I have Good one for all you DIY guys

Benzfrd

Benzfrd

Member
Ok my problem is My heat:fire:.

My room is 6x6x9. My area is in a building not climate controlled. It is getting hot in there, do to the seasons changing. I cannot put air units in they require to much power and it is Not an option. The temps are hitting 90 in the room now. My plants are awhile away from being done but to far ahead to just chop.

Any ideas on how to keep the temps down with low or no Power Signature
 
Dizzle Frost

Dizzle Frost

Well-Known Member
you could build a windmill

yur best option asides from the windmill is prolly a inline duct fan...they draw low wattage and work pretty decent to suck air out..alot cheaper than a real inline fan to..prolly 30-40 frogskins
 
Murfy

Murfy

Well-Known Member
moving large quantities of air is the only way-

flashing moisture into the air will help considerably if you can move alot of air. think swampcooler.

a cheap readily available way to go is hit the junkyard. the electric fans used to cool automotive radiators are pretty powerful. a 10 inch version would easily produce on the order of 1000cfm. building boxes, or free flowing application would be up to you.

you would imagine you could get a few for 5 or 10 bucks apiece. use a computer power supply to run them.

to get tricky, buy a block of excelsior, and a small pump and quarter inch line. plumb the line across the top of the excelsior, pinhole it here and there to weep. put in front of a fan and you're rockin.
 
d r0cK

d r0cK

Well-Known Member
like murfy said, swampcooler, or some sort of radiator. but with the ambient temps outside your box being high, there's not a lot you can do. ive seen people put copper tubing coiled around a stand up house fan, one end hooked up to a water pump and the other end draining back into a bucket with the water pump. fill the bucket with ice and water. if you were to use a rubbermaid trashcan instead of a bucket you could put a lot of ice in there..... ooohh, and if you were to insulate the trashcan the ice would last longer!
 
Benzfrd

Benzfrd

Member
Man Those are some good Ideas. Thanks to everyone and I plus repped you all. I do have a 4'' inline fan now pulling air out. with fresh outside air coming in. I like the idea of introducing Co2 to help them coop with the heat. But will the heat kill them off? Like I said I only have 5-6 weeks left. I wont grow again till fall cause of the heat. I do have alot of air movement now 1 cyclone fan and a oscilation fan That plus the 4'' inline at 170cfm I thought was enough

IS Co2 worth the trouble if I am just taking it down later. Or will my plants make it without it ?
 
Murfy

Murfy

Well-Known Member
co2 is worth the trouble(its not really the hard part)-

co2 will make a big difference. the tricky part is everyhting has to be perfect to realize that effect. the down side is, i believe, it makes things go bad much faster. if there is a problem it will happen at light speed.
if your gardening skills are sufficient, dealing with 95 degrees is possible with co2.

i know you said electric use is paramount. my experience is that a 5000 btu window air con. will cool a thousand watt bulb. lets say in a shed, with minimal insulation, quite easily.
and all for about 5 amps. no hose, fan, duct, etc. cut a hole in the wall, and caulk it in.
30 bucks on CL.
 
d r0cK

d r0cK

Well-Known Member
when you start talking about introducing Co2 you need to think about how much air movement you have. in order for the Co2 to really help it needs to be in the range of 1300-1500ppm in the air. that being said, if you have a shit ton of air movement, you're gonna need a shit ton of Co2.

if you're running anything bigger than a 150w hps, then your 170cfm is just not big enough. when i used a 1000w HID i had a canfan 440cfm with a/c unit to cool the room and the 440cfm was barely enough to keep it at 82. i would definately step up your fan sizes. exhuast more than you intake.
 
marlfox117

marlfox117

Active Member
that would be ideal, use a small electric heating unit on a timer during the end of your light off cycle (for obvious reasons that it generates heat at this point) then have it automatically shut off. cool air for your whole light cycle. Im going to research thermal dynamics now lol
 
plantvision

plantvision

Active Member
I don't see them around here, but I know in Arizona they have misters. Cool water through a mister in front of a fan.
Could be kinda messy indoors and possible mold issues I would expect. Something to try though.
 
Benzfrd

Benzfrd

Member
marlfox117 said:
that would be ideal, use a small electric heating unit on a timer during the end of your light off cycle (for obvious reasons that it generates heat at this point) then have it automatically shut off. cool air for your whole light cycle. Im going to research thermal dynamics now lol
Click to expand...

That sounds right to me. We need to see if we can find some of those
 
abecsta

abecsta

Active Member
ok get a dehumidifier a poly box or chilly bin, hosing fish tank pump (and cooper tubes?)
pull the dehumidifier apart and bend the cooling tubes down into the poly box.(may want to wind the humidistat up)
put the fish pump in with hosing connected you now have water that will be about 40F in 80F weather use this to help keep your room cool.

you could add copper tubes over your air intake and pump the water through that to help cool incoming air and or bend a tube around your fan and have the cold water run through the tubing so you are blowing cool air into the room.

you could even try water cooling your lights

I hope you get some ideas from this
 
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