Hi all! I have a 3x3 tent (about to go up to a 4x4). Smell was a HUGE problem so I got an exhaust fan and filter. The fan I got was the CLOUDLINE S6. It’s a manual fan but I love the thing. It’s so quiet! SMELL - GONE!
Now temperature inside the tent is a problem. The CLOUDLINE series has a model that is automated and maintains fan speed based on desired temperature. One of these on the intake would help with internal temps, right? I know that the exhaust fan needs to be pulling more air out than the intake fan is pushing in to maintain negative pressure in the tent. So would their T4 fan be enough on the intake at 204CFM? My exhaust fan is the S6 with 351CFM pulling through a charcoal filter.
If the T4 isn’t a good option for temperature control then maybe the T6. The T6 has the same capacity as my S6 exhaust fan.
Right now the passive vents are open on the tent and this helps with the temperatures. I can’t do this once I start flowering though because I can’t make the entire room dark. I feel like the intake fan is my best bet… just gotta choose wisely. The T4 or the more expensive T6?
Does your tent have large vents on the bottom and top. If so you could get by without an intake fan with proper positioning of your vent fan at the opposit corner of the intake. You could always prop open and run a duct from the passive intake vent to avoid light getting in. I do this with my 4x4.
I would get one with similar capacitys. I did run and intake with my 4x4 but I was worried about laundry room smells in tent so I had a carbon filter on it. It worked but still had a smell. Thinking I didnt have enough negative pressure. I like the passive air idea I would just run some venting out ur intake port and ur exhaust will suck the air thru that way and u can make that light proof. Lol opps already said.
I agree with Wicked ale with a good exhaust fan with the variable speed you really don’t need intake fan I have found with a 6 inch flex you can Place in intake holes put a couple of bends in the pipe to prevent light loss. Adjust your variable speed on exhaust to keep a good negative pressure inside tent. 1 exhaust out the top 2 intake pass through holes at the bottom works very well. Good luck
I just use a piece of flex pipe and found some bug covers at the hydro store. They also have some carbon in them too so might help with the laundry smell. Paid like 1.25 for them.
Make sure your fans are outside of the tent. They generate heat. The cloud line will control two fans so one input and one output would do nicely. Buy one with the sensor/control and the other without. 4" is ok for 4x4. Six better so comes down to cost I would think.
I have two small 4" fans running under my SCROG in addition to the intake and exhaust fans.
I do have the large rectangular vents on both sides of the tent at the bottom. With those open I have negative pressure in the tent (good) and the tent temps are 77* F with the lights on. The problem I’m worried that I’ll run into is light getting INTO the tent when they’re flowering.
Prior to opening the bottom vents I had just one of the 6" round vents open with ducting and the inside temps were 82* F. I’ll try with both 6" round vents open next and see if I can get below 80* F. I’m guessing if that works then I can just use 6" ducting on the intake and face the opening of the ducting away from the other sources of light in the room.
Curious, what is your lighting? What’s generating so much heat? What is the temp outside the tent? You should be able to cross draft your tent to evacuate all air in a few minutes. Your set up may not be right. Picts of your set-up may help.
@bigbudgrowdiaries I also have the cloudline s6. I read enough bad reviews about the temp controller to not get one on mine. However I emailed them and they said they do not offer it seperate but they would sell me one for 40 bucks if I was interested.
I have the VIPARSPECTRA Reflector-Series 900W. That’s the only mech/electrical thing inside the tent to generate heat. I have 2 6" circular fans and a 12" fan inside the tent as well. Temp outside the tent is 72.
TBH - I think this 3x3 is small. The extra foot once my 4x4 gets in (plus the extra height) should help a bit too.
Exaust intake is at the top of the tent? Do you have the filter inside or outside the tent? And you know that the air is passing easily through the filter? Where is your thermometer in relation to the light? From all that yo describe you should not be having a temperature problem.
Yeah, exhaust is at the top. The filter is in the tent and the fan is outside the tent. I don’t have the fan all the way up right now and it’s about to suck the sides in. When I do turn it all the way up it doesn’t make that big of a difference in temp.
The thermometer is on the floor in a corner. It isn’t in direct view of the light.
Again, right now there isn’t a temp problem with the two bottom vents open. I’m eventually gonna have to close those though. When my ducting gets here I’ll test it out with two of the 6" holes open and see how it goes.
Ypu will get better air flow through the filter if you reverse flow from fan out of filter, but that doesn’t seem to be the problem. Likely just channeling the air properly to sweep the hot air out.