Ok so as Summer approaches and the temperature where I live goes up to about 30 degrees celsius from a winter temp of as low as -40 degress Celsius. During the colder months I havent had a problem, but now Im kinda getting worried. I know the temp in my 10 x 4 x 10 ft grow area is gonna heat up really bad. I have a powerfull floor model AC unit that has its own Intake and Outake Ducting that mount to a window in the corner of the room. It has a timer and temp regualtor built in aswell.(is a dehumidifier aswell, but dont use it for that) Will that be ok for cooling the room? and is 26 degrees the optimum temp(when the lights are on) or is it lower?
I'm not sure about the Celsius to Farenheit ratio, but if you are or feel like finding the math, I know without CO2 enrichment optimum temps are between 74-79F. With CO2 enrichment it's around 80-87F. And yes, I think your AC unit should work out.