Thanks for the advice @Jon, I'll watch how things turn out and then I'll decide if air conditioning is needed but I think I'll have to go to it over the summer but we'll see sometimes we have 35 over the summer and other times 25 we'll see what next year will beSo you have the air conditioner outside and just directed to the ventilation hole?
Yes, but not just "directed to the ventilation hole," smack dab tight up against the ventilation hole. The big slot one.
Mobile air conditioning unit inside or outside the tent?
Without knowing a single detail I'll always tell you to keep any piece of equipment, and indeed every single thing you possibly can, outside the tent. Circumstances do not exist where anyone can get away with an AC unit inside the tent for many reasons. It would not work that way. Must be outside the tent.
And when the worst you can do is raise the temperature with the air conditioning or do you only use it for cooling?
I personally only use it for cooling due to the weather where I live. I don't see why one couldn't use it for heating too if it's that type of unit and if it was necessary, but I can't speak from experience to that.
Do you let it run 24/7?
This is dependent upon both the weather outside and the stage the plants are at. I don't use it at all in seedling and early veg. When the plants start to get bigger I start using it on low during the day hours but not at night. I don't use it overnight until flower. Once I'm in flower I've found it becomes almost necessary to run it 24/7 cuz you're generating so much moisture at that point that you are well served to use it to lower the rh. Again, all that is weather and where you live dependent. But that's about the way it works out for me.
Sorry so quick and non conversational, this is just quicker and I wanted to attend to your questions forthright. Keep tossing them if you have any and I'll respond as I come up for air.