Ventilation and humidity

This option may be a little out there, but easily do-able. If you have central air, and you have a tent in the garage, you could tap into the ductwork (supply side) and run air to your tent. It would not be climate controlled (i.e. thermostat), but when it’s hot enough for it to kick on inside, it’ll give your plants a boost.

@Whodat66 that’s not a bad idea. I think before I tap into my duct work, I want to get a better set up and bigger tent/more light…