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Best Match Items Ending First Newly-Listed Items First Price + Shipping: Lowest First Price + Shipping: Highest First

450 Watt 12CM Fan POWER SUPPLY Intel AMD Desktop PC $20.75 Time Remaining: 10d 1h 32m Buy It Now for only: $20.75

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450 Watt 12CM Fan POWER SUPPLY Intel AMD Desktop PC I5 I7 FX X6 X2 X3 X4 $19.75 Time Remaining: 22h 47m

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400W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $5.89 Time Remaining: 1d 3m

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500W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $9.99 Time Remaining: 1d 21h 12m

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500W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $9.99 Time Remaining: 2d 1h 3m

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450 Watt ATX Computer Power Supply Desktop PC 120mm Fan $20.75 Time Remaining: 10d 1h 32m Buy It Now for only: $20.75

Black 450 Watt ATX Power Supply P4 AMD SATA Fan 20 24 $20.75 Time Remaining: 10d 1h 33m Buy It Now for only: $20.75

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Cool Power Gamer 980 Watt PC ATX SATA PCIe Power Supply 120mm Blue LED Fan $46.95 Time Remaining: 2d 23h 28m

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New 400 Watt ATX Switching Power Supply ATX AMD P4 FAN $18.99 Time Remaining: 28d 41m Buy It Now for only: $18.99

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A Power AP550U 550W Watt ATX Power Supply 140mm Fan SATA PCIe $17.49 Time Remaining: 3d 29m

1080 Watt ATX Power Supply 140mm LED Fan PCI Express SATA 20+4 Pin by Cool Power $72.99 Time Remaining: 23d 22h 30m Buy It Now for only: $72.99

500W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $24.59 Time Remaining: 25d 1h 23m Buy It Now for only: $24.59

A Power APVA600 600W Watt ATX Computer Power Supply Dual Fan SATA PCIe $18.95 Time Remaining: 3d 30m

500W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $11.59 Time Remaining: 4d 2h 53m Buy It Now for only: $11.59

New 400 Watt ATX Switching Power Supply ATX AMD P4 FAN $5.99 Time Remaining: 3d 17h 14m

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Dell EMC2 Clarion 5931 Watt Power Supply w Fans TJ779 API1FSO6 $59.00 Time Remaining: 28d 20h 51m Buy It Now for only: $59.00

500W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $24.99 Time Remaining: 3d 18h 14m

Papst Computer Fan TYP 612 12 Volts 2 5 Watts $9.75 Time Remaining: 9d 20h 22m Buy It Now for only: $9.75

New 400 Watt ATX Switching Power Supply ATX AMD P4 FAN $5.99 Time Remaining: 3d 19h 36m

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450Watt W 120mm Fan Silent 24 20 Pin SATA ATX Power Supply NEW $22.95 Time Remaining: 17d 5h 21m Buy It Now for only: $22.95

550W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin PCI Express Cable NEW $22.41 Time Remaining: 3d 21h 37m

680 WATT POWER SUPPLY Intel AMD PC Desktop Computer NEW 2 FANS $24.95 Time Remaining: 19h 37m Buy It Now for only: $24.95

400 Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin New $5.39 Time Remaining: 4d 1h 49m

450 Watt ATX Computer Power Supply Desktop PC 120mm Fan $14.76 Time Remaining: 10d 2h 28m Buy It Now for only: $14.76

New 400 Watt ATX Switching Power Supply ATX AMD P4 FAN $18.99 Time Remaining: 25d 1h 23m Buy It Now for only: $18.99

400 Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin New $5.39 Time Remaining: 4d 10h 9m

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400W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $5.99 Time Remaining: 4d 22h 7m

450 Watt Quiet 120mm Fan ATX Computer PC Power Supply $20.75 Time Remaining: 27d 54m Buy It Now for only: $20.75

Ultra LSP750 750 Watt Power Supply ATX SATA Ready SLI Ready 135mm Fan $79.95 Time Remaining: 12d 15h 1m Buy It Now for only: $79.95

COOLMAX 500 Watt ATX Power Supply with 120mm Silent Fan $12.95 Time Remaining: 5d 57m

KENTEK 650 680 Watt Dual Fan ATX 680W 650W Gold SATA PCIE Power Supply $24.95 Time Remaining: 19h 37m Buy It Now for only: $24.95

400W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin $5.99 Time Remaining: 5d 2h 37m

KENTEK 650 Watt 120mm Fan ATX 600W 650W Black SATA PCIE Power Supply Quiet $29.95 Time Remaining: 27d 22h 30m Buy It Now for only: $29.95

450W Watt Power Supply P4 AMD SATA 120mm Fan 20 24 Pin $20.99 Time Remaining: 11d 2h 36m Buy It Now for only: $20.99

600W Watt ATX Power Supply P4 AMD SATA Fan 20 24 Pin PCI Express Cable NEW $24.90 Time Remaining: 5d 14h 42m

KENTEK 650 Watt 120mm Fan ATX 600W 650W Black SATA PCIE Power Supply Quiet $29.99 Time Remaining: 20d 23h 36m Buy It Now for only: $29.99

WT550i 550 Watt Dual Fan High Quality Power supply $29.99 Time Remaining: 5d 19h 18m Buy It Now for only: $39.99

450 Watt 12CM Fan POWER SUPPLY Intel AMD Desktop PC $7.99 Time Remaining: 7d 2h 49m Buy It Now for only: $7.99

BSTAR 650 Watt Dual Fan ATX 650W Gold SATA Power Supply $11.70 Time Remaining: 4d 2h 54m Buy It Now for only: $11.70

Quiet 750 Watt Intel AMD PC ATX Power Supply SATA PCI E 120mm Fan $38.99 Time Remaining: 6d 2h 35m

KENTEK 650 Watt 120mm Fan ATX 600W 650W Black SATA PCIE Power Supply Quiet $29.99 Time Remaining: 21d 24m Buy It Now for only: $29.99

Quiet 850 Watt Intel AMD PC ATX Power Supply SLI PCI E Large Single fan Cooling $44.99 Time Remaining: 6d 2h 53m

New Dual Fan 600 Watt ATX Switching Power Supply PS AMD $24.89 Time Remaining: 1d 22h 15m Buy It Now for only: $24.89

LOT 10 450 Watt 12CM Fan POWER SUPPLY Intel AMD PC $179.99 Time Remaining: 21d 2h 23m Buy It Now for only: $179.99

450 Watt Quiet 120mm Fan ATX Computer PC Power Supply Intel 20 24 PIN $19.75 Time Remaining: 6d 3h

New SHARK 550 Watt Gaming Silent 120MM Fan ATX 12V Desktop PC Power Supply SATA $16.89 Time Remaining: 5d 23h 14m Buy It Now for only: $16.89

Black 450 Watt ATX Power Supply P4 AMD SATA Fan 20 24 120mm Fan $19.75 Time Remaining: 6d 4h 35m

650 Watt 120mm Fan Power Supply for HP 5187 1098 Bestec ATX 250 12Z PCIe SATA $29.95 Time Remaining: 27d 22h 29m Buy It Now for only: $29.95

500 Watt ATX Dual 80mm Fan Active PFC Power Supply 9 Molex 2 SATA PC ATX 12V PS $28.99 Time Remaining: 9d 20h 53m Buy It Now for only: $28.99

NEW 400 WATT POWER SUPPLY W 9 X CONNECT CABLES TITANIUM FINISH DUAL 80mm FANS $9.99 Time Remaining: 6d 15h 3m

Ultra LSP650 650 Watt Power Supply ATX SATA Ready SLI Ready 135mm Fan $69.95 Time Remaining: 12d 14h 56m Buy It Now for only: $69.95

Used Delta DPS 350PB 350 Watt Power Supply A7223 008 Twin Fan 540 5758 01 $0.99 Time Remaining: 6d 16h 33m

NEW Hercules 400W 120mm Fan Silent ATX Power Supply w 20 24pin SATA $19.95 Time Remaining: 15d 17h 19m Buy It Now for only: $19.95

Watt Fan

Why Choose an Attic Solar Fan over an Electric Powered One?

The attic is typically a quite problematic area in the home. Have you noticed how through the warmer months of the year the attic is hot enough to fry bacon in (without a pan)? During summertime, heat from the sun radiates to the shingles of the roof, from there to the attic, and from the attic to the entire home. Unfortunately this problem cannot be solved by simply waiting for the sun to go down, as the attic stays hot for much longer after. Having insulation slows the progress without eliminating heat entirely. A solar attic fan will ventilate the attic area without running up the energy bill or running the money out of your pocket.

Types of Ventilation: Passive v. Active

Passive Draft Air Convection

The type of ventilation an attic house fan provides plays a major role in the efficiency of the system as well as the energy usage in your home and what it costs. Gable vents, ridge vents, and dormer vents fall into the category of passive, or natural, ventilation. What this means is that as the hot air in the attic rises, it should pass through the vents to produce a natural draft through the attic. However, this method is not effective in lowering the attic temperature. Turbine vents are just as unsuccessful in properly ventilating the attic, as they are not capable of moving much air, experience mechanical issues regularly, and depend on wind to provide power.

Active Draft Air Convection

Attic solar fans are placed in the category of active attic ventilation. Air coming from outside is pushed through the attic and out of the vent. Through this method, attic air is exchanged more frequently every hour as opposed to the method of passive ventilation. These fans are capable of providing cool air to the entire attic space all through the day, as they bring on more of an air draft throughout the attic. In addition, the process of active draft air convection allows the solar attic fan to provide the attic with cool air during the entire day.

Choosing the right Solar Ventilation Fans

Solar ventilation fans can be placed in two categories of performances: 10 watt and 20 watt or higher fans. While the 10 watt solar attic fan is less expensive than the higher wattage fans, it is capable of moving only 850 CFM at the most. These fans are ideal for attic spaces that cover 1200 square feet at the most. If you have an attic that covers more square feet, you can choose to either purchase many low wattage solar attic fans or install a higher wattage fan for the attic.

The amount of air moved by lower wattage fans is fairly minute when compared to the maximum 1550 CFM of airflow the higher wattage attic solar fans can handle once fully exposed to the sun. These solar ventilation fans are more suitable for the average home, since the attic covers more than 1200 square feet. The DC motor on the solar attic house fan is powered by a small panel. The 20-25 watt panel is activated once it has been exposed to sunlight.

Environmental and Financial Benefits

The common attic house fan is generated using residential energy. Solar ventilation fans are powered entirely by the sun. This lessens the burden on your energy supply at home. The attic will continue to stay well ventilated, as these fans minimize the amount of spaces that require cooling. Having a well-ventilated attic allows you to better control the temperature in the home. The need to change the thermostat settings will be greatly reduced, as the attic will no longer be releasing warm or cold air into the rest of the house, allowing you to save energy in the home.

Energy savings in the home translate to savings on the energy bill. The money saved is the money that has been used to power a fan in your attic that is not really providing enough ventilation. The solar attic fan costs absolutely nothing to operate. The fans move a maximum 1550 CFM of attic air once fully exposed to the sun. While the exact amount of savings is dependent upon factors including climate, electricity rates, and attic size, the average attic solar fans pay for themselves after a period of 1-2 summers.

Solving the problem of proper attic ventilation does not have to be a difficult task. A solar attic fan is powered entirely by the sun. The energy provided by the sun does not add to the burden on your energy supply. By reducing the amount of energy used, you are also decreasing amount of emissions from your home. In addition, attic solar fans ventilate the attic without costing you a penny. You can rest easy knowing that the attic is not sending burning hot air into the home, and the energy bill is no longer burning a hole in your wallet.

About the Author

Conservation Mart strives to be a one stop shop for weatherization products, energy efficiency and water saving products. We serve customers such as home owners, businesses, contractors, weatherization agencies, housing authorities and government agencies. We pride ourselves in delivering conservation technologies to help reduce residential and commercial energy and water use and in educating stakeholders on the benefits of energy and water efficiency.

window fan watt usage per month?

Optimus F-5280

by law, there must be a label on it somewhere that gives either wattage, or current drain.
watts = volts x current

I have searched WWW for this info, but all roads lead back to the amazon page (sigh)

JJ Watt Fan Reaction~1