Hi Ross
Yes I agree with you that the big fans location is not optimal. I will take one small step at the time and see the result before I do the next. For now i use it for my phalaneopsis that have no problem with 26 degree Celsius.
The bottom is made from a floor tile in plastic,
Bergo XL. They are perforated (enable air circulation) but very flexible so I made a supporting grid of teak wood.
About the active cooling it have to wait for quite some time, if a ever do it. I would like to have sub room temperature especially at night to grow cool growing miniatures.
/Magnus