Smell Proofing Question

After looking at what a temp controller is the main difference between that and the speed controller is the temp controller has a thermostat and auto shutoff-on capabilities. With a negative pressure room for smell you would never want to turn off your exhaust or intake fans.
More advanced temp controllers look like they also control the devices that control humidity, Co2 if one uses it among other environmental factors. No need for that unless your planning on spending a lot more money.

Well whether you need to run a/c or central air or not is a separate factor. A lot will depend on where you can exhaust the exhaust. Mine runs up my gas fireplace roof exhaust and out, before i just ran it into a larger room and temps were a little harder to control then.

I only trust products I have used. CAP fans and Can filters have good history.

With your size of room a 6" would need to run at full strength or more for two 1000s. And 8" is only 20-30 or so more, will move 700+ CFM instead of the maybe 500 CFM a 6" would do and it will be quieter as most larger diameter fans don't need to run at such high RPMs therefore less noise, not always true but mostly.

I buy nothing but Can carbon filters and CAP and MaxFan inline fans, MaxFan is actually a branch of Can Filters. CAP fans are more affordable, just as quiet and have 5 year warranties. They are a bit heavier but nothing is more heavy then the carbon filter and it's fairly easy to hang a carbon filter with a bungee or the heavy duty lock hangers so a CAP fan wouldn't be much of a struggle to hang. The trick there is lining them up right so the ducting running from the carbon to the fan is as straight as possible. Use gorilla tape. The only thing you will need to screw in with a drill are the tap screws to connect the 6 or 8" flange to the carbon filter and the ceiling mount for the CAP fan, in which case if screwing into wood 2x4s which is what I use to hang stuff from use regular drywall screws.

I wouldn't worry about veg smelling either, but I have a carbon filter setup for that to because I'm anal.

There you go, a cheaper 8". Not sure of the quality or loudness, or amp rating, but it also has a 5 year warranty.

Yes. Carbon filters usually come with a flange, or you have to buy it separately but that is only 5-10 dollars. They come in all sizes so all you do is screw the flange to the carbon filter and you'll have the exact diameter you need to connect it to your fan, or ducting in this case being it goes CARBOn FILTER--Ducting--Fan Ducting>>>>>out

I see it all the time to. I talked with someone at Can Filters years ago and he said connecting the fan directly to the filter will cause much more vibrations which will move around and break up the carbon more therefore hurting the life of the filter. I first called just to see if I could avoid not drilling through my fan to connect it to the flange and instead use gorilla tape, he told me yes and then explained to me that tidbit.

So, what sizes of fans and filters do they have? 6", 8", 10", and 12"? Fans match filters? Just wanna make sure I got this straight. I swear I read that a fan was pulling to hard for one of the filters...

I'm not sure anyone makes 10", it usually goes from 8 to 12.

It goes 4", 6", 8" then 12". I use a 4" fan-filter fro my dry room.

The only thing you need to be sure of is how many CFMs your room needs with those two 1000s. According to my calculations using a greenhouse cfm calculator system I get 900 CFM assuming your height in the 10x10 room is between 7-8 feet for a complete exchange of air in under 1 minute. Marijuana flower rooms need about that or even one full exchange in 2 minutes so we can safely say your CFM needs can be met with 500 CFMs. Add in the 1000s by adding about 20% per light from the 500 we get 700 CFMs, about the rate of the 8" fans. Now you need to match up a carbon filter in CFMs. The one I linked was rated at 600 CFM which is fine, with a speed controller we can take a 720 CFM rated fan down to around that and you still will be exhausting air at better then one full exchange per every 2 minutes. Well within the zone. You could bump up to a more powerful 8" or a 12" but I overestimate CFM needs to begin with so this setup is good.

So basically. We match up a fans CFMs max with a Carbon filters CFM max the best we can, can be off by some with no issues. It's better to exhaust below the carbon filters CFM rating a bit to more guarentee the odor is masked but I run mine over the max and I've been using my Can filter for 20 months and it still works.

As for actual size of fan and carbon filter connections, you just buy the size flange you need to match the size of the fan. That 8" hydrofarm fan you found will fit perfectly into the carbon filter using a 8" flange.

One can either pre-tape the entire setup before hanging it, but I prefer to just tape the short piece of ducting to the filter then hang and secure the filter and fan, then I tape the other end of the short ducting to the fan, then the long ducting to the other end of end. How you will guide and hang the long length of ducting to it's destination is another thing you should think about. I just use 1/8" clothesline rope and loop around the ducting every 5-6 feet or so and secure that to the doors upper baseboards or from ceiling hooks ect.

It's not the funnest thing to do b

Thanks man, I appreciate the info. I may beat your brain some more over the week... Still trying to figure out the best fan / filter combo for around $200-$250. I got to remember I'll need the fan / filter controllers, not to mention the wood to board off the windows, ducting, and all that.

What brands of fans / filters are known for quality? You said CAN, but anything else?

If anyone has links to good fan / filter setups, please share.

Hydrofarm? (http://www.horticulturesource.com/product_info.php?products_id=6383)

Ecoplus? (http://www.ebay.com/itm/ECOPLUS-SUPREME-8-8-INLINE-FAN-740CFM-5-Year-Warranty-/110831106966?_trksid=p3284.m263&_trkparms=algo=SIC&its=I&itu=UCI%2BIA%2BUA%2BFICS%2BUFI&otn=21&pmod=390277100626&ps=54)

Those are some I've came across....

What about Gro1?

I'd jump on that $99 Hydrofarm fan you found on Ebay. I'd also have it shipped to a different location unless you're legal.

Then just buy an 8" CAN filter, Phresh filters are good too. Running the filter below it's rated CFM will extend the life of a filter in a smaller room.

Anytime. And I will be around here often.

That hydrofarm 8" is fine, but that first one you linked is cheaper, you should be able to find it for 99.

BIG PRICE and some quality difference between the Hydrofarm and ecoplus. The only real advantage of the ecoplus is most likely a much lower amp rating then the hydrofarm. I'd stick with the hydrofarm or another CAP fan like the one I linked for 99-110 and invest in a Can carbon filter.

I can't suggest other carbon filter brands because I have never used them. I do have a generic filter in my veg but there is little need for high quality carbon filters in veg stage.

So 99 for that hydrofarm and here is the cheapest place I found for that 8" 600 CFM can filter

http://www.amazon.com/Can-Filter-8-600-CFM/dp/B001H3KEPU

keeps you near that 200 dollar budget somewhat.

Those would certainly do the job very well. Great buys too. I'm sure I paid too much for my phresh filter.

I'm completely legal, so I can have it shipped to my house. I really appreciate the input, fellas.

So, are Phresh Filters considered top of the line, or good quality?

http://botanical.com/hydro/air/phreshfilter.html?gclid=CKG5gKD52bECFWoZQgodykoA6A - I found this on the Phresh filter, but what's a prefilter?

The pre filter is just the sock like thing that keeps dust out of your carbon. If you don't keep your pre filter clean, dust can build up in your carbon making it less effective.

All carbon filters come with one.

Thanks, I hadn't heard of 'em until I saw you could order one on that site. It's probably just a replacement.

What's the difference, if there is any, between a carbon filter and a charcoal filter?

They are the same thing. I can also say I have been more than happy with the efficiency of my Phresh filter. Well worth the extra bucks.

I am leaning towards a Hydrofarm 8" inline fan with a Phresh filter that covers 720+CFM. I may drop down on the filter, because I don't need quite so much CFM, maybe 600 would do nicely.

This was the filter I found... When it's ready to be replaced, what do I need to replace... the whole filter?

there are several options, depending on what is needed. you can replace the sock which is pretty much a hepa filter and removes dust pollen mold etc. there are some diy sites that say you can replace the carbon inside but i have never tried. i am running a canam now and have been for 4 mos now and have 0 smell issues. and the life depends on the air it is filtering and how much it has to remove from the air. also the more cfm your run the shorter the life.

I figure a couple hundred bucks a year for a new filter isn't to bad.

I feel you. If you get 700 cfm, and only need 500 cfm, you can run the fan at a lower speed and lengthen the life of the filter, right?