I have been looking at making the plunge and getting a grow tent. I would like to know more about the ventilation systems because that actually cost more than the tent itself. I have the lights already. Are there parts of the ventilation system that you don't need? I am not concerned about the smell. Can I get away with a fan if the tent is in an air conditioned room? Do I need a certain type of heater?
Whatever in-line fan you go with for your tent, I’d consider going as large as the vents in the tent allow. I’d rather run a larger inline fan at a reduced speed because it’s quieter and generates less vibration. For example, I have a 2x4 tent that could be serviced by a 4 inch inline fan at full speed. My vents can accommodate a 6 inch fan, so I’m running the 6 inch up to 80% speed. I wish I could run an 8. If your tent can accommodate an 8 inch, I would go that way. If you want to save money, you can skip the filter during most of veg and add it back in during flower.
I also like the AC Infinity T6 or T8 in-line fans because they increase/decrease speed automatically based on temperature and humidity. In fact, I like most of their stuff.
I use a smaller tent (2x4) because I vent into my tent room. I have to pump fresh air into the tent room and run a dehumidifier in the room too. It’s usually warm (76-77 degrees) in there and 45% humidity. Where are you planning to vent your heat and humidity from the tent? If you’re venting indoors, I’ve learned from experience that a smaller tent will make it easier to manage your environment.
Good luck! It takes some time to dial it in. If you can find a way to vent outdoors, you’ll be in better shape.