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DIY HUMIDIFER/CHILLER FOR SMALL GROWS

jcj77d

Member
DIY HUMIDIFER/CHILLER FOR SMALL GROWS​
This is a DIY Humidifer/Chiller for Closet or Tent Grows that can be made for under $50, & all parts can be bought locally most stores like walmart, radio shack, & pet stores or online.
I use this in my 360 cubic feet closet w/ around 400w+ of light. It can lower my temps from 80's to mid to high 60's, & raise my RH from 30% to 90% +/- a few %. The temps are maintained around 75-78, & my RH is maintained around 50-60%. I can regulate the temp & RH by controlling the fans speed, which is controlled by a Coby 12v dc regulated power supply (Output:1.5, 3, 4.5, 6, 7.5, 9, 12V DC)
Parts List:
Ultrasonic Fogger - $25
Fogger Float - $6
60mm Axial Fan (52cfm) - $2
12 quart Rubbermaid Container - $4
12v DC power supply - $4-5
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Ultrasonic Fogger.

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Fogger Float.

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12 Quart Rubbermaid Container.
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Rubbermaid Lid (underside view w/ 60mm Fan).
I just cut a hole to match fan size & screwed fan to lid (intake), & then cut out a hole on oppisite side for exaust. I used a party cup for a spout, but pvc or other material can be used.

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Top View of Lid w/ fan & exaust port, You want the exaust port to be a little bigger than intake port.

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Fogger inside the Fogger Float (holds fogger at the right water level for most fog).

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Shot of Fogger on, fogging in the water.

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Shot with the lid on but fan off.

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Shot of the fog shooting out of the exaust port with fan running full speed.

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Full Shot of my DIY Humidifer/Chiller fully together & running.
Last picture is the Coby 12v DC Supply
http://forum.grasscity.com/attachme...row-marijuana-your-s-answered-here-ca-709.jpg



HERES THE LINK - http://forum.grasscity.com/general-...umidifer-chiller-small-grows.html#post2365890
 
M

Microwido

How does that lower temps? And I think it is a great idea, and you are surely very creative and skilled. But you know you don't want anything over 60% after the 1st few weeks right? You want around 40% during flower.
 
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BudLove

Member
Nice design for a standard humidifier... but I'm with Micro - how in the world can that actually lower your temps from 80's - 60's???? That's as much as a standard AC unit can muster up.... Not to mention, with the heavy increase in humidity I just dont see the logic as the colder it is (usually) the dryer it is.

Anyone build this thing and see the same kinda results?

BL
 

jcj77d

Member
Microwido said:
How does that lower temps? And I think it is a great idea, and you are surely very creative and skilled. But you know you don't want anything over 60% after the 1st few weeks right? You want around 40% during flower.
its weird but the air & fog comes out cold, & yes i know that the right RH is around 60% for veg & 40% for flowering, & lower near harvest. i was just stating what it was capable of doing, if it can do that in my closet (temps down to high 60's, & RH up to 90%), im sure it could work in a bigger grow w/ less results. this can also be modded into a clone box, or a fog feeding root system.

from the manufacture:
Ultrasonic Humidifying Fogger

Is your terrarium ready for the ultimate tropical rainforest environment? The Zoo Med Ultrasonic Humidifying Fogger will provide the most authentic cool, comfortable mist for your tropical pets Increase the relative humidity for the health of your animals and create a fantastic visual fog effect with your indoor fountain. The Ultrasonic Fogger is the perfect device to keep your tree frogs, anoles, green iguanas, and other creatures happy and healthy Simple to set-up and maintain. Get serious. Get Zoo Med
 
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jcj77d

Member
BudLove said:
Nice design for a standard humidifier... but I'm with Micro - how in the world can that actually lower your temps from 80's - 60's???? That's as much as a standard AC unit can muster up.... Not to mention, with the heavy increase in humidity I just dont see the logic as the colder it is (usually) the dryer it is.

Anyone build this thing and see the same kinda results?

BL
i hear you, but im telling yall it works, ill have to make a vid of this in my hydro hut, w/o it & w/ it, to visually see the difference
 

jcj77d

Member
Quick Hydro Hut Test Results

Quick Hydro Hut Test Results

its not a vid, but it shoiuld give an idea.
Heres a shot of the diy humidifer/chiller in my hydro hut, w/ it off & on. this was a test run to see the dif between it off & on.
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i let the 400w hps hut on for 20mins w/ the diy off humidifer/chiller off, to get it to the running temps & RH, which where 79.1 % 43% as u can see in pic.

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heres the shot w/ the diy humidifer/chiller on (only for 10mins) & the temp dropped from 79.1 to 77.9, & the RH rised from 43% to 52% in 10mins, & would prob change more if left on longer, but i had to leave.
 

Daemon

Member
Interesting.....What is the ambient temp in the room that the hut is in? RH?


Also, I remember once making a large-scale humidifier for mushrooms(thanks agar). It was a 55gal plastic food-grade barrel with a squirrel cage blower and pippinng mounted on top and a few foggers on float discs. It worked well and raised the RH of my 7'x9'x10' indoor mushroom growing room to 98% within 20 minutes. One could adapt for our purposes but I think it would be a bit much.
 

FrankRizzo

Listen to me jerky
This is some good stuff. I've had a b!tch of a time getting my rh up with a normal humidifier. Gonna give this contraption a go, nice work.
 

jcj77d

Member
Daemon said:
Interesting.....What is the ambient temp in the room that the hut is in? RH?


Also, I remember once making a large-scale humidifier for mushrooms(thanks agar). It was a 55gal plastic food-grade barrel with a squirrel cage blower and pippinng mounted on top and a few foggers on float discs. It worked well and raised the RH of my 7'x9'x10' indoor mushroom growing room to 98% within 20 minutes. One could adapt for our purposes but I think it would be a bit much.
the room temps range from 76-80 & the RH is around 40% w/ the hut on, never really checked it when off.
 

jcj77d

Member
well i did a final test run on my diy humidifer/chiller. i let the 400w hut run for about an hr & 20mins, & i got the temp to drop from 79.1 to 74.3, & the RH to rise from 43% to 59%. i also did a quick test run this morning w/ frozen water bottles inside the res of my diy, & the temp dropped another 4 degrees to 70.2, but no pic. u could also make this more effective if you where to use mulitple head foggers, instead of a single head like im useing & a bigger axial fan.
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