Venting and Grow Room efficiency ( get your Ducts in a row)
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growin4myhead
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Try PM'ing the person you want to talk to that usually works faster!
subcool
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Its best to bring in air from very low so that its cooler air. Typically in a large set up we pull the cool air from outdoors using 8" or 2-6" pipes.
I have no experience with cabs thats why I didnt respond but the answer is any cool fresh air source and id use a small pice of 6" flex to prevent light pollution paint the inside of the flex black
Sub
durbanmistyman
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I am in a 8ft high by 6ft wide by 2.5 ft deep room with a 4'' dryer exhaust hole in wall going to outside. I have a 600 watt digital lumatek ballast with an aluminum wing reflector (no cooltube) i tried to go cheap on the exhaust and its not doing the job. I have a 50 cfm bathroom exhaust fan pulling hot air from the room and exhausting out the dryer vent hole to the outside. no filter or scrubber. I have a 4" hole with dryer vent to block light from entering as my passive intake mounted at the lower lefto over cover, adjacent the exhaust fan so the air must cross the entire room (air being pulled into room is approx. 70 degrees). i have several fans circulating air within the room. But with this my temps still get up to 90 degrees with the light only on for an hour and a half an exhaust going constant. I am thinking of using a 435 cfm centrifugal inline fan to exhaust air outside. Do you think doing this will cool the room enough? Or will i have to cootube the light with cold air from attic and exuast it through same hole? will running so much air through this room (120 cubic feet) be to much? I plan to grow six plants, will the odor be to extreme outside( the vent going outside is two stores up 35 yards from side walk) as im not currently using any filters?
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subcool
Well-Known Member
Can you clean up the query and ask a few direct questions possibly your all over the place
You will need a filter yes you will also need the 465 is nig enough but it will need adequate intake in order not to starve for air.
Sub
durbanmistyman
Well-Known Member
sorry i just wanted to make sure you could understand my setup. U pretty much answered all my questions from my last post. But i have another. What size and type of filter would you recommend for my setup with 6 plants? (assuming im using the 435 cfm inline fan exhausting through my 4" dryer vent hole)
Hey man, I appreciate you getting back to me. I wasn't pissed or anything. I just wanted to get the thread back up and moving. I know that sometimes they go into the wind you know. Anyway, thanks for the info on cooler air. I got another one for you. Would (2) 4" Vortex fans be sufficient enough to bring in and exhaust air from that space (7'x4'x2') The fans are 172 cfm. Could I just use a silk screen as a buffer/preventative for the intake fan or would I need something more efficient?
durbanmistyman
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Any recommendation on filter? would you reccomend 6 plants (60% sativa, 40% indica) for a 6 ft wide 2.5 ft deep 8 ft tall room wtih 600w mh/hps
durbanmistyman
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Were you referring to my question on a carbon filter? Are you reccomending a 600cfm capacity carbon filter? if so where can i get a good deal on them?
durbanmistyman
Well-Known Member
got a 171 cfm would CAN-FILTERS 9000 series work with this?
ommpCaregiver
Active Member
I also would like to know how to set up a good filter for intake. I don't have the fume/vapor requirement, just spores and dust from outside.
The only filters I find at home depot are big squares, nothing suitable for 6 or 8inch ducting.
the question: how to filter intake (hopefully different graded filter)?
Thank you, my next project is to cut down on using 1200watt ac (at least not a window unit...)
durbanmistyman
Well-Known Member
get a hepa filter it will filter out all spores and they are made to fit on a 6 or 8 in pipes
durbanmistyman
Well-Known Member
as stated above if you are pulling air in from outside get a hepa filter
Subcool, I would like to start off by saying that I am very impressed with your seeds so far! I am currently growing agent orange, deep purple, and jillybean. I also have dairy queen, querkle, and pandoras box but only received them as freebies so only 2 seeds of each 
can't wait to try them!!! Keep up the amazing work. I am a new caregiver and am upgrading my grow to a new location that I can fit more plants. I would really appreciate your help with it and I was also wondering do you offer free seeds or something along those lines to caregivers to try out your strains? that would be awesome but anyways to my questions for you
I am upgrading my medical grow and have some questions on my new design.
I am planning on having 3 rows with each row having 9 1000w XXXL air cooled reflectors. each row will be 4ft wide and 36ft long. There will be a space of 3ft between each row so that the plants are each to access. I live in the north west USA so during the summers it can get up to 100 and the winters get down below zero at times. I am planning on having the intake for my lights to be pulling air from the crawl space and exhausting it outside or back into the house during the winter to help with heating. Im sure that pulling air from the crawl space (which is 4ft tall with 1360 square feet) I will need to have an intake fan for the crawl space/basement to help create a positive pressure. I will also be pulling air across the lights compared to pushing it since it is more efficient.
My Questions:
How many reflectors can I hook up in a row? I can't imagine I could hook up all 9 in a row with each flowing into each other cause after the 2nd or 3rd light wouldn't the air be so hot it wouldn't be cooling the lights?
What size fan will I need to use to cool the lights? I've read that I should have around 250-350cfm per light but is that right?
can't wait to try them!!! Keep up the amazing work. I am a new caregiver and am upgrading my grow to a new location that I can fit more plants. I would really appreciate your help with it and I was also wondering do you offer free seeds or something along those lines to caregivers to try out your strains? that would be awesome but anyways to my questions for youI am upgrading my medical grow and have some questions on my new design.
I am planning on having 3 rows with each row having 9 1000w XXXL air cooled reflectors. each row will be 4ft wide and 36ft long. There will be a space of 3ft between each row so that the plants are each to access. I live in the north west USA so during the summers it can get up to 100 and the winters get down below zero at times. I am planning on having the intake for my lights to be pulling air from the crawl space and exhausting it outside or back into the house during the winter to help with heating. Im sure that pulling air from the crawl space (which is 4ft tall with 1360 square feet) I will need to have an intake fan for the crawl space/basement to help create a positive pressure. I will also be pulling air across the lights compared to pushing it since it is more efficient.
My Questions:
How many reflectors can I hook up in a row? I can't imagine I could hook up all 9 in a row with each flowing into each other cause after the 2nd or 3rd light wouldn't the air be so hot it wouldn't be cooling the lights?
What size fan will I need to use to cool the lights? I've read that I should have around 250-350cfm per light but is that right?
subcool
Well-Known Member
Subcool, I would like to start off by saying that I am very impressed with your seeds so far! I am currently growing agent orange, deep purple, and jillybean. I also have dairy queen, querkle, and pandoras box but only received them as freebies so only 2 seeds of each
I am upgrading my medical grow and have some questions on my new design.
I am planning on having 3 rows with each row having 9 1000w XXXL air cooled reflectors. each row will be 4ft wide and 36ft long. There will be a space of 3ft between each row so that the plants are each to access. I live in the north west USA so during the summers it can get up to 100 and the winters get down below zero at times. I am planning on having the intake for my lights to be pulling air from the crawl space and exhausting it outside or back into the house during the winter to help with heating. Im sure that pulling air from the crawl space (which is 4ft tall with 1360 square feet) I will need to have an intake fan for the crawl space/basement to help create a positive pressure. I will also be pulling air across the lights compared to pushing it since it is more efficient.
My Questions:
How many reflectors can I hook up in a row? I can't imagine I could hook up all 9 in a row with each flowing into each other cause after the 2nd or 3rd light wouldn't the air be so hot it wouldn't be cooling the lights?
What size fan will I need to use to cool the lights? I've read that I should have around 250-350cfm per light but is that right?
I would not kook up any lights in series If you study my build each light gets its own intake and exhaust from a main supply duct.
if you hook them up in series the temp will continue to rize as it passes across each hood.
300-350 is perfect.
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