Cooling a 1000w light?

BudJunky

Well-Known Member
Hey guys I was wondering what all it takes to cool a 1000w light with a Magnum XXXL Reflector. Like what CFM fan would you reccommend? Would you reccommend 6" or 8" reflector/ducting/etc.? Would the stanley blower mod be sufficient?

With nothing on in the room it stays about 68-70F and the room demensions are 6'6" x 8' x 6'5" (L x W x H)

Here's a link to the stanley blower mod if you haven't heard/seen it.
http://www.icmag.com/ic/showthread.php?t=29341

Will I need any type of filter so dust and hair and stuff isn't blown over the light or is that fine?
 

Jonus

Well-Known Member
The issue with the 1000w light is not so much the room temperature, its the direct radiant heat on the tops of your plants. As for filters, are you running a carbon filter of any sort, if not you might need one when smell becomes an issue during budding.
 

BudJunky

Well-Known Member
I've got some experience with my 1000w so i'm not worried about radiant heat , nor did I ask about it . I do plan on incorporating a carbon filter, but shouldn't that be put on the exhaust for the room so as to scrub the air coming out of the room rather than scrubbing the air being blown over the bulb??

I'm specifically asking how to cool a 1000w light with the reflector I mentiontioned. I need to know what range of cfm inline fan to look for or if the stanley blower mod will work. I'm also asking if it's necessary/safer to use a filter on the air being blown over the light. :eyesmoke:
 

BudJunky

Well-Known Member
Eh anybody got any ideas?

I can narrow it down because I prefer buying locally..

I can use either

1. Stanley Blower (~265cfm)
2. Sunleaves 6in. (160cfm)
3. Sunleaves 6in. Windtunnel (409cfm)
4.Can Fan 6in. (270cfm)
5.Can Fan HO 6in. (440cfm)
6. Vortex 6in. (449cfm)
 

Nate627

Active Member
Eh anybody got any ideas?

I can narrow it down because I prefer buying locally..

I can use either

1. Stanley Blower (~265cfm)
2. Sunleaves 6in. (160cfm)
3. Sunleaves 6in. Windtunnel (409cfm)
4.Can Fan 6in. (270cfm)
5.Can Fan HO 6in. (440cfm)
6. Vortex 6in. (449cfm)
Can Fan 6" would work fine. Also use a IR Cover for the reflector if you can. I put one of these on my sun system 6" w/ 1000 and the results were amazing.
 

The Good Doctor

Active Member
Personally, I use a 10" Vortec( for each hood) with a reducer going from 10" to the 6" hood. I use 6" ducting for cost and space.

But if it works for you, its right!
 

BudJunky

Well-Known Member
Could you possibly post a link to an example of what you're talkin about? I have no idea what an IR cover is. I can only guess that it has something to do with infrared.
 

BudJunky

Well-Known Member
I'm trying to be cost effective right now so maybe I should rephrase my question.

What would the be the cheapest fan I could get away with? What would you say is the minimum CFM rating I should even try using to cool a 1kw?

And how much do those covers help keep your room cool? Would you say it was like a 5-10 degree difference or so?
 

Nate627

Active Member
And how much do those covers help keep your room cool? Would you say it was like a 5-10 degree difference or so?
Cant say cause the room was already controlled by a dedicated AC unit. What I can say is the room is WAY cooler now and the AC unit doesn't come on nearly as much as before the cover.

Also you can almost touch the glass before you feel really hot heat, i guess about 3" away would be fair to say.

It looks almost like the same stuff used in those delivery pizza ovens, like the ones they use to keep the pizza warm when its in the car. :mrgreen:
 

The Good Doctor

Active Member
If you can get fresh air from outside to push through your hood, it will cool down even more. One issue, depending on how many plants you are growing, you might want to consider keeping the light up a bit. One plant, cool, put it right on them. But if you have a 4x4 table with 12 to 24 plants or a 4x8 with 12 to 48 plants, then you have to keep it up, for best light coverage of total square footage. Even the best hood, only can cover so great an angle.
 

BudJunky

Well-Known Member
Judging by the number of views this got, I'd say it's probably a hot topic on this forum so I figure'd I'd give the results of what I did.

Magnum XXXL 6" A/C Reflector ($215.95 +tax))
Stanley Blower Fan ($49.99 +tax & shipping)
6" Ducting ($24.99)
6"- 4" reducer [To go on blower to use as exhaust fan] ($4.99)
4x 6" hose clamps ($7.96 + tax)

In my 6'6" x 8' x 5'5" (W x L x H) tent it stays about 80 degrees (sometimes slightly lower at the canopy.) while the temp around the room is about 72. I am also exhausting the air from my tent to the room around it so it may stay even cooler if it's vented outside or to another room. I'll probably post some pics later if anybody's interested.

Also wanted to ask if temps b/w 78 and 85 are acceptable for growing w/o CO2..
 
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