Portable window fan

[Rainier70]

I finally got around to getting another computer fan for in my window. I have an Antec Big Boy 200mm fan in my vent and love it, but sometimes I want more air either in or out my windows too.


So I got a second fan and put it on a 12v extension cord. I have 12 volt plug-ins at both ends of my trailer, so I can hang it just about anywhere that I want more air movement. The fan is about 8 inches in dia.

Here is the Amazon listing for the fan.
http://www.amazon.com/gp/product/B000V6 ... UTF8&psc=1

It is three speed, uses little power, and is very very quiet. It moves a good amount of air, 134cfm on high at 0.3amps and 30dBA.

I put it on a chain so that it would be easy to hang, and also easy to just turn around, depending on whether I want to move air in or out the window. It is also quick to remove and put away for traveling.

I added a small inline single pole switch that I picked up at Radio Shack for an on/off.

Hanging: (I don't know why resizing my picture should make the window screen look like Medieval chain-mail but it does. Weird!)



Cord, Switch, and speed control

[NCBooger]

Now that's a nifty idea. I like it.

[Aaron Coffee]

Have you given any thought to putting screen on the back of the fan to keep fingers from inadvertently being put in there? I had one of the dash fans and my mother went to adjust it and accidentally stuck her finger in the back and skinned up her knuckles and bled like a stuck hog.

[working on it]

I installed two 120mm case fans (63 cfm each) on my side vents (screened, with butterfly closure), but never intended them for primary air circulation on a warm day. Intended mainly for eliminating humidity (and CO) in my air-tight 4x8. I have a powerful ac powered fan for that, and an A/C unit as well. The case fans will suffice once the sun goes down, and the temps fall. I mounted them on swing brackets (continuous hinge), so I could swing them away from the butterflys to open or close them, or, if swung away, they direct a small breeze towards the occupants. I installed metal finger guards on the usual face-out side (visitors or tourists might insert a finger, otherwise), but none needed if used for straight forward air-flow ( I won't insert a finger).

swingaway case fan with guard.jpg (35.35 KiB) Viewed 300 times

Photo132.jpg (98.25 KiB) Viewed 300 times

[Rainier70]

Nice looking fan and set-up. I like the finger guard. A guard is something that I should probably add to mine too.