The Grow Awards 2026 🏆 
Dehumidifier
Showmethewaytogrowhomestarted grow question 5y ago
I grow 4 x autos in my 1.2m x 1.2m tent. What size refrigeration dehumidifier do I need if I want to empty the tank every second day? 20l, 10l, 5l?
Solved
Setup. Ventilation
likes
TheBudTenderanswered grow question 5y ago
If a dehumidifier is something that’s needed a lot for your grow I would not cheap out and get something small. Invest the money now to save yourself problems later on 👍
Similar Grow Questions
Solved
Italy_Grower
White dots on the pistilsHi everyone, what are these white dots on the pistils, they come out with every cultivation, can anyone help me?Buds. Not fattening
Setup. Ventilation
Techniques. SoG
2y ago
2
2
Solved
TheUk420Show
Possible Stealth Grow ?Hey follow growers, Quick question about stealth grows. Please see the last two pictures of this update, there is a unused closet in my room built in. Do you think if I lined the walls with silver sheeting and added a few led lights ? main concern is Airflow nothing there so ?6y ago
5
2
Solved
Nzmk902
Ventilation. For 2x2 help please, do i need a carbon filter set up? Please explain my best route.Im currently waiting for a 2x2 grow tent & light... ive read i dont need a carbon filter For one plant.... if i have a fan in tp simulate wind and strengthen my plant.... would i need a fan of new air coming in? Or just leave the fan by the hatch to suck new air in
Help please!!Other. General questions
Other. Other
Setup. Ventilation
5y ago
3
4
Solved
DrCris
Is a fan nessesary?Do you need a fan if you have a carbon filter with ventilation installed ?Setup. Ventilation
5y ago
3
3
Solved
Flavaz
Retailer saying I need a bigger fan1st post here going to be starting a diary soon, went to buy a complete set up today 240x120x200 tent 2x600w light kits 6" fan rhyno hobby 6" filter & all the rest, but retailer now saying fan & filter in that package won't be sufficient & I need to upgrade to a 8"fan n filter?Setup. Ventilation
5y ago
1
5
Solved
Newbiegrower420
Slowing a two speed inline fanCan I run a fan speed controller with a dual speed inline fan? My 4” two speed fan is slightly too powerful for my grow room. I’d like to slow the fan slightly but I have heard the these types of controllers don’t work with two speed fans? Any advice or what to buy to do the job?Setup. Ventilation
5y ago
3
3
Solved
blindspot
Degree problemI have a setup like this and I'm trying to find a solution for degree, i got alaskan thunder auto and it's stressed a little bit. I wanna make there cooler. What should i change or add ? There is 30 degree when light is open. when it's closed there is like 26-27 degree.Setup. Ventilation
3y ago
2
3
Solved
kizdog
Controlling environment in closet with no intake fan?I'm growing inside my closet, and I'm having trouble controlling temp/humidity. I have an AC Infinity exhaust fan and a cheap amazon fan + wet towel blowing air in from the outside. Are there any cost-effective ways for me to control this? It can get a little warm/dry sometimes4y ago
2
2
Solved
Keep_er_lit
How to keep tent warm?Hello....first time grower and plants seem to be happy.
Recently installed an online fan and filter but losing a lot of heat..
How do I keep a steady temperature?
Have tube heater inside tent ...but makes little difference..
Thankyou for any helpSetup. Ventilation
4y ago
1
1
Solved
Harukisan
Can I close the door of my closet?My tent is located in a closet kind of room (5x2 meters) and I was wondering if could close the door during the night because the fan is a bit noisy. Will it fill the room with exhaust air/humidity and damage everything inside (the plant, also the clothes that are in the room)?Week 5
Setup. Ventilation
5y ago
2
4
Solved
PapaBaer
Zu warm am BlätterdachHallo die nächste Frage🙈Was kann ich tun um die Temperatur noch runter zu regeln? Am Blätterdach sind es 29-30,5Grad Celsius ich habe schon 2 Ventilatoren und die Abluft auf höchster Stufe laufen sieht aus als würden die Damen im Herbststurm stehen.am Boden 24,5Grad Celsius5y ago
2
Solved
JL420
Ventilador encima del Led en cultivo en cultivo de 0,6x0,6x140cmHola buen dia!
Tengo una duda sobre la ubicacion de mi ventilador oscilante.
Tengo una tienda de cultivo de 0,6x0,6x1,45m con un led Lumatek attis 200w. mi pregunta es:
¿podria colocar el ventilador oscilante arriba del Led apuntando hacia abajo? lo digo por que este es grande.Setup. Ventilation
3y ago
4
Solved
RCD78
Carbon filter / ideal size for my tent.Hi all need info regarding carbon filters.
My tents height 200cm , width is 120cm.
Have tried to work out but no look.
I have 4 plants in it.
I need advice on which size to go for.
I have tried to calculate myself but no joy.
I am advised to get 6" but not sure ??
Thank youSetup. Ventilation
5y ago
2
3
Solved
PapaBaer
TemperaturHallo mal eine allgemeine Frage zur Temperatur in der Blütephase.
Ich bekomme derzeit nur 24-26 Grad Celsius Tagsüber (mehr 26 als 24) und Nachts Maximal 21Grad.
Ist das für die Damen ausreixhend oder muss ich handeln. Sie zeigen keinerlei krankeitssymptome.Setup. Lighting
Setup. Ventilation
4y ago
2
Solved
69XINEYESEEKAYX69
Subterranean fans on 24/7 Y or N?Was wanting everyone's thoughts on fans on the ground of my tent being on constantly, I want to try an keep airflow as well as make the stems stronger from the movement but always end up getting leaves that get wind damage. Luckily most tends to be where lolipopping will be.Setup. Ventilation
3y ago
4
5
Solved
Jannis_Botanicum
Air-Intake / Equipment question.Ok, so i bought a air outtake system for my grow tent with a active carbon filter so my whole house doesn't smell like weed as it does now. My question is can i just install my air outtake in there and close the tent without having a air intake ? Or will that cause Problems ?Setup. Strain - Autoflowering
Setup. Ventilation
Setup. Other
4y ago
2
9
Solved
Crpehdm
High heat in greenhouse, how hot is to hot?I built a 16x20 greenhouse with dual vents and a 24” exhaust fan. I hit a max of 122 (it’s 92 outside). I typically reach 105-110 on regular days. Everyone looks happy other than an nutrient burn issue. Can weed plants handle this kinda heat?Setup. Ventilation
5y ago
3