The whole idea behind 30 inches of aluminum plating inside is to support the (supposedly optimal) 24 inches of dirt??

So who do I listen to?

I had started a 12 foot by 10 foot room in my basement and was told it was better to go with 8 feet by 4 feet and it would be impossible to sustain the correct environmental parameters in such a vast room.

again, conflicting information.

Do I look up, do I look down, or is it left or right.
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Regards,
Wayne A. Harvey
Thamnophis US
Thamnophis.co
Thamnophis dot net

too many darn snakes to list anymore...