Here's one for sale on e-bay. The expense reminds me why I never bought one. They are a little more expensive than I was willing to gamble with. I also wondered about threading a power cord around and up to my flue. http://cgi.ebay.com/Magic-Heat-Flue-Gas-Heat-Reclaimer-6-Reverse-Crimp_W0QQi temZ280173967997QQihZ018QQcategoryZ20598QQcmdZViewItem Warren