Anyone using Can Max Fans? Are they any good?

I looking at getting the 10in or 14in max fan. I would like to cool two rooms off one fan. 4000k of light. I have 2 6in vortex fans now, but they are 3 years old and are now very very loud. Any input would be great.
 
Sorry to hijack, but...If I use an 8" can fan, would that be enough to vent a 600w and a 1000w? I think it probably would be. I run active air 6" on each of them and they are always cool to the touch. Also, if I connect them both with a Y splitter, do I need a backdraft damper on both parts of the Y venting to prevent backflow (for differing lengths of venting)?
 
The 14 inch Maxfan is the best. 2.5 amps, super quiet and powerful. One bad thing - I haven't been able to find a controller that allows you to properly adjust fan speed. I've purchased the CAP fan speed controller as well as the other popular fan speed controllers...and no luck.
 
I have the 10" and they are great. just as loud as any other fan that moves the same amount of air. You can add a foot or two of ducting if you want to quiet them down a bit.

I am pretty sure you need a VARIAC style controller to adjust the fan speed. They are 60-100 $ I think but they will do the job correctly. I was warned by my growshop owner that when you use a rheostat style speed controller it can burn up the motor over time.
 
I have several and will never use another fan again. well, unless something else comes out that is better... but nothing out yet. the 14" is quieter than the 10". The 14 runs at a lower rpm allowing it to be quieter. also, you can get the correct speed controls for the bigger fans at frys for a reasonable price compared to the max fans model.
 
The 14 inch Maxfan is the best. 2.5 amps, super quiet and powerful. One bad thing - I haven't been able to find a controller that allows you to properly adjust fan speed. I've purchased the CAP fan speed controller as well as the other popular fan speed controllers...and no luck.

http://www.4hydroponics.com/growroom/items.asp?ItemNo=canTrol

this is what you need bro, i just picked this up for a friend, it is the only way to control the speed of a 12/14 inch max fan, unfortunately no temp control on it at all, only dial in how much power you want to spin the fan, but you can connect it to a temperature activated thermostat.
 
I have several and will never use another fan again. well, unless something else comes out that is better... but nothing out yet. the 14" is quieter than the 10". The 14 runs at a lower rpm allowing it to be quieter. also, you can get the correct speed controls for the bigger fans at frys for a reasonable price compared to the max fans model.

please post a link if you have 1 cause those freaking can-trolers are almost as much as the dang fan
 
I looking at getting the 10in or 14in max fan. I would like to cool two rooms off one fan. 4000k of light. I have 2 6in vortex fans now, but they are 3 years old and are now very very loud. Any input would be great.
if you can handle the 12 being a little noisier i'd go with that one, it'll save you money on cost of fan and cost of ducting/reducers and takes up less space.
 

nangonug

Premium Member
Supporter
if you can handle the 12 being a little noisier i'd go with that one, it'll save you money on cost of fan and cost of ducting/reducers and takes up less space.
You can't go wrong with a max fan. The fans you are looking at are two different animal's though. If your looking for efficency the 10" is one of the best in it's class. It uses 1.9 amps to push 1000 cfm The 12" users over 4 to push 1700 cfm, It will push that throuh the right can filter and 25 feet of ducting though. I should mention that by push I mean output cfm . You should always try and pull your air through rather then push but you get the idea! The 14" moves the same amount of air as the 12 and does so with only 2.3 amps or so. The cost is this number will drop off faster then the 12 inch with any kind of load. Think of the 14 as a diesel engine and the 12 as a diesel with a turbo. The 12 is a real work hourse but does so at the cost of twice the amprage draw as the 14 inch max. I am still unclear how you plane to use the fan. You say you want to cool 2 rooms with it. That could mean you want to pull through your lights to cool or it could mean you want to exhaust air to cool. Ideally you would utilize both ways. A constent flow through your hoods and a high mounted exhaust hooked to a climate controller. I have used 10 and 12 " max fans. I wish the 14's were avaliable when I got the 12 inch cause for my situation it would have been a bit more energy efficent. Also you can run the 8 and 10' on a regular fan reostate. The problem is when you do this the motors are cooled with the air flow. If you reduce the air flow to much then the motors burn out. The 12 " uses a different motor. It actually sounds about like a jet starting up. lol It is loud. Every thing comes at a cost. Figure out how you plan to use the fan and the most efficent use for your intended purpose and go from there. You can not go wrong with any of the max fan's line. I would not be so concerned about saving a few buck over duct sizing between 12 and 14 inch, It is neglagable when you consider you might be running the fan for a decade or 2. remember the 12 is for long duct runs to maintain air flow. The 14 is for quiet energy efficency. The 12 uses 2 times the power as the 14 inch. Depending on your circut load, that could be the difference between using 1 breaker or adding a second circut. Also check ebay for used items. I have seen the 12's go for as low as 200 bucks. Peace
oh yea I have one 10 inch max that has been running in an exhaust configuration for around 7 years now. It runs constently during the summer and intermettently in winter. Still running strong! I also run a 10 " scrubbing through a can filter It runs 24/7 and has been for over 3 years. Hope this helps
 
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