swamp coolers and humidity - Growroom Designs & Equipment - International Cannagraphic Magazine Forums

freeda green · 06-17-2004, 08:42 PM

Hello all!

I have a 3' x 3' x 8' grow closet with a 400w hps hortilux and I want to try and cool my closet by about ten degrees F. Cutting holes in the top of the closet was not an option, so I installed a new door on the closet with two 4" computer fans. I also had a large oscillating fan going, but temps still stayed in the 80s (F). Humidity during veg was 40-60% and 20-40% during flower.

I am eagerly awaiting SD shipment of BOG LSD, Nirvana Papaya, Nirvana AK48, and hopefully some freebies

So, needless to say, I am trying to improve my closet situation for my good genetics.

Anyway, I read one post by Farmer John where someone had suggested a swamp cooler, and I was wondering what you guys thought about them. Has anyone used a swamp cooler? Do you think it will affect humidity too much?

Any advice on this matter would be greatly appreciated

Freeda Green

06-17-2004, 08:56 PM

I've made a few swamp coolers over the years for other stuff but never for grow op. Humidity would be an issue to address.

I thought about it but I need more than the marginal cooling (5-10 degree max) it would give me. Plus when the relative humidity gets to a certain level a swamp cooler does not work. It's just a big fan. Oh yea it will rust every thing that is not stainless steel(cost me a fortune in my machine shop once)

In more moderate climates(not Texas) they would probably work alright

Tex

freeda green · 06-17-2004, 08:57 PM

Farmer John,

your topic was: a room temperature question

https://www.icmag.com/forums/showthre...t=swamp+cooler

and Dowzer was the member who suggested it I believe

freeda green

freeda green · 06-17-2004, 09:06 PM

Texas Kid,

I wish I could say that I live in an arid climate, but I don't. I'm just a few states away from you on the gulf coast.

I think my humidity levels were on the high side during veg because I watered too much. I have been regenerating one plant from my last grow, and humidit has stayed around 24%

I actually thought I was going to have worse temp/humidity problems, but with the ac in the house running all the time it wasn't so bad. I think my light just warms the closet a little too much for my little computer fans to do the trick.

06-17-2004, 09:07 PM

Is your ballast for the light in the room or is it remotely mounted?

Get a real exhaust fan or a 6" inline fan something that will move the hot stagnant air out of the room. A 3x3x8 you could have a 265-440cfm fan and have no problems

Tex

freeda green · 06-17-2004, 09:09 PM

Tk,

My ballast actually sits outside the cabinet.

Freeda Green

06-17-2004, 09:10 PM

Get a real exhaust fan or a 6" inline fan something that will move the hot stagnant air out of the room. A 3x3x8 you could have a 265-440cfm fan and have no problems

Tex

freeda green · 06-17-2004, 09:10 PM

oops TK

my ballast sits in a cabinet outside the closet . . . sorry

freeda green

freeda green · 06-17-2004, 09:15 PM

TK,

I hadn't really thought about replacing my computer fans. I'll have to give that some thought. I used them because they are quiet, and I didn't want a fan mounted to the door that was gonna be real noisy. It is a good thought . . . have to talk it over with the other half, but definitely a good thought.

Thanks,

Freeda Green

06-17-2004, 09:22 PM

Bayou la Battry is that were you are at?

I love the Forrest Gump reference

Tex

06-17-2004, 08:42 PM	#1
freeda green Member Join Date: Jun 2004 Location: around the corner from forest gump : ) Posts: 91	swamp coolers and humidity Hello all! I have a 3' x 3' x 8' grow closet with a 400w hps hortilux and I want to try and cool my closet by about ten degrees F. Cutting holes in the top of the closet was not an option, so I installed a new door on the closet with two 4" computer fans. I also had a large oscillating fan going, but temps still stayed in the 80s (F). Humidity during veg was 40-60% and 20-40% during flower. I am eagerly awaiting SD shipment of BOG LSD, Nirvana Papaya, Nirvana AK48, and hopefully some freebies So, needless to say, I am trying to improve my closet situation for my good genetics. Anyway, I read one post by Farmer John where someone had suggested a swamp cooler, and I was wondering what you guys thought about them. Has anyone used a swamp cooler? Do you think it will affect humidity too much? Any advice on this matter would be greatly appreciated Freeda Green
	Quote

06-17-2004, 08:56 PM	#2
Guest Guest Posts: n/a	I've made a few swamp coolers over the years for other stuff but never for grow op. Humidity would be an issue to address. I thought about it but I need more than the marginal cooling (5-10 degree max) it would give me. Plus when the relative humidity gets to a certain level a swamp cooler does not work. It's just a big fan. Oh yea it will rust every thing that is not stainless steel(cost me a fortune in my machine shop once) In more moderate climates(not Texas) they would probably work alright Tex
	Quote

06-17-2004, 08:57 PM	#3
freeda green Member Join Date: Jun 2004 Location: around the corner from forest gump : ) Posts: 91	Farmer John, your topic was: a room temperature question https://www.icmag.com/forums/showthre...t=swamp+cooler and Dowzer was the member who suggested it I believe freeda green
	Quote

06-17-2004, 09:06 PM	#4
freeda green Member Join Date: Jun 2004 Location: around the corner from forest gump : ) Posts: 91	Texas Kid, I wish I could say that I live in an arid climate, but I don't. I'm just a few states away from you on the gulf coast. I think my humidity levels were on the high side during veg because I watered too much. I have been regenerating one plant from my last grow, and humidit has stayed around 24% I actually thought I was going to have worse temp/humidity problems, but with the ac in the house running all the time it wasn't so bad. I think my light just warms the closet a little too much for my little computer fans to do the trick.
	Quote

06-17-2004, 09:07 PM	#5
Guest Guest Posts: n/a	Is your ballast for the light in the room or is it remotely mounted? Get a real exhaust fan or a 6" inline fan something that will move the hot stagnant air out of the room. A 3x3x8 you could have a 265-440cfm fan and have no problems Tex
	Quote

06-17-2004, 09:09 PM	#6
freeda green Member Join Date: Jun 2004 Location: around the corner from forest gump : ) Posts: 91	Tk, My ballast actually sits outside the cabinet. Freeda Green
	Quote

06-17-2004, 09:10 PM	#7
Guest Guest Posts: n/a	Get a real exhaust fan or a 6" inline fan something that will move the hot stagnant air out of the room. A 3x3x8 you could have a 265-440cfm fan and have no problems Tex
	Quote

06-17-2004, 09:15 PM	#9
freeda green Member Join Date: Jun 2004 Location: around the corner from forest gump : ) Posts: 91	TK, I hadn't really thought about replacing my computer fans. I'll have to give that some thought. I used them because they are quiet, and I didn't want a fan mounted to the door that was gonna be real noisy. It is a good thought . . . have to talk it over with the other half, but definitely a good thought. Thanks, Freeda Green
	Quote

06-17-2004, 09:22 PM	#10
Guest Guest Posts: n/a	Bayou la Battry is that were you are at? I love the Forrest Gump reference Tex
	Quote