, I think. Whereas with the old 3 stone top and heat shield I was getting stove top temps in the 500 - 600 range, I'm now getting stove top temps in the 350 - 450 range. Before I couldn't entirely shut down the air without getting a glopped up glass, now I can and the glass remains clear. When I engage the cat, I'm only seeing a temp rise of 20 - 50 degrees, which gets me thinking cat stall, but when I check out the chimney, no smoke. So, it seems that things have changed and I'm not heating the house like I need to. Obviously I need to adjust my operating technique, but I'm not adept enough to figure out what to do. Is anyone else seeing these differences? bDoes anyone else have the shielded cooktop? If you are seeing differences, how have you adjusted your burning technique? I realize moving the thermometer might result in different temp recordings, but the changes also seem to have affected the amount of heat going to the house, so I don't think its merely a discrepancy of the thermometer. I can't move the thermometer to the stove pipe as that is double wall. By using my IR thermometer, it appears that the place I used to put the thermometer (few inches behind the medallion), is now much cooler due to the cooktop shielding. I"d like to know what temps I should be aiming for on the stove thermometer. For instance, when should I engage the cat? When am I in danger of an overfire (I don't think 700 is the temp anymore)? I just feel like I'm flying blind without knowing what the thermometer readings I should be aiming for are. And, of course, the outside temps are different (colder), so that has some bearing on my perceptions as well, but it seemed as if things were warmer last year, even when it was colder than this. For instance, I've got a full load in right now, it's an hour into this reload on a hot but not overly large coalbed, I have the air setting at about 25%, and it's burning at 450. If I had the air setting lower, it would be in the 350, 375 range. Does that seem right? Thanks. Sorry for the longwinded post.