Hi, we've moved into a new (old) house with a Lopi 1750i insert. I just burned a rather short test fire with about half a full wood load (oak and cedar). Everything seemed to go without a hitch. I'm just wondering about how to measure temperatures, as I learn the unit. Burning with full air (and secondary) I was measuring from 450F at the front top lip, to maybe 625F at what I would consider the top center - about 8-9 inches in from the front lip (temps measured with a temperature gun). So what range of temperatures should I be aiming for at the hottest point on the top of the insert? Thanks for any and all advice.