Apologies in advance

haze010

Well-Known Member
Can we all agree to stop derailing the OP's original quest for help...


My personal choice as im more than comfortable building things and working with electricity is to DIY strip build or board build.

If i had a problem doing DIY id turn to


If budget wasnt a concern and i wanted an easy just plug it into the wall and go with a good warranty then id go with any of those name brands.
 

haze010

Well-Known Member
Exhaust system no idea.
You want an Inline fan with a carbon filter attached, also want a few decent oscilating fans inside the tent to create air movement. Youre 4x8 tent has 192 cubic feet in it. My rule of thumb for exhaust purely for smell is exchange at twice a minute will be enough when peak flower so youd want at least a 400cfm fan and carbon filter six inch at the minimum. Personally i perfer to buy bigger than required for fans and have a 400cfm in my 4x4 because you can always turn it down when not needed but if you need more airflow because of humidity its nice to have extra power.
 

ThatGuy13

Member
AC Infinity was recommended. Cloudline S8? smaller mounted fans for air movement? Assuming 2 should be enough? Looking into the alternate lights now. Thoughts shortly
 

haze010

Well-Known Member
AC Infinity was recommended. Cloudline S8? smaller mounted fans for air movement? Assuming 2 should be enough? Looking into the alternate lights now. Thoughts shortly
I dont know much about individual brands on fans. The key metric for inline exhaust is the CFM, after that the difference between cheap and expensive from my experience is usually just how noisy it is and how long before it dies.

For inside the tent air movement helps prevent humidity based issues and things like powdery mildew. For a tent as big as a 4x8 if its small fans like those 6 inch ones youd need more than a few. Id go with the larger ones because losing a whole crop to PM over a $30 fan will just ruin your day.
 

ThatGuy13

Member
Looked into HLG last night from a different forum, Timber seems nice, costly and heavy though. Gavita looks like they need to be kept a decent distance from the plants. considering the tent environment that seems like a bad idea. not to be a pessimist and shoot holes in everything. Looking into danklightco.com now. can i post a link for the fan im looking at?
 

Lockedin

Well-Known Member
Fans
I hesitate to bash ANY brand --- if it grows weed for you, good for you!

BUT - I'm on my 3rd vivosun 4" fan. They've all lasted about 2 weeks before the impeller loses balance and it rattles itself to death.
edit - Vivosun has been good about warranty service, but 3 fans (and this one is starting to rattle too)?

@haze010 's post above hit like a rock to the forehead - I think I simply underestimated how much air I need to exchange in a 4x4.
Considering adjustable fans capable of moving 400cfm on intake and exhaust - balanced for slightly
negative pressure.
 

Lockedin

Well-Known Member
also, what's the current general opinion on a few large lights vs. more lights of a smaller size?
From what I've read, general opinion is that there are a lot of opinions :D
Here's one of the more recent threads:

 

haze010

Well-Known Member
I go by the cubic feet of your area, for your tent is 192 cubic feet. With the stinkiest ive ever grown 2 exchanges a minute was more than sufficient, so anything with a 400 CFM (cubic feet per minute moved) should do the job for odor. Higher than that is a good bonus if you live in a humid climate like i do.
 

haze010

Well-Known Member
From what I've read, general opinion is that there are a lot of opinions :D
Here's one of the more recent threads:

The reality is any of these in a strips/bars type configuration or a board config will grow fantastic flowers. The way some of them obsess over having the best light or the highest efficiency reminds me of car guys bragging about their horsepower. The best of the best just seems like a waste of resources, doubling your cost for an extra few percent efficiency, but thats just my opinion, take it or leave it.
 

JoeBlow5823

Well-Known Member
AC Infinity was recommended. Cloudline S8? smaller mounted fans for air movement? Assuming 2 should be enough? Looking into the alternate lights now. Thoughts shortly
This filter

growershouse.com

Phat Filter 39 inch x 8 inch, 950 CFM
growershouse.com




This fan, 8''

growershouse.com

Vortex Inline Powerfans VTX Series 10 year warranty!
growershouse.com

This fan speed controller

https://www.amazon.com/Beleeb-Voltage-Transformer-Variable-Regulator/dp/B07JYBB1HS/ref=sr_1_1_sspa?dchild=1&keywords=variac&qid=1598934067&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyS1RBSjhCUzJKQlcmZW5jcnlwdGVkSWQ9QTAwOTk3MjQzSVdZOEJFQlNCSlgyJmVuY3J5cHRlZEFkSWQ9QTAyMTY0NTAzVFY5TUczMDYzNThPJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

Growershouse.com has a 10% off promo code if you search for it. That vortex fan has a 10 year warranty on it. Phat filters are the best, just ask @Renfro

With that setup you should only have to run it at about 30-40% power which will keep it extremely quiet. A 6'' fan at 100% sounds like a jet engine. A 8'' fan at 50% will move just as much air but only produce less than half the noise.
 

haze010

Well-Known Member
Yeah vortex for sure makes good stuff, i dont have one of their inlines but i have an air circulator and its easily the best quality ive ever owned. Im just a bit more of a cheapo than that haha. 10 year warranty tho i should be buying those.

That seems kinda expensive for a carbon filter tho, i always just go cheapo on those and never had an issue, i think mines a cheap vivosun there too. The 8" ones are like $100USD on amazon.
 

Lockedin

Well-Known Member
Thers a thread in organic section on how to grow with FFOF without adding the liquid nutes.Cant remember what its called but it is a good read.

Fox Farms guide - this helped me a lot.
 
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