Quote:
Originally Posted by Daox
Why would you need a differential controller for an attic? Wouldn't a normal temperature switch do?
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It has a normal temp switch; I'd like to upgrade.
Take this morning as an example; 70deg outdoor air temp, 95 deg attic temp (my roof is shaded in the afternoon, but not AM) I could have dropped attic temp down in to the mid 70's and taken some load off of the A/C. How ever if I had set the thermostat to 75 to take advantage of this situation the fan would turn on sometimes in march and shut off in early september.
Just another case of taking maximum advantage of available of available resources.
Sorry for crappy post; in a hurry . . . .