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Thread: DC attic fan motor

  1. #1
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    Default DC attic fan motor

    Does anyone here know where to buy the DC motor for the attic fan,so I can replace my ac motor attic fan .because I am making a solar panel but do not want to use inverter.thanks

  2. #2
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    Default solar attic fan

    You may want to consider a solar attic fan. Here is a link to one at SolarTown: http://www.solartown.com/store/produ...c-30-watt-fan/

  3. #3
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    Default

    What he probably wants is one of these: http://www.solartown.com/store/produ...e-30-watt-fan/

    I have 2 of them, one sucking and one blowing. Both run on 12v DC.

  4. #4
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    Default

    Quote Originally Posted by satguyjim View Post
    What he probably wants is one of these: http://www.solartown.com/store/produ...e-30-watt-fan/

    I have 2 of them, one sucking and one blowing. Both run on 12v DC.
    I could say something inappropriate to that
    Kind of like Bart Simpson
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  5. #5
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    Default $535.00 for an attic fan!!!!!!

    I am living San fernando valley,CA and My 180w attic fan run 8hr a day in hot summer = 1.4KWH X 180day/year =252kwh/year x 14cent/kw = $ 35.28/year x 15 years,16 day = $535.00.Man!! not a good idea to go for solar.

  6. #6
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    Default radiator cooling fan 12V

    Does any one know how many watt panel to run the 12v radiator cooling fan .

  7. #7
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    I have not done exact measurements on the radiator fan im using. But since im supplying it power from a 15 Vmp, 3.5 amp panel, its working same as when it is on the car. Roughly 50 watts I guess. Fan is from a 96 civic, about 12 inches in dia. If there is a cloud or the sun is low, it would just slow down a bit, but not stop.

  8. #8
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    Default

    Automotive radiator cooling fans pull 10 - 20 amps @ 12V. Way too much for household attic use. There are special purpose, low power fans for that.
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  9. #9
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    Default

    Does 100w panel work good for this fan:http://cgi.ebay.com/ebaymotors/14-UN...item2567ea30c5

  10. #10
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    Default

    Fan is 80w @ 12v, about 6.7amps
    panel is 100w @18v, about 5.6amps

    Not exact match but it will still run and pull a lot of air.
    That type of fan is a bit noisy though.

    Thats a lot of expensive power on your attic.
    You could use a smaller version of the fan since it would be running continuously the whole day.
    Try searching the salvage yard for cheap DC fans and motors.

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