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Old 05-03-2016, 06:49 AM   #1
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Adding inverter

Folks,

I wish to purchase an inverter for my 2011 MH. I will use it to power two 10 inch fans for approx. 8 hrs. Any idea what size unit I should purchase? Lots of them out there but rather difficult to determine output requirements.

Thanks!
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Old 05-03-2016, 07:09 AM   #2
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I would say get 12 volt fans, but most of them rattle and are loud.

You could probably use a cigar lighter, plug-in inverter. 150 to 250 watts would probably do it.

We use 6" fans from Wal-Mart that draw less then 40 watts.
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Old 05-03-2016, 07:58 AM   #3
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Do you mind giving us an idea of the fan model you are looking at and where you plan on using/installing it? I'm trying to imagine the set up.

The best I can find is that on average a small table fan uses 10-25 watts so even the smallest inverter you can find will work. Is there an option to just power these from your current inverter since this are such small units?

However, if a separate inverter is best I would use some caution with going too cheap. I've seen some rather inexpensive devices get toasted by modified sine wave inverters.
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Old 05-03-2016, 10:11 AM   #4
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Quote:
Originally Posted by twinboat View Post
I would say get 12 volt fans, but most of them rattle and are loud.

You could probably use a cigar lighter, plug-in inverter. 150 to 250 watts would probably do it.

We use 6" fans from Wal-Mart that draw less then 40 watts.
I guess I should of stated that I wish to use my house batteries to power inverter. Cig lighter plug-in inverters work but do not wish to deplete chassis battery while parked overnite.


ck
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Old 05-03-2016, 12:42 PM   #5
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Quote:
Originally Posted by kayserc View Post
I guess I should of stated that I wish to use my house batteries to power inverter. Cig lighter plug-in inverters work but do not wish to deplete chassis battery while parked overnite.


ck
My class C, MH powers 3 of the Cig. lighter type from the house battery.

Only the ones on the dash run off the chassis batteries.

If your looking for light duty power, a Xantrex PROWatt PS600 will do the job. Set it up close, but not in the same compartment, as the batteries. Run an extension cord to where you need it.

That's the simple way. It can also be set up with a Xantrex transfer switch, placed in line to the circuit that runs to the outlet your looking to power.
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Old 05-03-2016, 03:27 PM   #6
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Fans don't use much power (watts), so a small (maybe 200W) plug in inverter should do what you want. A little bit larger model might let you power something with a bit greater power need, though.

The time it will run depends on your batteries, not the inverter chosen.
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Old 05-03-2016, 03:37 PM   #7
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You might consider using these 12 volt fans

Very high quality, and much more efficient than needing to use an inverter to power them.

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Old 05-03-2016, 07:45 PM   #8
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We use this type of fan to keep our dogs cool.
Ryobi One 18 Volt Hybrid Portable Fan Indoor Outdoor Use Electric Power Cord New | eBay

It uses rechargeable batteries but also has a connection for a 120 volt power supply. Very versatile and they last a long time on a charge if you use the larger battery.

The other option would be to just get a standard 12 volt fan and avoid using an inverter as you loose efficiency every time you convert power one way or the other.
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