Dry winter air. How do you increase humidity? Powerful DIY Humidifier?

[HaHend]

Hi,

right now the winter air is very dry here. Around 20% outside of my growroom and 35% inside of my grow room.

How do you guys increase the humidity? I already placed all of my dishes and cups with a bit of water in my grow room.

I am also placing wet towels on my aircooled hoods.

I am now thinking about building a humidifier with a humidistat and several ultrasonic foggers as I read these small foggers you can buy are not enough for a grow room.

How many ultrasonic foggers do you use, what are the specs (ml/h) and how large is your grow room.

Thought about building something like this albeit with 5 and not 10 heads:

http://yenyen-swiftlet-farming.blogspot.com/2010/06/taiwan-humidifier-or-ultrasonic.html

http://swiftletfarming.blogspot.com/2011/05/new-ultrasonic-mist-making-machine.html

http://secretsofswiftletsranching.blogspot.com/2010/08/assembly-of-diy-ultrsonic-humidifier.html

 

[OvergrowDaWorld]

Get a humidifier from Wal-Smart and turn it on.

 

[RB56]

Get a humidifier from Wal-Smart and turn it on.

Exactly what I did If you want a higher capacity/higher out unit that still portable, Sears has some pretty nice units.

 

[Crooked8]

The cheapest method =plastic tub full of water, towel half in it, half draped over a chair.

 

[Only Ornamental]

I have an ultrasound thingy (Air-O-Swiss, AOS U650) for our home (not the grow) which pre-heats the water an vaps about 13 liters in 24h. Wasn't that cheap as it's supposed to keep the rel. humidity at 50-70% in a 60 squaremeter room (but we have to much air movement) and a silver stick to prevent mold/bacteria growth. Still, I'm very satisfied.

 

[DabOnDabs]

There are 3 threads with this same info on the main page, but you get the jist. The foggers will do better than anything else..

Also DHF suggests instead of pulling in cool air from outside and exhausting it, you recirculate it in your house somehow with the foggers on so you're not wasting all that extra humidity you're creating

 

[PermaBuzz]

Are you doing any kind of ventilation?

You might want to look into sealing your room(s).
The more sealed, the more humid.

Running a humdifier in a poorly sealed room drives moisture into the walls, promoting mold and rot.

 

[somerandom]

If you do end up buying a humidifier don't bother with the wick/filter type. I have a "whole house" humidifier that's going back to the store as i doubt it would even keep an rh of 45% in an 8'x8' room.
I'm hoping you get some answers on the ultrasonic foggers as this is the approach i'll be going for.

 

[Cali MedPatient]

I've never tried one, but Monkey swore by the Mist Maker. It's a fogger you can get from Amazon. Get the one without the lights.

 

[Granger2]

I don't know anything about Somerandom's unit, but this one works really well for me. Accurate humidistat.
http://www.amazon.com/Essick-Air-E3...-2-fkmr2&keywords=essick+humidifier+800+sq+ft up to 800 sq. ft. Good luck. -granger

 

[flat9]

Dabs is right -- foggers do work fairly well, but just keep in mind that you'll have to get a fogger w/ multiple ceramic discs if your grow space is fairly large. Ebay has a pretty reasonable deal on a 5-disc fogger w/ float right now, though I found it cheaper for $99 previously:

http://www.ebay.com/itm/5-jet-Pond-...at-fog-mister-humidifier-system-/390688736734

Drop one of those in a five gallon bucket and point a fan down into it (maybe use a bucket lid w/ a hole, and leave the lid slightly ajar so the air blown in can escape), and you've got about as good of a humidifier as you'll find.

 

[Dilbert Do]

Rubbermaid + pearlite + water

Works better if the Rubbermaid is shotgunned.

 

[watts]

http://www.thehouseofhydro.com/five-head-mist-maker.html

 

[Baked Alaskan]

HaHend,

I also grow in cold, dry air but do not have that problem. In fact I need a dehumidifier during dark hours.

There is a reason your humidity is too low. Since every grow room has different variables it is hard, without being there, to diagnose problems. It could be the dry air of course and you will need to deal with adding moisture to the air. It could be an issue, like PermaBuzz stated, having to do with ventilation, or wall material, or air movement, or whatever.

Good luck!

 

[Dilbert Do]

I am also placing wet towels on my aircooled hoods.

Fire hazard?