Just hooked up a used vistaflame fv100, got it from a foreclosed property so I have no history with it. I cleaned it up and made sure it ran before installing it. Once installed everything worked ok i guess. I have a few issues. The slide damper has no effect on the flame and the pellets are spilling out of the burn pot un burned. Going to take apart thoroughly and clean backside. Any other suggestions. It is vented into a chimney with a liner ans has freah air from outside.