You chose 5 degrees as the differential trigger? Any particular reason, or was that just a starting point? I'm trying to think thru the algorithm for enabling\disabling the fan.
As the outside temp bottoms out ~5-6am and starts to climb, I'm not sure if I should stop the fan, or continue drawing until outside temp = inside temp.
While I'm a heat tolerant person, the WHF has enabled me to barely run AC at all for the past three (milder) summers.
BTW, I'm interested in JQuery in MH as well.