This product is brilliant and works perfectly! It was also shipped fast. I plugged it in and within minutes no more smell or cold air coming down the chimney when it isn’t being used. The extension on the plug was long enough to reach the outlet. Also, lighting the woodstove is now so easy. We plan to leave it plugged in most of the time because we have a chimney backdraft problem due to a radon mitigation solution that pulls out radon below our basement before it can enter our home. During installation, I removed the existing woodstove pipe and used a metal cutting blade in my chop saw to cut it down to size. Everything then fit together nicely.