USMC615
Wood's Tougher Than Woodpecker Lips...
Yep, yep. I've got two of the Big Mr Buddy heaters...same philosophy to keep a little ventilation/fresh air. If ya tempt it...liable not to wake up to figure what went wrong.I have three. "Supposed to" is the key word. I always leave a vent open in the tent or fish house when using one.