The Grow Awards 2026 🏆 
Waar afzuiging plaatsen LED lamp
Fluppestarted grow question 4y ago
Hallo, waar plaats ik m'n afzuiging om zo weinig mogelijk warmteverlies te hebben. Ik kweek namelijk op LED. Thx akvast
Open
Setup. Ventilation
likes
Answer
BraveheartGeneticsanswered grow question 4y ago
You would be surprised how much heat those light give out...Obviously they are not HID but those loghts can get too hot and it becomes a problem cooling the grow space... You should be changing the air every minute anyways so it won't hatter where you put it... I would put it as high as you can so as not to get in the way when you bring you light up that high. Good luck
likes
Complain
Similar Grow Questions
Solved
Sam_The_Herborist
Best option to ventilate without a fanI use to grow my plant in a 60cm × 60cm
I had a very low budget to start the cultivation and I plan to buy a fan asap
Meanwhile I would know what is the best option to ventilate my plants ? Thanks for your responses :)Week 3
Setup. Ventilation
6y ago
1
1
Solved
GR0WER
Ventilators OFF/ONHi, guys.
I have one more question today:
- My box has three ventilators. One is working in the upper air channel all the time to bring out hot air. Other two staring on my plants.
Should I use all three of them?
Or one is enough till my babies will grow thick to pervent mould?Week 1
Setup. Ventilation
3y ago
2
1
Solved
smokeshi
New Light? Find a way to raise light? More Fans? Combination? (Light: 44" above ground level | Tent Height: 63" Day avg: 78.6f) Should i worry?What do you guys recommend as far as lighting for this tent? I have a 300w led light but at the height it's currently at it is producing a large amount of heat with my exhaust and two oscillating fans? I also have other plants in with my seedling so could the humidity cause it?6y ago
2
Solved
ElevatedNoob
Won't Oscillate AnymoreI was wondering what type of oscillating fans that everyone uses in small grow tents. I have been using the Vivosun fans and since they won't last I'm looking for alternatives. In case it matters I'm growing in a 27x27x63 MarsHydro tent.Setup. Ventilation
6y ago
6
Solved
Melacola
HumiditéHumidité varie pas mal et j ai investi humidificateur mais sa ne résout pas le souci ventilateur 2 et deux entrés passive mais je pense trop de plans et je suis dans un endroit sous sol merci bien à vous l humidité n est pas bonne pour la floraisonWeek 8
Setup. Ventilation
2y ago
4
5
Solved
Aldo90
Help with airflow. I've got an extractor and 3 circulating fans. Would a powerful inline fan be better than the 3 circulating fansQuestion about environment here.
I've got a 5x5 tent. Total 46m area.
460m3/hr needed to be extracted.
Extractor fan is capable of taking 600m3/hr.
I did have in an inline fan but it's no longer working. Do I need another inline fan ?? I've opened two ports for passive intakeSetup. Ventilation
3y ago
1
1
Solved
Percy
Can you grow in a 60x60x90cm budbox tent 600d mylar have a 600watt dimmable led plus 4inch fan and carbon filter
One. Will all this fit plus my pkant using SCROG Techniques.
Two. Is PHLIZON 600W DIMMABLE a good selectionnfor led lighting
Please help...Setup. Strain - Autoflowering
Setup. Lighting
Setup. Ventilation
4y ago
3
4
Solved
EJBudz
how to ventilate closet grow in apartmentwhat to do with ventilation. They say autoflowers dont depend so much on a light cycle, so could i leave the closet door open? not too worried about smell
in an apartment (1st of 2 floors, duplex style) so im a bit wary of any alterations of the apartment itself. bite the bulletSetup. Ventilation
3y ago
8
7
Solved
SevenStoned
I can't control temperature. I'm so discouraged.How are you guys keeping temperatures down!? I have an hlg 600 Rspec at 50% power and the Temps won't go below 81 degrees with the light on. I'm in a 71 degree house. 4x5 tent with a 400+ cfm fan and negative pressure. I also have fans blowing on the plants and the light.Setup. Ventilation
5y ago
1
2
Solved
DoomSmoker
Can't vent exhaust fan outside, is this a problem?I have my 2x2x4 tent in a closet, with a 4" carbon filter inside the tent and a 4" inline fan outside of the tent, exhausting. But I have no way of directing the air to outside or even out of the room. Will this be a major problem for me? Room is otherwise AC'd via central air.Setup. Ventilation
4y ago
1
4
Solved
Ertomid
reduce humidityWhat techniques exist to decrease humidity naturally without something made special for?Week 5
Setup. Ventilation
3y ago
5
3
Solved
malumalu
I am Having problems with humidity
I already bought extractor of 220 cfm with 125mm downsized to a 100mm tube with a Carbon filtre of 190 cfm
I bought a 75 watts 650ml/day dehumidifier
I m watering less but more frequently and the Rh keep at 70%
Please help me !!Buds. Other
Other. Mold
Setup. Ventilation
3y ago
1
2
Solved
WeedzarPear
Smell problemI have a small tent from airontek, not the best in quality with a carbon filter and extractor inside the box, but the smell outside is too strong. When using carbon filter do i have to expect to have (almost) no smell or maybe Im doing some mistakes? The smell is very strongSetup. Ventilation
3y ago
4
Solved
topbilling
6" Fan in 3x3 TentI bought a 6" fan for a 3x3 Vivosun tent and I'm noticing a good mount of negative pressure even at the lowest setting. Do I need to get a 4" fan? There are some vents on bottom sides of the tent. Can I use those to lessen the pressure? Thanks!Setup. Ventilation
6y ago
3
