Are there any reliable dehumidifiers for a 5x5 tent?

butter_bean

butter_bean

Member
I am looking for recommendations for a good dehumidifier for a 5x5 tent. Preferably ones you have used with experience

I am currently using a vremi 22 pint 1,500 sq foot dehumidifier and its way overkill. It does not work properly in the tent as the humidity will bounce back and forth between 50-60° when its on

Ive tried cheaper small dehumidifiers from amazon but they dont work. Any pointers in the right direction would be much appreciated
 
Nizza

Nizza

Well-Known Member
butter_bean said:
I am looking for recommendations for a good dehumidifier for a 5x5 tent. Preferably ones you have used with experience

I am currently using a vremi 22 pint 1,500 sq foot dehumidifier and its way overkill. It does not work properly in the tent as the humidity will bounce back and forth between 50-60° when its on

Ive tried cheaper small dehumidifiers from amazon but they dont work. Any pointers in the right direction would be much appreciated
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If the tent is vented into a room I'd try the dehu in there instead and use it like a lung room
 
Nizza

Nizza

Well-Known Member
butter_bean said:
I would but I dont want to run my inline fan 24/7
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more details on your whole setup to be able to help you figure out the best way to set things up. If you're trying for an even slower dehu there are options if the dehu you already have is short cycling.

most likely you want an inline fan you can run at a variable speed 24/7 into a lung room if im making sense
 
butter_bean

butter_bean

Member
Nizza said:
more details on your whole setup to be able to help you figure out the best way to set things up. If you're trying for an even slower dehu there are options if the dehu you already have is short cycling.

most likely you want an inline fan you can run at a variable speed 24/7 into a lung room if im making sense
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My setup is just 1 inline fan which exhausts out of the tent. I dont have any intake fans and rely on passive intake while its on. I mainly use it to control temps during lights on. So when lights go off thats when I get the humidity issues and I rely on the dehumidifier to try and keep that in check
 
Nizza

Nizza

Well-Known Member
butter_bean said:
Also is this what you mean by short cycling?
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well what are you achieving by keeping the fan off at night? I would think moving air is better. If you can keep the fan at a minimum of 1-3 or something 24/7 and keep the dehu in the same room as the tent, thats what I would do. I would want a DC/PWM dimmable inline fan -- not an AC type with the stupid 30$ dimmer.

by short cycling I mean that the dehu is turning on shutting off repeatedly which it does look like its doing in your pic. I would do whatever I could to try to make the dehu cycle for longer like not ever more than 6x an hour. You will burn the compressor out of the dehumidifier and spend alot of $$. A compressor uses the most amount of amperage just to kick on


it would be good if the compressor only turned on a maximum of 3-4 times an hour for your dehumidifer. Reliable or not, if it is running on and off all the time it will fail
 
butter_bean

butter_bean

Member
Nizza said:
well what are you achieving by keeping the fan off at night? I would think moving air is better. If you can keep the fan at a minimum of 1-3 or something 24/7 and keep the dehu in the same room as the tent, thats what I would do. I would want a DC/PWM dimmable inline fan -- not an AC type with the stupid 30$ dimmer.

by short cycling I mean that the dehu is turning on shutting off repeatedly which it does look like its doing in your pic. I would do whatever I could to try to make the dehu cycle for longer like not ever more than 6x an hour. You will burn the compressor out of the dehumidifier and spend alot of $$. A compressor uses the most amount of amperage just to kick on


it would be good if the compressor only turned on a maximum of 3-4 times an hour for your dehumidifer. Reliable or not, if it is running on and off all the time it will fail
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Mainly to avoid an electrical fire. Im scared of the components being on for so long, heating up then causing a fire. Also helps to save a bit on the electric bill because I only need the dehumidifier when I water
 
coreywebster

coreywebster

Well-Known Member
butter_bean said:
Mainly to avoid an electrical fire. Im scared of the components being on for so long, heating up then causing a fire. Also helps to save a bit on the electric bill because I only need the dehumidifier when I water
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Fans are self cooling, there's no chance of it setting fire.
Some of mine have run over 10 years 24/7, though not necessarily in the same grow room.

Plus they Don't use much electricity, especially if you have one that can be turned down .

A dehu will use more power normally than a fan.

It would be much easier if you weren't venting into the same room
 
Rurumo

Rurumo

Well-Known Member
Your tent's vent fan should be on 24/7, they use a negligible amount of power, especially compared to a dehumidifier. Most likely, you will need to keep the vent fan on 24/7, and add a dehumidifier to your "vent room" which is simply the room your tent is in. Small tent/closet dehumidifiers don't work well, I'd skip any dehumidifier that doesn't use compressors. In a normal sized room with a 5x5, you'll need to keep your dehumidifier on 24/7 during the winter (anytime you don't open the windows daily). Once these plants are fully grown they produce an enormous amount of water vapor. I'd look at the 20 pint dehumidifiers-they are the smallest size for the compressor models but they also have small water tanks, so you might end up emptying it several times per day/night unless you can set it up to drain continuously...just something to think about.
 
butter_bean

butter_bean

Member
coreywebster said:
Fans are self cooling, there's no chance of it setting fire.
Some of mine have run over 10 years 24/7, though not necessarily in the same grow room.

Plus they Don't use much electricity, especially if you have one that can be turned down .

A dehu will use more power normally than a fan.

It would be much easier if you weren't venting into the same room
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Rurumo said:
Your tent's vent fan should be on 24/7, they use a negligible amount of power, especially compared to a dehumidifier. Most likely, you will need to keep the vent fan on 24/7, and add a dehumidifier to your "vent room" which is simply the room your tent is in. Small tent/closet dehumidifiers don't work well, I'd skip any dehumidifier that doesn't use compressors. In a normal sized room with a 5x5, you'll need to keep your dehumidifier on 24/7 during the winter (anytime you don't open the windows daily). Once these plants are fully grown they produce an enormous amount of water vapor. I'd look at the 20 pint dehumidifiers-they are the smallest size for the compressor models but they also have small water tanks, so you might end up emptying it several times per day/night unless you can set it up to drain continuously...just something to think about.
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Alright I will switch my inline on to a 24/7 cycle
 
PJ Diaz

PJ Diaz

Well-Known Member
butter_bean said:
Mainly to avoid an electrical fire. Im scared of the components being on for so long, heating up then causing a fire. Also helps to save a bit on the electric bill because I only need the dehumidifier when I water
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Starting and stopping a fan is more likely to cause a fire than running it continuously.
 
Nizza

Nizza

Well-Known Member
butter_bean said:
Yeah its a variable speed fan - AC infinity cloudline s6 6 inch
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what controller do you have with it ? The newer controllers have much more settings and you can set different day and night profiles for fan speeds

I definitely think that you should have the fan run 24/7. The cloudlines are awesome so you will be able to dim it down and not worry about heat problems that could come with non-dimmable fans being dimmed.

There will be a big improvement having the fan constantly on and as the plants grow bigger you will have to deal with more humidity and the dehu you currently have might be fine
 
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