I guys and gals. I'm new to this forum. I grew up with my dad burning wood and my grand parents have a wood furnace. Ive been around it all my life. I just bought a earth stove model 100 from a friend. My problem is that every time I shut the door the fire goes out. If I leave the door cracked the fire burns good. As soon as you close the door tight puff the fire chokes out. I have the damper on high and it is clear. Any help would be greatly appreciated.