I purchased two of the above listed stoves at the end of last year. I place one in my basement it works great. The one i installed on my main floor works great but the room fan speed makes noise on settings 2,3,4,6,7,8 kind of like a Harmonic distubance a wistleing noise. On fan speed 1,5,9 no operational noise. I contacted Englander and spoke with Mike Holton, he was gracious enough to replace the room fan, unfortunately it is still doing the same thing. The stove is still under warranty and it is disturbing because I dont only want to use those three fan speeds. Mike was a little stumped by this issue. Winter ran into spring and now that fall is upon us im dealing with the same issue. I welcome any and all suggestions Englander is a fine company with great customer service buts lets get real, I cannot be the 1st person to experience this issue. I should have just returned this one but it was too big and bulky and at the time i was too lazy. I welcome any and all suggestions.Help!! [email protected]