Hello all I normally get my flue temps with the cover piece on there is a little gap I can shoot my ir gun through. But the weather sucks today so I have been watching and learning my stove. I removed the cove or trim piece off the top and have been checking temps. I the spot I normally check is the right hand side of the photo above the UL sticker . On the liner above the collar. But I noticed if I check the top of the liner the temps differ around 20- 50 degrees. What the most accurate location. It's hard to judge cause by the sticker will be 300 but then top will be 250 and I don't know were to go