Here are my temps at 4.1 with the inline fan on, outside temp 42F +\-. Never that cold here but the setup sure helps. Will have to check out the Daytons. the 8 inch fan I got only does 200 CFM on still air, the 500 was a boost number for moving air, have to start reading the fine print.
Kinda have the same thing going, have a nephew coming over to help him assebly his first box, always loose my extra and backup parts that way.
Ale
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