rather than trying to dial in fans and heaters, try buying a good thermostat that does heating and cooling and just plug and play.

you may need a relay or two, but they are easy to build and allow you to easily expand your grow rooms cooling power down the road w/o having to change all your cooling gear.
GanjaRobPDX Reviewed by GanjaRobPDX on . Temperature control solution? White widow is now 7 days into flower stressed with yellow tops which pushit has helped me with :thumbsup: The cheapest solution i can think of is x2 fan heaters x2 timers. 1 timer set for dark with fan heaters variable thermostat set at 20 degrees. The other timer set for light periods with heater set at 30 degrees..? How do you rate the cheap fan heaters as a solution?? would i then have humidity issues? If the fan heaters are suitable they would be working all the time to maintain Rating: 5