Reading through the various threads I see that a few have added a PC type muffin fan to their LG incubator. Can any of you advise on how to best accomplished the addition? By looking at one LG fan kit it appears that the fan does not blow directly down but out the sides to develop an indirect crossflow. The other setup appears to be a typical fan which blows directly downward. Anyone want to chime in with your experience, instructions and/or pics? I'm planning to tie a 120v pc type fan into the existing circuit. Thanks in advance.