mycabinetisgreen
Member
Longtime lurker, first time poster. Hello, all 
I'm consulting on a potential cabinet grow. It looks like it will be about the size of an armoire or a two-door utility cabinet. I'm sifting thru piles of invaluable information here and elsewhere, but thought I'd post to get some feedback on an idea that I've had recently that I haven't seen implemented as yet.
This is a tight-budget box, so I'm doing my best to keep the cost down for the owner. As a result, I'll be trying to DIY as much as possible. Expect to post many more questions, but this one is about ventilation.
I've decided the best bet for a carbon filter scrubber will be a DIY build (would link but can't). Since the prospective grower would prefer the unit to be as silent as possible (as well as affordable), I've been batting around the idea of PC fans. Given the size of the space, I understand this might not be ideal due to the power behind PC fans.
My design attempts to mitigate some of that lack of power, but I lack the technical understanding to know if it is feasible. That's where I hope to hear from those with expertise.
My thinking is that placing fans on either end of the scrubber and then two more fans in the exhaust holes might increase their overall ability to pull air through the filter and out of the box. I don't know that those fans on either end of the filter are necessary, but I would assume they would reduce the loss and strain from simply mounting two fans to vent air out. My reasoning behind doing dual-ended ventilation is that the fans I've seen are rated anywhere from 60-100 CFM and the box itself would likely be around 5'x3'x2', most likely less. Assuming some loss from the filter and ducts, even if the fans are dramatically overrated I would think two might do what I want them to do. If they were in fact overkill, all the better, I can lower their speed and reduce the noise they produce.
As is evident in the diagram, the exhaust fans would be mounted in the top of the cabinet and the filter would be attached near the ceiling.
Thoughts?
I'm consulting on a potential cabinet grow. It looks like it will be about the size of an armoire or a two-door utility cabinet. I'm sifting thru piles of invaluable information here and elsewhere, but thought I'd post to get some feedback on an idea that I've had recently that I haven't seen implemented as yet.
This is a tight-budget box, so I'm doing my best to keep the cost down for the owner. As a result, I'll be trying to DIY as much as possible. Expect to post many more questions, but this one is about ventilation.
I've decided the best bet for a carbon filter scrubber will be a DIY build (would link but can't). Since the prospective grower would prefer the unit to be as silent as possible (as well as affordable), I've been batting around the idea of PC fans. Given the size of the space, I understand this might not be ideal due to the power behind PC fans.
My design attempts to mitigate some of that lack of power, but I lack the technical understanding to know if it is feasible. That's where I hope to hear from those with expertise.
My thinking is that placing fans on either end of the scrubber and then two more fans in the exhaust holes might increase their overall ability to pull air through the filter and out of the box. I don't know that those fans on either end of the filter are necessary, but I would assume they would reduce the loss and strain from simply mounting two fans to vent air out. My reasoning behind doing dual-ended ventilation is that the fans I've seen are rated anywhere from 60-100 CFM and the box itself would likely be around 5'x3'x2', most likely less. Assuming some loss from the filter and ducts, even if the fans are dramatically overrated I would think two might do what I want them to do. If they were in fact overkill, all the better, I can lower their speed and reduce the noise they produce.
As is evident in the diagram, the exhaust fans would be mounted in the top of the cabinet and the filter would be attached near the ceiling.
Thoughts?
