One of my rooms is an 8400 watt room that's vent only. It's rather large, about 21' x 16' but not all that volume is plant space. I vent that room with a 14" pulling on hoods. I have a thermostat on a fresh air intake. This kicks in as needed.
Lets say you vent your AC. I'd assume you'll loose at least 60% of the cooling BTU's, when depending on ambient temperature you'll be gaining perhaps half that. Kinda like a monkey chasing it's tail around a flagpole.
If you seal up and run AC, you need ample dehumidification and supplemental...
Just tossing this out there, 12kbtu/hr is gonna be a cunt hair shy imo.
I dunno what your main breaker is rated at.
Your double pole breakers should feed 480v so your likely good to go imo.
@abe supercro Running QWET cold is the way to lock up a good percentage of the greenery. In QWET the concentration off the chlorophyll makes for dark green almost black oil. One may also darken oil via decarboxylation. I wouldn't think your light oil could stay light after proper decarb for...