Negative Positive
Title: The temperature differential is huge.
Review: If you set it to 75, even when it's directly in the path of airflow, mine doesn't turn on until 80 and then will keep the unit on until it gets down to 70. I'm replacing it with a programmable 24v stat, 24v transformer and a mars relay setup to get it under control. So I wasted the 17 bucks.
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