oldmountvernon said:dont know if this sounds stupid but im thinking the hotter the air coming out of the stove the further the hot air can travel ?
Always had it in my mind that maybe by the time the air got to that bedroom it has already been cooled off
Hotter air rises. Once it cools it doesn't rise and actually starts dropping. So hotter air can rise farther as it takes more to cool it to the point it turns back toward the stove. Think hot air balloon, To keep it up in the air, You need to keep heating the air. When you want to drop you let it cool.