Is it better to Mount where the Fan pulls out the Heat from the Cabinet or better to blow Air into Cabinet?
64747
To be effective either pushing/pulling air past components in a cabinet, there has to be a corresponding opening in the cabinet for air to move. The best method is to mount the fan near the top rear of cabinet, pulling air out, with some sort of opening at the bottom front to allow cooler air to enter and replace the hot air being pulled out. If the cabinet doors don't seal tightly, this may be enough to ensure sufficient air flow.
64748
Needs to push the heat out of the cabinet. Before I installed this my Tivo was overheating and locking up frequently. Since I installed this I have not had any issues.
64749
I would agree with Auspician. In most cases a single fan is best used to suck hot air out of the cabinet, especially if you can mount the fan near the top of the cabinet and there is a source of fresh air somewhere near the bottom. In my case the cracks around the cabinet door provide enough air flow in.
64750
I thought it was better to have it pull the hot air out of the cabinet. But the way this fan is designed, the fancy brushed aluminum face of the fan is made to mount on the inside of the cabinet. When it's mounted inside the cabinet, it actually pulls cooler air into the cabinet. I have it setup this way in my server cabinet running a FiOS router, Ethernet switch, Mac Mini and 5 Bay Synology NAS server and it's keeping the temperature well within spec. Plus the fan wiring is on the back side so it'd have to be on the outside of your cabinet anyway.
64751
It works far better blowing the hot air out of the cabinet. Unless you can tie it directly to an AC vent, blowing air in simply won't be cold enough to make a meaningful difference.
64752
Blow air in if the case is ventilated (near the top) properly. Positive pressure ventilation is more efficient than air ejection. Ask any firefighter.
64753
Hot air out....I put this fan in a cabinet that has a SFF HP PC in it, that would get super hot and the PC's fans would constantly blow on high speed and make lots of noise....but once installing the fan the have not kicked into overdrive once and the cabinet is now cool enough that I put some backup hard drives and a couple iPods in there to charge. This little fan rocks.
64754
It's better to mount where it will pull the heat OUT, thereby bringing in cooler air unimpeded by other airflow inside the cabinet. If you blow air into the cabinet, it may not be able to exit as quickly and you would get air blowing back around the inside of the cabinet and impeding airflow into the cabinet. Think of it his way, if you blow into a paper cup with a fairly small hole in it, you can only "blow" so much air in and the rest comes back out at you. to avoid this potential problem, you will get the maximum airflow through the cabinet by pulling in air that is exhausted out by the fan. It's better to mount where it will pull the heat OUT, thereby bringing in cooler air unimpeded by other airflow inside the cabinet. If you blow air into the cabinet, it may not be able to exit as quickly and you would get air blowing back around the inside of the cabinet and impeding airflow into the cabinet. Think of it his way, if you blow into a paper cup with a fairly small hole in it, you can only "blow" so much air in and the rest comes back out at you. to avoid this potential problem, you will get the maximum airflow through the cabinet by pulling in air that is exhausted... » Read More It's better to mount where it will pull the heat OUT, thereby bringing in cooler air unimpeded by other airflow inside the cabinet. If you blow air into the cabinet, it may not be able to exit as quickly and you would get air blowing back around the inside of the cabinet and impeding airflow into the cabinet. Think of it his way, if you blow into a paper cup with a fairly small hole in it, you can only "blow" so much air in and the rest comes back out at you. to avoid this potential problem, you will get the maximum airflow through the cabinet by pulling in air that is exhausted out by the fan. « Show Less
503699
This fan does a much better job circulating air in the garage than the ceiling fan. Additionally, you can direct the air where you need it.
3282
If you have the room in your case, go for the larger one. The larger cooler will be more effective at dispersing heat at lower fan RPMs.
1826865
Depending on the air flow through the case. For example if the fans on the front are blowing into the case and you are mounting it on the back you want the fan to be blowing out. This is the push pull method.
1120143
I cut a hole in the back panel of the cabinet. I understand this is designed to blow air either from the outside into the cabinet or the other way around to cool the electronic components. I hope this helps.
1940220
There is an arrow on the fan that show you the direction the air will flow. If mounted on the rear of the case, You always want the fan to blow air out of your case.
1940225
Hello there..It is always preferable to put rear fans blowing out. But be sure you are creating a single air flow direction. You may not need intake fans and create enough negative air pressure within the case that air will enter through any other openings, but it's also preferable to put filtered intake fans with more capacity than the outlet fans so you always keep the dust where it should be and a fresh computer case.
1423191
Neither. The air does not flow in or out of the PCI case slot. The fan throws the air onto the PCI card next to it. In other words the air flows from the side shown in the picture to the opposite side keeping it all within the case.
1354194
Hopefully, you have air slots or vents in the hotter components. If you have air vented slots on the sides and bottom, mount the fan below, if you have vented slots on the top, mount the fan unit above to draw the heat away. If you have room in the rack to space the components from each other, that is best. It is a little noisy, but works well. If you can, put the fan closest to your most critical component that is effected by heat
776757
You could do that , if you remove the fan blades and reverse them (not recommended). I think what this means is you can place the fan in a window either way . . . blowing in or blowing out. The fan case profile is the same either way.
1682423
Either should be fine. You can always bend them off. They only give a bit more stability to the fan itself. It gets power via cable that is included. I'm running two of these in my server. Needed. A longer card they wasn't a blower type fan. I have one above and below my RAID card to keep it cool.
1350255
This device generates heat so it needs to be mounted in a ventilated metal box if it's going to be visible. I have mounted these inside cupboards mounted to the side wall and on top of cupboards. I always shim the device so that air flow is all around it
662826
Not if you have an outlet. If there's no outlet then run an extension cord or have an electrician put in an outlet close to the location you wish to mount the fan.
558049
My A/V cabinet is fully enclosed with no ventilation so I have one fan pulling in air and one fan pushing air out. It depends on your cabinet / preference.
315609
I think either setup would work. The Vornado circulates the cool air all around the room so position it so that wherever YOU are you are getting the most benefit of the cool. For example, if you are trying to cool off in your favorite chair, couch or bed, place it so you can feel the nice cool air as much (or as little) as you want. The size of the fan depends on the size of the room. In a small room, a smaller model is great. This one will do for a living room and good-sized bedroom. Hope this helps. I've gone through a lot of fans (with and without A/C) and these are the best.
190492
Hello Richard, I had the same dilemma and I decided that the fan would be much more effective when used as an exhaust fan. I have a very hot running tube amp and it keeps it running warm. I did angle the cabinet to the back wall so that the air would be reflected away at about a 15 degree angle. Hope this helps. Jnm
190495
I have two of the double fans (total of four fans) mounted at the top of a closed closet (3ft wide, 7 ft tall) which houses our computer servers and security system hardware. I reversed the mounting on the fans so they are exhaust, blowing the air out of the closet. There is about a 1 to 1 1/2 inch gap at the bottom of the doors where air can be drawn in. The idea is hot air rises and is exhausted while cooler air is pulled in at the bottom. This seems to be working quite well over the past month or so since the install.