Previous concerns expressed over somewhat low stove top temps were due to a bad thermometer. I originally bought a Homesaver off eBay (new) while I was installing the stove. It never reported higher than about 525 and I kept thinking I must have wet wood or something. Finally bought a second thermometer (a Rutland) and it said 650 when the other one said 525. I was paranoid the Rutland was running high! But the original eBay vendor sent me a free replacement for the Homesaver and now both thermometers given similar results. Stove has no problem getting to 600-750 depending on the wood I use and air control setting. Probably would go higher but I back it down. A morning load of locust and sugar maple went to 750 pretty quick and took the chill out of my 61 degree living room.