I have noticed on the homemade section that folks are using the lower hot water heater thermostat and old pc fans. My question is why has nobody gone with the 2 element thermostat and hooked the fan up tp the thermostat as well? I am new to this and have only done still air, but seems to me you wouldnt want your fan running the whole time. And even with a 12 volt adapter you can wire it to the thermostat, maybe I missed its mention. Also, wouldnt air circulating while the heat source is off diminish the time that it would cycle? And wouldnt a constantly running fan in a vented system make it hard to control humidity?