Not sure if it was ever mentioned but adding some heat sinks has helped me keep the temps more stable with less heat running (whatever your heat of choice is).
I just have 4x 2.5gallons black bathroom trashcans in the corners full of water. Water is actually a really good conductor and will absorb light energy and hold some heat to release during lights out.They must work because when I keep them too close to the heater it never comes on with the thermostat.
It's an old greenhouse trick, black 55 gallon drums of liquid partially buried in the rows will keep soil more consistent. They used old antifreeze barrels, full of old antifreeze! Little too scared for the environment to advocate that one.
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