As part of the air balanacing of a room, is it necessary to use a HO Blower (such as a Vortex) to bring replacement air back into a room that is being exhausted through a HO Blower and Carbon Filter? Can a large oscillating fan with the appropriate CFM from on a filtered duct be used?
INTAKE AIR - Blower or Fan??
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Slipon
Well-Known Member
that is about how your outtake should look like:
intake in most cases only need to be passive, physics take care of the rest, as air is pulled out it have to be replaced with sumthing, keep just a bit of under pressure/negative pressure to ensure all smelly air is getting pulled out the filter, in most cases the passive intake need to be 2x to 3x the size on the out take ventilation (Etc, a 6" ventilation need passive hole/s of 12-18" depending on how strong our outtake ventilation is, with filter on a ventilation also loose about 20% effectivity, same with to many bends on the ducting)
hope this help
intake in most cases only need to be passive, physics take care of the rest, as air is pulled out it have to be replaced with sumthing, keep just a bit of under pressure/negative pressure to ensure all smelly air is getting pulled out the filter, in most cases the passive intake need to be 2x to 3x the size on the out take ventilation (Etc, a 6" ventilation need passive hole/s of 12-18" depending on how strong our outtake ventilation is, with filter on a ventilation also loose about 20% effectivity, same with to many bends on the ducting)
hope this help
jrainman
Active Member
This drawing should somehow POP UP when a OP Has a exhaust question , Just a great easy to follow diagram with a good basic solid design.... with good notes on sizing
Thanks Slip... sounds like good info. I'll have to think bout how this could work considering I have a room(s) that requires 3200 cfm of exhaust and am looking at a Vortex 14" fan to do this (2905 cfm rated)....
So let me ask this question based on the graphic you posted and the design Im looking at. To conserve space and the amount of fans that I need, woult it be possible to use this size of a fan paired with a filter and then have it run in-line with 12-1000w AC Lights? My desire is to make sure my lights stay cool and at the same time exhaust the room as needed.
If not, what would be the recommendation to keep 12,0000w cool and keep a managable system? As it stands now, I'm looking at 14" blower for exhaust and a 14" blower for intake, I'd prefer not to drop an extra grand on the fans if I didn't have to.
So let me ask this question based on the graphic you posted and the design Im looking at. To conserve space and the amount of fans that I need, woult it be possible to use this size of a fan paired with a filter and then have it run in-line with 12-1000w AC Lights? My desire is to make sure my lights stay cool and at the same time exhaust the room as needed.
If not, what would be the recommendation to keep 12,0000w cool and keep a managable system? As it stands now, I'm looking at 14" blower for exhaust and a 14" blower for intake, I'd prefer not to drop an extra grand on the fans if I didn't have to.
Slipon
Well-Known Member
wow, sounds like your getting ready to start a big operation, never did anything like that, my ventilation is on 380 cfm 
but I might consider multiple ventilations, I mean one for each room and one for the lights alone making it a sealed line so to speak, if you can keep the lights cool, you don't need to exchanges the air Etc. every minute, every 3-5 minutes would be ok if its "only" for air/co2 exchanges and not so much to cool the room/lights, lots to consider Im sure, but maybe 3x6" vents would work. one for lights and one for each room
but I might consider multiple ventilations, I mean one for each room and one for the lights alone making it a sealed line so to speak, if you can keep the lights cool, you don't need to exchanges the air Etc. every minute, every 3-5 minutes would be ok if its "only" for air/co2 exchanges and not so much to cool the room/lights, lots to consider Im sure, but maybe 3x6" vents would work. one for lights and one for each room
Yes, it's a new Big Operation... Thanks to Legalization (Finally!!)wow, sounds like your getting ready to start a big operation, never did anything like that, my ventilation is on 380 cfm
but I might consider multiple ventilations, I mean one for each room and one for the lights alone making it a sealed line so to speak, if you can keep the lights cool, you don't need to exchanges the air Etc. every minute, every 3-5 minutes would be ok if its "only" for air/co2 exchanges and not so much to cool the room/lights, lots to consider Im sure, but maybe 3x6" vents would work. one for lights and one for each room
But yeah, that's the challenge.
AC the lights = 1 fan, Filter & Exhaust the room = 1 fan, Replenish the exhausted air = 1 fan... For a total 3 fans for each room = about $3,000 or so I'd ranther not spend (i may be stretching this a bit). My design now only uses 2 fans plus a duct booster which is much cheaper than adding a third fan. If I reduce the size of the exhaust fans and use one for cooling the lights, and one for air filtration, then the exhausted air through the lights will smell. If I use intake air to cool the lights with a smaller fan and a smaller fan for just straight intake, I'll still need the large fan for exhaust but then I'm also coming up short on the exhaust by about 300cfm.... (requiring another fan)
See my dilemma?
Anyones input is welcome on this. The more intelligent answers the better to help solve this issue I'm having!!
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