Orite sneakyt33.

About the thermostat then.

I have 2 inlets. Both are 4"/100mm dia. One has an inline fan pulling in cool air. The other is a normal cheap electric household heater with a simple mod to try and encourage it to pull air in from outside also.

Both fans are wired to a switching thermostat that will power each device when required, and never at the same time. All I do is set my daytime temperature and night time temperatures (and the time that day becomes night) and the rest is auto. I do not have speed controllers in stalled. The out take (filtered) exceed the intake but doesn't cause an unlivable vacuum. This way, the smell should never become a problem.

I have taken pics of the thermostat with the control panel covered; control panel revealed; Exhaust fan ~(not linked to thermostat)~; and the two fans that are controlled by the thermostat. Last image is my feeding thingy, but it might not be readable because of the resize