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Most efficient way to cool 8KW?
- Thread starter Stealthy
- Start date
hey i don't mean to hijacker your post but can u help with this?
I have a basement grow in a 6x6x8=288cu.ft. room. Looking to cool 2 600 watters in 6" cool sun 2's.This room will be sealed besides passive intake (6 " at bottom of room), active exhaust(6 in at top). I need the exhaust to run 24/7 so no smell leaks out. Maximum length of whole exhaust set up will be 6 ft with everything.(lenght of room). Will be using panasonic whisper in-line fans(quiet).where is the best place to put the fan in this setup? or use 2 smaller fans?fans sizes to cool two lights? what size scrubber would work best with this setup? Just lookin to see if anybody here has any suggestions for me to make this work better? or any possable issues?. with my current picture i would be pulling through the scrubber but pushing threw the lights...hmmm. the room will be sealed except for the intake which will be passive (non-powered) with this setup will there be enough negative pressure to suck in fresh air from the intake. tryin to use 1 exhaust to cool my lights and bring in fresh air that is scrubbed at the end. maybe two smaller fans(of equall cfm) will work better? should i run 2 separate systems?is there a better way? thanks guys
I have a basement grow in a 6x6x8=288cu.ft. room. Looking to cool 2 600 watters in 6" cool sun 2's.This room will be sealed besides passive intake (6 " at bottom of room), active exhaust(6 in at top). I need the exhaust to run 24/7 so no smell leaks out. Maximum length of whole exhaust set up will be 6 ft with everything.(lenght of room). Will be using panasonic whisper in-line fans(quiet).where is the best place to put the fan in this setup? or use 2 smaller fans?fans sizes to cool two lights? what size scrubber would work best with this setup? Just lookin to see if anybody here has any suggestions for me to make this work better? or any possable issues?. with my current picture i would be pulling through the scrubber but pushing threw the lights...hmmm. the room will be sealed except for the intake which will be passive (non-powered) with this setup will there be enough negative pressure to suck in fresh air from the intake. tryin to use 1 exhaust to cool my lights and bring in fresh air that is scrubbed at the end. maybe two smaller fans(of equall cfm) will work better? should i run 2 separate systems?is there a better way? thanks guys
Last edited:
treehuggers
Active member
postmaster
New member
not to dig up a old long thread but two 500cfm fans in parallel don't make 1000cfm. Airflow doesn't work that way, I can't remember the name of the rule but the airflow of each fan is divided by a constant depending on the number of fans. I'll try to find the figure today, but I'm pretty sure two 500's in parallel don't make 1000.
postmaster
New member
I can't find the rule's name, but basically you only double flow volume at free delivery. Basically, you'll only double the airflow if all pressure at the point of entry into the fans is static, and there is no backpressure (can style fans eliminate backpressure though) so I'm kinda right and kinda wrong.
Great thread. Can't believe I missed it for so long.
Finishing my room now, sealed 12x16 with 4 one-thousand watters over two 4x8 tables set a couple feet apart. Two 8" manifolds for air cooling, I was planning on using two 8" eco plus (740cfm each) fans, one intake, one exhaust. After reading this thread, it seems that only one 8" exhaust fan pulling should be necessary. Also have an 18,000btu window ac pumping. Lights will run at night with outside temps in the 40s and 50s.
I think 8" was the largest HD sold in the rigid ductwork. They had a bunuch of the five footers inside each other on the shelf and I went to separate out a few and sliced my hand up bad. Bled everywhere...what fun. Had to take a week off building the room...#$%^&!! Hopefully I'll be OK with my 8" manifolds, as they are already built, but where do you guys find the larger diameter, 10"+? Big thanks =)
Finishing my room now, sealed 12x16 with 4 one-thousand watters over two 4x8 tables set a couple feet apart. Two 8" manifolds for air cooling, I was planning on using two 8" eco plus (740cfm each) fans, one intake, one exhaust. After reading this thread, it seems that only one 8" exhaust fan pulling should be necessary. Also have an 18,000btu window ac pumping. Lights will run at night with outside temps in the 40s and 50s.
I think 8" was the largest HD sold in the rigid ductwork. They had a bunuch of the five footers inside each other on the shelf and I went to separate out a few and sliced my hand up bad. Bled everywhere...what fun. Had to take a week off building the room...#$%^&!! Hopefully I'll be OK with my 8" manifolds, as they are already built, but where do you guys find the larger diameter, 10"+? Big thanks =)
Y
yamaha_1fan
For the larger ductwork you need to find a HVAC supplier. Most sell to trade only but I am sure you can find one that sells to DIYers. Just look in the yellow pages.
Or online
Or online
G
Guest
Stealthy,
Have you considered running the lights flip flopped? This way you only need to cool 4k worth of light instead of 8k? 8k is something of a beast.
You can watercool them now a days too
Have you considered running the lights flip flopped? This way you only need to cool 4k worth of light instead of 8k? 8k is something of a beast.
You can watercool them now a days too
coldoneror
Member
this thread is full of information definitely worth bookmarking
T
TwinTurboGuy
I have a question on Celsius ventilation setup.
If you use two 8 inch fans rated at 700+ cfms, one on the intake side pushing and the other pulling, would this pull 1400+ cfms from the room? Or would it just stay at a steady balance since the pressure is the same?
If you use two 8 inch fans rated at 700+ cfms, one on the intake side pushing and the other pulling, would this pull 1400+ cfms from the room? Or would it just stay at a steady balance since the pressure is the same?
