This wood stove perfect for heating a wall tent, small cabin, tiny house, etc. It gives off a great glow with its 4X8 window. This stove is made out of thick 1/8 steel and has a large firebox so it will handle standard length firewood and will last a long time between reloading. The metal is cut using a CNC laser and welded together. It has a traditional chrome coil spring handle so the door can be opened and closed without having to wear gloves. It is designed to be used with 6 stove pipe. Vertical stove pipe routing is recommended for best stove performance. Window Size: 4 X 8. Distance from stove to combustibles: 36 This distance can be reduced by 2/3 if a heat shield is used. 1/8 Cold Rolled Steel. None (Not UL approved). United States of America.