1000w hps 6'' or 4'' to cool it?

onefortheroad

onefortheroad

Active Member
i will be running a thousand watt hps and a 10 x 10 room. To cool the light should i use a 6 or 4 inch inline fan? I see anywhere from 70 cfm to 250. what do you guys think would be optimal for this light? Should i bring the air from under my house or from the room? meaning should i have an intake from an outside source?
 
smppro

smppro

Well-Known Member
You need to do a lot more research. I have a 6in with 265cfm for my 400w, i would say you need atleast that, fans can go over 2000cfm
 
onefortheroad

onefortheroad

Active Member
no havent picked up the light yet thats one of my questions which style? the room will be built right AC/humid/all self controled but never grew indoors and want to have it right the first time. thanks for your time man
 
nickfury510

nickfury510

Well-Known Member
onefortheroad said:
i will be running a thousand watt hps and a 10 x 10 room. To cool the light should i use a 6 or 4 inch inline fan? I see anywhere from 70 cfm to 250. what do you guys think would be optimal for this light? Should i bring the air from under my house or from the room? meaning should i have an intake from an outside source?
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go with the six inch. I have a 6" s&p td150 pulling my exhaust room air through my hood to cool 1000w and the glass stays cool to the touch.
 

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Smokealotapotamus

Smokealotapotamus

Well-Known Member
I have been using a 1000w hps to flower for about a year. I started out using a 4" Vortex in line fan to cool a Sun Supply Yieldmaster II 6" glass covered hood. I necked down one 6" opening to the hood to connect the 4" fan. It worked just fine in my opinion my plants would get closer than 6" to the light and not suffer heat stress (althought this was because I let my plants height get away from me, I like to keep them about 1 foot minimum away from the light and 1.5 feet optimum distance just to maintain better coverage, ).

Ithen used a 6" Vortex to cool the same hood and it worked even better, although I feel it was not necessary.

I now use Sun Supply Magnum XXXL hood with 1000w hps and the 6" Vortex and its THE POO! I realized what a difference a nice hood can make, my yield and quality has increased dramatically from this one investment.

In short: 4" worked just fine for me to cool a 1000w light, but 6" worked even better :blsmoke:

edit: Looks like nickfury has the same magnum hood I do (the one with the air intake). My 6" fan also like nicks does more than just cool a single light, it also pulls air through a large carbon scrubber as well before exhausting.
 
nickfury510

nickfury510

Well-Known Member
Smokealotapotamus said:
I have been using a 1000w hps to flower for about a year. I started out using a 4" Vortex in line fan to cool a Sun Supply Yieldmaster II 6" glass covered hood. I necked down one 6" opening to the hood to connect the 4" fan. It worked just fine in my opinion my plants would get closer than 6" to the light and not suffer heat stress (althought this was because I let my plants height get away from me, I like to keep them about 1 foot minimum away from the light and 1.5 feet optimum distance just to maintain better coverage, ).

Ithen used a 6" Vortex to cool the same hood and it worked even better, although I feel it was not necessary.

I now use Sun Supply Magnum XXXL hood with 1000w hps and the 6" Vortex and its THE POO! I realized what a difference a nice hood can make, my yield and quality has increased dramatically from this one investment.

In short: 4" worked just fine for me to cool a 1000w light, but 6" worked even better :blsmoke:

edit: Looks like nickfury has the same magnum hood I do (the one with the air intake). My 6" fan also like nicks does more than just cool a single light, it also pulls air through a large carbon scrubber as well before exhausting.
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:joint::mrgreen: isnt that magnum hood friggin great. i love that no matter where i am in my grow room the back of my neck burns:mrgreen:
 
Smokealotapotamus

Smokealotapotamus

Well-Known Member
onefortheroad said:
smokealot thanks man i need as much info as possible just want to do it right thanks to all.
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Fo sho. I'd get the 4" if you're ballin on a budget and you know all its gonna have to do is cool that one light. If you think you ever might want to expand by adding a light or a carbon scrubber that you might need the fan to do some extra work, then I'd spring for the 6" :bigjoint:
 
Smokealotapotamus

Smokealotapotamus

Well-Known Member
nickfury510 said:
:joint::mrgreen: isnt that magnum hood friggin great. i love that no matter where i am in my grow room the back of my neck burns:mrgreen:
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Fo serious! Definitely love that thing. So much light...so even...*moan* *moan*

edit: And props on your setup mang, looks badass! Beatiful lookin girlies. I'm envious that you got both lights going. Seein some people's pics makes me turn green like their plants haha.
 
Smokealotapotamus

Smokealotapotamus

Well-Known Member
Man...not to derail or anything, but I just finished off a crazy breakfast at 7:00am. Eggs w/ cheese, tabasco, & salsa. Gorton's beer battered fish fillets also w/ tabasco. Coffee to speed things up a bit....definitely a hangover breakfast haha.

I can hear by colon screaming in terror already.
 
nickfury510

nickfury510

Well-Known Member
Smokealotapotamus said:
Fo serious! Definitely love that thing. So much light...so even...*moan* *moan*

edit: And props on your setup mang, looks badass! Beatiful lookin girlies. I'm envious that you got both lights going. Seein some people's pics makes me turn green like their plants haha.
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sooooo even. it gives me the best canopy i have ever seen. :joint: thanks for the props. the second light is only a 400w for some personal variety:mrgreen:
 
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