Here are some unanswered questions. Anybody want to take a crack at a reply?
https://www.hearth.com/econtent/index.php/forums/viewthread/203/
https://www.hearth.com/econtent/index.php/forums/viewthread/126/
https://www.hearth.com/econtent/index.php/forums/viewthread/119/
https://www.hearth.com/econtent/index.php/forums/viewthread/118/
https://www.hearth.com/econtent/index.php/forums/viewthread/203/
https://www.hearth.com/econtent/index.php/forums/viewthread/126/
https://www.hearth.com/econtent/index.php/forums/viewthread/119/
https://www.hearth.com/econtent/index.php/forums/viewthread/118/