We have a neighbor who loves their fireplace. Every day the temperature drops below 60 or so, there's a fire. I love fires, but we smell every one, and don't benefit from the heat :-). The chimney is four feet from our property line, and the smoke always seems to waft horizontally or down, entering our bedroom and sometimes the back yard.
The fireplace is an EPA registered insert with fan, and they burn fairly fragrant wood. The flue is metal and appears to be 4" in diameter with a metal cap.
They are willing to let me extend the chimney up, perhaps 8 feet. Would this help? Is there a way to raise flue temperature so the smoke rises higher and misses our property?