How effective are the twin fans? If I live in a small room with a computer and throughout the summer it can get up to about 90degress, how cooler does it get when using the twin fans?
1659077
I also have a small room with a computer running at all times, and the temperature gets very warm, very fast without the fan. What I have found most effective, is to put one fan blowing fresh air in, and the other exhausting old air out. This creates an Air Exchange which in my case, makes a noticable differnce over simply having them both blowing in the same direction. It also keeps the room smelling less stale than when they are both on exhaust. The grills covering the fans have a slight angle to them, which you can see if you look closely at the slats. If your fan is mounted horizontally, turn both grills slightly to that the left one is pointing to the upper left corner, and position the right grill so that it is pointing to the upper right corner. Pay attention to the subtle slant of the slats to make sure air is blowing in or being sucked out from the top. This allows them to still be pointing upwards, while still pointing away from each other a little bit so that the contrasting air flows don't conflict. This is best for the "One In/One Out" Air Exchange method. You may find slightly better results if you keep the exhaust fan on a slightly higher speed than the intake fan when using the Air Exchange method. Also, if you keep your blinds closed to the level just above the fan to block out sunlight it will help keep the room cooler and make it easier for the fan to keep the room comfortable. If your room is small, try keeping the door closed, so the fan only needs to cool a smaller space, rather than drawing air in from the other parts of your home.
1659078
My experience with window fans is they don't help that much during the day when the outside air is hot but they are great at night when the temperature drops. You can run them on exhaust to push out the hot air from your room and then switch to regular mode to bring in the cooler night time air.
488280
The fan will circulate the air in your room. It pulls air from the back and pushes it out the front. The temperature of the air in your room will stay the same.
122345
I bought the Comfort Zone CZ309 - 9" twin fan and like it very much. About the twin fans, it produces quite a bit of air movement that you wouldn't get if you put a single fan unit in a casement window. Two fans are needed. The fan is adjustable so you can turn it down to a low speed or high. I turn on the high speed to flush out the hot air that builds up on a hot day and then turn it down to the low speed. It really clears out the hot air quickly and makes the room comfortable.
692093
The room is not any cooler in terms of degrees when you use a fan whereas an air conditioner does actually lower the temperature. The 'cooling' effect you feel with a fan is a result of the movement of air across your skin.
2034325
I've had this computer for a number of years. If Everything is turned off in the room and I listen carefully I can hear the fansright now I have each of the 6 fans on the #1 (one light) setting. as the summer progresses I may turn on a couple more.It if fairly quiet compared to other Towers I've had at home & work
214893
Fans do not provide any cooling. If anything, they create heat from operation. That said, it will help circulate stagnant area and make it more enjoyable. It is a powerful fan, for sure.
857988
Not bad at all. It uses a larger, slower fan to move the air (can kind of see the cut-outs for it on the right side of the unit in the picture). We use it in the garage to drive a noisy high-speed spindle, though, so noise hasn't been a concern for us.
179210
I installed two of these fans in my computer area off my hallway and they are fairly quiet, even on high. They do have a slight humming when on, but doesn't bother me at all. I love the air flow they generate in the 10' x 5' space I have them in!
90250
You are pretty accurate, I love these fans because they move LOTS of air and I have been running it 24/7 for four months now with no problems. The negatives, they are loud and as you said there is not a significant difference between speeds; there IS a difference, but not from a quiet whisper to full throttle.
1859285
This is a great fan....very quiet, and does a super job of cooling.. But, for a really large room, you may also like having an oscillating fan, as well. It depends on the size of your room. I definitely love this fan, tho. It is very quiet and has a lot of power.
1774889
Well, I have four fans cooling my system and when gaming I let them spin pretty fast. Don't really care about excessive sound because I'm wearing a headset most of the time. With stock fan/heat sink mine is very cool while idle, and have never seen it above 60C while playing some of the most demanding games. Yes the fan and heat sink could be better but for me it's fine.
1878739
I bought two at the same time and they're both still running fine. The fans run almost constantly but they are quiet and and the noise level is not an issue. As another reviewer stated, the temperature display changes all the time but I put digital thermometers inside the units and the actual temp does not vary by more than 2 degrees. For the money, they're pretty tough to beat.
1984503
This fan is designed to move a lot of air into an entire room. It's about 100 times more than you need. Use PC fans instead. They're designed to ventilate desk-top computer cabinets. Two or three will do the trick, use less electricity, and make less noise. Just type "pc fan" in the Amazon search bar.
1936921
I don't have an rpm for you. I can tell you that I did AferEffects heavy-rendering on my MacBookPro, and these fans keep my computer running nice and cool even during the summer. Now, keep in mind that I wouldn't recommend this as a portable solution. These fans were design to cool down stationary equipment, not for a student walking with his laptop all over the place :) Hope this helps!
1747455
I have the dual fans (4000 cfm) ... using to cool a 355 SBC they are quality units, work fine, however, they draw a lot of juice and are noise. I had to go to a 140 amp. alternator to carry the load. I'm going to put seperate switches so I can run 1 fan on cool days and 2 only when needed to drop the load and noise. engine mounted in a '74 260Z roadster conversion with tight engine bay so cooling, even with an alum. rad. and ceramic coated headers a task. Fans did the trick.
1881830
All depends what your running in it. Also the avg temp of the air in your space. I haven't installed any extra fans aside from the H100 I use to cool my cpu. So for a basic build you should be fine.
2050363
I connected mine to the molex connector and set the speed to medium (using the switch on the fan). The high speed was a little too loud for me. At medium, I can barely hear the fan.If you are concerned about heat, then download an application (like hw monitor), so you can keep tabs on the hardware temps. If you are concerned about noise, then set the fan to low/medium. With my fan set to medium, I don't have any issues with heat, but every case/hardware configuration is different.