DIY co2 controller if you own thermostat.

[demoreal]

you can still feel cool bro...you are right you need 2 timers...1 for your CO2 generator and 1 for your fan...i know you have an AC in your room that is where your thermostat comes in to keep your temps in check and not waste CO2 :smokin:

i have no ac the thermostat is hooked to my fan. i have the TMP-DNe thermostat (bought it for 50$)
you can still feel cool bro...you are right I have 2 timers one for my hydro pump and another for my hps. :smokin: