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Old 09-23-2011, 08:41 AM   #15
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Hurly23,

Take a look at this one. It gives the better of both worlds, electric or battery. We just bought them last week or so and have not used them except here in the stick house. They did fine.

Portable Fan

I don't remember where we purchased it, but it was a floor items. Search on "portable fan model #1071" without the quotes.

Good luck.
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Old 09-24-2011, 01:06 AM   #16
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This is the fan I use in my trailer. It runs on eight D cells or a 12 volt wall transformer with a type M coaxial power plug.

O2 Cool 10" Fan

I picked up some small power supplies at local thrift stores with output voltages from 4.5 to 12, then went to Radio Shack and picked up some type M plugs and put them on the power supplies. I think I ended up with 4.5, 6.0, 9.0, and 12 volts supplies, and the fan has two speeds. There's so little difference between the 4.5 and 6 volt supplies that the 6 really isn't necessary.

If I want the fan to run at a very low speed I feed it 4.5 volts and put it on low and it is very quiet and moves air very gently. If I want a lot of air movement, I feed it 12 volts and put it on high.

I also picked up some cell phone car cords in various voltages and did the same, so I can run the fan with 120 volts or 12 volts. It makes a very versatile fan.

I've never used it with D cells. A set of 8 would cost more that half what I spent on all the power supplies.
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Old 09-24-2011, 09:45 AM   #17
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Thanx for all the great ideas everyone. I bought a 12 volt plug from Auto zn. I will be installing it this weekend. Then buying one of the fans u guys mentioned. Very greatful for everyones knowledge and opinions! Love this forum! Truly one of a kind!
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Old 09-24-2011, 09:46 AM   #18
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Oh yea. Semper Fi Wayne. Noticed ur a marine. Or were. I'm in the Air Force. Been serving for 11 years now! Hoo rah!
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Old 01-31-2012, 09:56 PM   #19
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Just make sure the wiring will support the amps needed to run your 12v fan
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Old 01-31-2012, 10:39 PM   #20
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Your original idea is a good one. Try a truck stop and look for a clamp on variable speed 12V one.
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Old 01-31-2012, 11:15 PM   #21
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I just installed GREAT fan under the overhead cabinet over my bed. It's really quiet and rotates to blow where I need it. I plan to use a small plug-in socket inverter when boondocking.

Fan --
http://www.amazon.com/Vornado-CR1-01...inet-Personal-
Fan/dp/B001NAP9NO/ref=sr_1_1?ie=UTF8&qid=1328071842&sr=8-1

Inverter -- Amazon.com: BESTEK 150W charger dc ac power inverter car dc 12v to 110v car adapter usb charger car samsung adapter pda car charger htc adapter car lg charger mp3 car adapter iphone charger car motolora adapter ipad car charger blackberry car adapter
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Old 02-01-2012, 07:25 PM   #22
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I adapted two Antec three speed 120MM case fans to use in our trailer, VERY low power draw even on high.
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Old 02-01-2012, 07:50 PM   #23
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Quote:
Originally Posted by Shadowcatche View Post
I adapted two Antec three speed 120MM case fans to use in our trailer, VERY low power draw even on high.
Is this the fan you used?
Antec.com - Product: 120mm SmartCool

Where you able to retain the thermo speed control?
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Old 02-01-2012, 07:57 PM   #24
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I carry a 12V Fantastic Vent Endless Breeze floor fan and a couple of the small portable ones, but I also installed a 30" low profile hallway fan on the ceiling. It's 120 volt but since we always have the inverter on it's no problem. That's probably more than you want to do though.
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Old 02-01-2012, 08:00 PM   #25
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Quote:
Originally Posted by okmunky View Post
Is this the fan you used?
Antec.com - Product: 120mm SmartCool

Where you able to retain the thermo speed control?
I bought one of them at Best Buy last year (about $15) and used it behind the refer. I think I'll buy another one to put beside the first one. I just experimented with the connections to get it running as the fan control module is on the computer motherboard which you don't have. Connecting different wires gives you different speeds.
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Old 02-02-2012, 06:36 AM   #26
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The fans I used are the three speed Antec.com - Product: TriCool 120
The Smart cool require the sensors in the computer to function.
I actually used them in place of a vent fan, much quieter and a 1/4 of the power and in a teardrop the right size.
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Old 02-02-2012, 11:35 AM   #27
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Years ago I bulit (Well slightly overbuilt) a 12 volt power supply for some equipemnt I had,, I wanted a small fan.. I visited an auto parts department and picked up some 12 volt automative fans, Not unlike the "Dash Fans" in a motor home.

The power supply, which was very heavy, made a good solid table top base for it.

Now, you could make a base out of most anytihng, Take a small square or round plastic container (Say an Ice cream box or such) fill with plaster and let set.. As an Example.. or a "Project box" or .. Well any container.

You can very likely tap 12vdc off the readling light circuit next to the bed.. Which reminds me I need to do some service because the slide out motor circuit (if its a slide out bed) is another good tap point.
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