DIY Fantastic Fan
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Dec-31-2014 10:24 AM
I thought this could be an easy and free mod but am not sure if it would work. It occurred to me that the fan operates on DC and I have an old house thermostat (non digital that also operates on DC). I could mount the thermostat on the wall beside the switch and wire it inline after the switch, so that when the temp inside reaches whatever temp I set the thermostat to (say 90) the fan will automatically kick in. If I want to run it manually I can just side the AC temp all the way over to the end and the switch will operate manually.
Any thoughts or potential flaws with this idea???
rvtechwithrvrob.com
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Jan-09-2015 09:17 AM
Be aware of the kind of thermostat you're using. Many household thermostats use a mercury or similar tilt switch that is mounted to a bimetallic strip (like in a dial thermometer). If such a thermostat is not level, the temperature setting will be inaccurate; also, jostling may cause it to bounce on and off. (Many of them are calibrated/adjusted by tilting the internal mechanism, in fact.) Neither of these is much of a problem for a normal house, but in an RV conditions are different.
As for why do this rather than just buying a Fantastic Fan: one reason is that there is a very real difference in cash outlay between fiddling with a thermostat and a fan that you already have and purchasing a Fantastic Fan....
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Jan-09-2015 08:51 AM
smkettner wrote:
Do you have an actual Fantastic Fan or the typical basic worthless undersized pathetic noisemaker?
Start with getting an actual Fantastic Fan or other equivalent brand.
Self install is not much more than the thermostat contraption.
Here is a nice fan to upgrade any old roof vent:
http://www.adventurerv.net/hengs-vortex-vent-kit-p-27485.html?gclid=CJrdhYm8h8MCFQkuaQodXR0AGA&utm_campaign=partsfeed_ppc&utm_medium=cpc&utm_source=Froogle
Mel
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Jan-07-2015 07:45 PM
Start with getting an actual Fantastic Fan or other equivalent brand.
Self install is not much more than the thermostat contraption.
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Jan-07-2015 07:37 PM
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Jan-04-2015 06:24 PM
A relay makes sense... high school electronics is coming back to me now. I wonder if a Automotive Relay would work, it should be 12DCV? The real question is how much current the fan will draw.
rvtechwithrvrob.com
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Jan-04-2015 05:42 PM
old guy wrote:Plus they automatically open and close.
why go through all that trouble when fantastic fans already come that way.
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Bob
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Jan-04-2015 05:34 PM
And I don't have a loud fan in the bathroom
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Jan-04-2015 04:11 PM
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Dec-31-2014 12:42 PM
old guy wrote:
why go through all that trouble when fantastic fans already come that way.
I agree, just use the built in thermostat. You will just have to adjust it manually until you reach the desired setting.
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Dec-31-2014 12:06 PM
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Dec-31-2014 11:24 AM
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Dec-31-2014 10:57 AM
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Dec-31-2014 10:39 AM
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Dec-31-2014 10:38 AM
Although it just occurred to me that the home thermostats operate on 24v using a transformer setup. But it's worth a try.