TommyHobby
Active Member
The temp will be about 77*F. It will be coming from an air-conditioned room.
Inline Fan from HomeDepot... need opinion
- Thread starter TommyHobby
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The temp will be about 77*F. It will be coming from an air-conditioned room.
Xenosis
Active Member
Oh ok, that's good to know.
Bonzi Lighthouse
Well-Known Member
77 is the max that you want at your intake, under 75 would be much better, you jaust have to move more air as that temp gets higher.
kanabis
Well-Known Member
I originally did my installation with 5 of those, 2 are blowing fresh air and another 3 are sucking. My veg room is 4x10x12=480 cf and the flowering is 8x10x12=960cf, with outake rated at 210cfm, it should be ok but the truth is that it's not. My opinion is that I came to the point that I know to replace and upgrade to something more powerful, it's not enough and I'm unable to regulate my temps as I would like. In winter I'm good but summer is a nightmare and I had to install an airco to cool down the rooms, Even though it's not enough! I'm planning on installing a squirrel that will seriously suck the hot air but I'm looking to 500-600 cfm minimum.
I don't agree, fresh air is vital plus take in account intake of fresh air will add some CO2 which is necessary for photosynthesis.
Bonzi Lighthouse
Well-Known Member
Before you start trying to slove other peoples I suggest you solve you own first. It's obv you do not have the understanding to be making any statement.
TommyHobby
Active Member
Bonzi,
on your diagram it seems that the duct used to remove heat from the cool tube doesn't suck any air out of the tent, is that right? Does is pull air out from outside of the tent, goes thru the lamp, and out to the attic ?
Wouldn't it benefit more if the intake was at ceiling of the tent getting rid of the hot air up there at the same time?
on your diagram it seems that the duct used to remove heat from the cool tube doesn't suck any air out of the tent, is that right? Does is pull air out from outside of the tent, goes thru the lamp, and out to the attic ?
Wouldn't it benefit more if the intake was at ceiling of the tent getting rid of the hot air up there at the same time?
HookdOnChronics
Well-Known Member
lol, TRUMP!.. For real tho OP, I'd listen to Bonzi. lol
Um sorry, not trying to make you sound like an idiot or anything. But ya see, what bonzi is talkin about here is having a passive intake. (pay attention here, because this WILL solve YOUR heat problems, oh wait, you already wasted money on an AC unite) What a passive intake means, is you have all your fans SUCKING or PULLING air out of the top of ur grow room (heat rises) and instead of having fans blowing air in the bottom aswell, you can just make a hole near the bottom, put those fans up top, and because all the fanst are sucking all the hot air out of the TOP of the grow room, it'll also be pulling COOL air through the holes in the bottom of the grow room. THUS solving your heat problems AND moving more air throught the growroom every minute. Passive intake bud, look it up. Coulda saved yourself some money on the whole AC unite by just moving your intake fans to the top and making them exhause fans. Just a little friendly FYI.
Nice shit bonzi! I remember when I first started and was trying to 'push' air. lol, felt like an idiot when I realized no intake is needed, and all you have to do is extract the heat. It's really actually very simple if you just 'THINK' about it. lol
I'd have to go with no. Intake is always on the bottom. Exhause up top. always. IMHO that is. Warm air rises, so to get cooler air in the grow area, make your intake at the bottom. Intake doesn't get rid of air, the intake is where the air comes INTO the grow room. Air will be coming into your grow area THROUGH your intake. And then EXITING through your exhause fan. But all the work will be done by just the exhaust fan.
So according to the pic. If your gonna have 2 fans. The top most fan will not be moving any air around your grow room. It will be sucking 'fresh' air outside of your grow room, through your venting, through your light hoods, and then out the grow area. None of this air will be getting into the grow room. Nor will this air smell. It is soely to cool off your lights.
Now the 2nd fan a bit lower has the carbon filter attached. So basically the air would be coming into your gro room from the intake on the lower right, and then be getting sucked through the carbon filter, eliminating the smell, and then back out of your grow area. BAM!..
Does this make sense?
Good luck and grow on bro!
TommyHobby
Active Member
I guess I phrased it wrong.
Looking at Bonzi's diagram from earlier in the thread, it seems that it would be more beneficial if the ducting on the cool tube could be sucking in air from INSIDE the tent. It would cool down the light as well as suck some of the hot air collected at the top of the tent. A secondary exhaust would just be used for air circulation. I don't know if that makes any sense.
Looking at Bonzi's diagram from earlier in the thread, it seems that it would be more beneficial if the ducting on the cool tube could be sucking in air from INSIDE the tent. It would cool down the light as well as suck some of the hot air collected at the top of the tent. A secondary exhaust would just be used for air circulation. I don't know if that makes any sense.
Bonzi Lighthouse
Well-Known Member
Yes you are correct, you can do the sam thing with just one fan.
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TommyHobby
Active Member
Exaaaactly !!! thanks Bonzi.... +rep
HookdOnChronics
Well-Known Member
Yea this is exactly what I was thinkin!... My lazy ass just didn't want to make a diagram..... +rep for the bonzi
svtocusmansvt
Member
I bought a cool air light and tried to use a similar style fan it does not do anything as far as cooling goes. The fan only blows enough CFM's to be felt a few feet away. It would only be good for an intake, although you really do not need an intake fan if you have a good exhaust fan (I have an intake fan on the wall and when it is off and the exhaust is on, it will actually turn the fan from the suction in the room). Running a free flowing intake will save you a lot on electricity. The best fan to buy is a large computer fan for a smaller room, this style of fan can be used all times and will not stop prematurely like an inline fan will. Larger computer fans (axial fans) blow large amounts of CFM's along with more pressure felt over an inline fan. Also with a smaller room and a larger type of light will cause a lot of heat issues which you can solve a lot by having two intake holes and two exhaust holes. Have the light on its own intake / exhaust set up, then the room on it's own intake / exhaust. If you can vent to the attic you will be perfect to rid of all of the heat. I have tried both blowing and sucking air on the light and found sucking actually works better. When you blow air you are blowing hot air around the light in the sealed unit and causing a lot of the heat to not be pushed through the exhaust (it's just circulating inside the light fixture). When you suck air you are pulling in fresh air and sucking out the hot air from the light. Also when blowing air in I could not tough the light hood because it was way too hot, now I can touch it and it is very warm.
You can do the whole set up with one fan if you get a fan with a good amount of CFM's to pull out all of the light heat and to pull enough through a carbon filter if you use one, just try to vent to the attic or directly outside if you do this route. If you vent from a grow closet into the room you will eventually be pulling hot air back through the intake. Think of an 'Amish' heater (A box with a light and a fan).
You can do the whole set up with one fan if you get a fan with a good amount of CFM's to pull out all of the light heat and to pull enough through a carbon filter if you use one, just try to vent to the attic or directly outside if you do this route. If you vent from a grow closet into the room you will eventually be pulling hot air back through the intake. Think of an 'Amish' heater (A box with a light and a fan).