I just had a new a Hearthstone Homestead 8570 wood stove professionally installed. I have limited experience running a wood stove, but know my basics. At the moment I seem to be having a very difficult time getting the stove to settle down and burn at a lower temperature. Every fire I light takes off and seem be unaffected by the damper control on the side of the stove. I have a Stonegard Thermometer on the center stone and it's reaching over 500F with the damper completely closed, and only seems to settle down once all the wood is coal. The odd thing I have noted and can't seem to find any information about; is that I can see into the firebox at 2 gaps on either side of the door, where the soapstone has a chamfers and meets the door frame. See attached picture. Is this normal? Any other advice would be greatly appreciated.