A quick shed upgrade - Windmaster 250mm Clear Turbobeam Whirlybird. The shed is an uninsulated metal box in a climate which can be rather warm (45.6c a month ago.) Inside temps could be 5-10 degrees hotter than the outside world.
With the Whirlybird installed and ventilation improved the temp appears similar to the outside world and usually a little cooler. The clear plastic allows a significant amount of natural light. (Unfortunately there is some flickering with its rotation.)
(By the way, with the windows open and the 30' industrial fan, the shed is a very workable environment even on a hot day.)
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