well-ventilated people

Solar Powered Roof-Mounted Attic Vent

Qualifies for 2009 Energy Tax Credit A smart alternative to conventional roof louvers, the Solar Powered Roof-Mounted Attic Vent operates during the day and collects power from direct sunlight to convert into electricity. In turn, this energy operates a high efficiency motor inside the power vent, so there's no added cost for electricity. That saves energy, which is better for the environment.

And unlike most electric power vents regulated by a thermostat, the Solar Powered Roof-Mounted Attic Vent does not wait for the attic to get overheated before running. It operates whenever there is direct sunlight.

Solar Power Eco Friendly ProductThe solar vent operates without fuel, waste or pollution. And as a totally solar-powered solution, it’s also environmentally friendly. There's no need for electrical hook-up or electricity, simplifying the installation process.

The Solar Powered Roof-Mounted Attic Vent features durable, high-quality, two-piece construction utilizing a solar panel to collect and deliver power directly from the sun to a high efficiency 24-volt DC motor inside the power vent.

Benefits of a Solar Powered Attic Vent:

Design Considerations
The solar panel can be mounted next to the dome or, because the panel comes with a 10-foot cord, you can mount the solar panel at another location on the roof to optimize solar collection while placing the dome in an inconspicuous location on the roof.

 

Solar Powered Fan Testimonial—Updated with 2014 Data

In September 2011, the Whisenhunt family in Longmont, CO wrote Air Vent a letter expressing how pleased they were with the performance of their Air Vent roof-mount solar powered fan they installed near the end of the summer 2010. “We have been comparing our electric usage before and after installation,” they wrote. “The results are that the fan has saved enough in electric bills to nearly pay for the cost of the fan.” Prior to installing the fan they used 7 roof louvers for attic exhaust ventilation. The Whisenhunts installed a second roof-mount solar powered fan April 2012. The charts below show the kilowatt usage and the average temperatures before and after the installation of the fans. Pay particular attention to June-August 2010 vs. 2011, 2012, 2013 into 2014. And see the dollar savings. Finally, see the “Notes” section in which the Whisenhunt’s documented the attic temperatures vs. outdoor temperatures. Their readings fall right in line with Air Vent’s recommendations that a balanced attic ventilation system should keep the attic no more than 15-20°F higher than the outdoor temperature.

Note: The Whisenhunt family saved $183.69 in total June-August 2011 vs. the previous year for the same time period. In each of the next two summers they continued to save money compared to 2010 despite higher overall outside temperatures and hikes in electricity costs. The 2012 savings = $157.59. The 2013 savings = $201.11.

2010
Kilowatt Hours
2011
Kilowatt Hours
2012
Kilowatt Hours
2013
Kilowatt Hours
2014
Kilowatt Hours
Notes
Jan. 2668 1751 2013 2487 2211
Feb. 1637 1718 1548 1928 1213
Mar. 1608 1586 1482 1152 2423
Apr. 1659 1586 1214 1649 1588 Installed 2nd fan
on roof April 2012.
May 1603 931 849 1232  
June 1833 1061 1024 933  
July 2626 1585 1795 1419  
Aug. 2601 1662 1518 1194   Installed 1st fan
on roof August 2010.
Sept. 1632 1449 1086 1524
Oct. 1131 1062 960 914
Nov. 1269 1261 1013 922
Dec. 1623 1535 1163 1096

 

2010
Avg. Temperature
2011
Avg. Temperature
2012
Avg. Temperature
2013
Avg. Temperature
2014
Avg. Temperature
Notes
Jan. 31.00 37.00 36.00 28.00 36.00
Feb. 34.00 21.00 34.00 37.00 28.00
Mar. 35.00 39.00 54.00 34.00 40.00
Apr. 45.00 39.00 54.00 42.00 44.00 Installed 2nd fan
on roof April 2012
May 48.00 49.00 56.00 47.00 52.00
June 62.00 60.00 66.00 66.00  
July 71.00 72.00 78.00 74.00  
Aug. 75.00 77.00 78.00 77.00   Installed 1st fan
on roof August 2010.
Sept. 71.00 73.00 73.00 74.00 The attic temperature was no more than 6 degrees warmer than the outdoor temperature after 4 different readings September & October 2012.
Oct. 65.00 61.00 58.00 58.00
Nov. 52.00 45.00 52.00 45.00
Dec. 38.00 36.00 43.00 33.00

 

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