Posts Tagged ‘Solar Fan’

The Cost-Effectiveness of Solar Ceiling Fans

Solar Attic Fan 20-watt with 25-year warranty

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  The Cost-Effectiveness of Solar Ceiling Fans  

During summer, the temperatures in your home could reach a very uncomfortable and stifling level. That is why many homeowners incur exorbitant electric costs during summers because their fans or air conditioners work overtime to provide cool air.

By installing solar ceiling fans, you can cool yourself the whole day long without worrying about your electric cost. The fans will help circulate cooler air and lower temperatures in your home. Plus, solar fans are available in interesting designs and styles that will complement any modern, contemporary home. Take a look at some solar ceiling fans that may interest you.

The Cost-Effectiveness of Solar Ceiling Fans

Solar Attic Fan:

This environmentally sensible solution to heat can also help you save money. This sleek, elegant and efficient vent is powered solely by solar energy and is both quiet and compact. It is easy to install because it does not require electrical wiring. You can install it in any area where you want to improve circulation such as lofts, workshops, garages, barns, lofts and even storage sheds. The fan comes with fully removable and adjustable custom solar panel, self-tapping screws, wire lead and adjustable bracket for solar panel. The dimensions are 19.125 inches by 16.125 inches for solar panels and venting capacity of up to 1,800 square feet.

cSol Solar-Powered Ceiling Fan Kit:

This fan can be installed either indoor or outdoor. It features a wall switch with two speed reversible options, multicrystalline technology and strip module. It measures 42 inches and 36 inches, blades available in finish options of black, silver, almond, oak and white and housing in choices of nickel, chrome, brass or white.

The Cost-Effectiveness of Solar Ceiling Fans

Macrovoltaic Solar Fan:

This fan boasts infinite efficiency to provide consumers with great savings and positive effect to the environment. It features variable speed with forward and reverse, invertible blades, 180-watt solar panel, custom blade anodizing, corrosion resistant coating and custom extensions. It comes with backup battery and a 12-year service life warranty.

Solar Industrial Exhaust Fan from Nanjing Jie Yang Da Electric Appliances Co.:

This fan will keep your house cool during the hottest of days and reduce power consumption. It draws out the water vapor away from home to allow the flow of fresh air. It comes with a 12-volt brushless DC motor, metal temperature controller and 20-watt to 25-watt solar panels. The fan has a maximum ventilation capacity of as low as 800CFm and as high as 1500CFM which is ideal for a 100 to 200 square feet area.

The Cost-Effectiveness of Solar Ceiling Fans

Backwoods Solar Electric Systems' Solar Direct Attic Fan:

This noiseless solar fan uses PV module of 11-watt, 15-watt or 20-watt to move up from 850 CFM to 1,250 CFM from your attic. It features molded, ABS plastic base that is paintable, 5 12-inch aluminum blades, stainless steel screen, and thermal switch. The flat base of the fan measures 24 and ? inches by 24 and ? inches with overall height of 7 inches. The available models and their corresponding prices are FAN 850 for $485.00, FAN 1050 for $585 and FAN 1250 for $685.

Solar Dynamics LLC's SDF-20SF Fan:

This self-flashed base fan is designed to be installed on sloping, low profile roof. Waterproofing the roof decking and materials is highly recommended.

The best way to find cheap and quality solar ceiling fans is on the Internet. Many retailers (backwoodsolar.com, solardynamicsinc.com, etc) offer solar fans in various designs and styles and in good quality. But keep in mind not to buy the first fan that caught your attention. Comparison shopping is still the best thing to do for smart buying.

For more information concerning SOLAR CEILING FANS, visit http://www.themodernceilingfans.com.

Using Solar Gable Attic Fans With the Appropriate Vents

Solar Gable attic fans are an environmentally-friendly option for cooling and protecting your roof and attic. These remarkable systems can literally save 30 percent on your home cooling costs. Depending on where you live, your attic can easily exceed temperatures of 160 degrees, acting as an insulator and making your air conditioning unit work overtime.

If you only have small passive vents on your roof, they are usually tragically inadequate in regards to dissipating heat. Essentially, your attic plays the role of a giant radiator as it passes heat into the living area of your home, increasing temperatures and electrical bills.

Alternatively, in the winter, the heat that is trapped up in your attic will often melt accumulated snow on your roof. Unfortunately, as the water trickles down in freezing temperatures, it often refreezes in the eaves which leads to costly, destructive ice damage. Not to mention, moisture trapped in the area will wreak havoc, promoting mildew and mold, often saturating your insulation and leading to fungal decay as well as destruction to your decking and roof frame.

What Makes a Solar Attic Exhaust Fan Different?

A solar Gable fan runs completely on solar energy rather than electricity. Sunlight is transformed into electrical power by use of a solar panel. These are often used along with Gable vents for budget-conscious, effective operation all year round.

The solar panel and vent are positioned in an appropriate location in the gable end of the attic and then they are both mounted. Despite what you may be thinking, installation is easy because there are brackets with the solar panel to allow for easy roof mounting. The solar fan and vent are connected by a simple plug and the result is free power.

The solar panel uses sunlight to work as a generator, allowing the fan to work without electricity from dawn till dusk when cooling is needed most. These systems create air movement in quantities of 800 cubic feet per minute. This will remove damaging winter moisture and uncomfortable summer heat. Additionally, the solar panel is hail, wind and impact-resistant so it can stand up to even the harshest elements.

Solar Gable attic fans are highly efficient and durable, running on a 24-volt DC motor. The shutters are typically white plastic but can easily be painted to match the exterior of your home. They are fuss-free and will open automatically when the fan is running and close back up when it is not in use.

Dave Stevens writes important info about solar gable attic fans at http://www.attic-ventfan.com/solar-gable-attic-fans.php

Solar Fans to Reduce Heat Gain From Cathedral Ceilings

Solar fans have simplified attic ventilation. Having been in the business of ventilating attics for almost thirty years, one of the most difficult (and, in fact, impossible) situations to deal with in completed construction is heat buildup in completed rooms or finished attics with “up to the peak” cathedral ceilings. If you’re an architect, builder or homeowner considering cathedral ceilings, I have recommendations you might consider. The present theory, as reflected in most building codes, is that hot air will travel by convection from the soffit vents, through the styrofoam spacers and exit through the ridge vent.

Our experience has been that this theory does not work very well. In fact, the air below the roof can reach temperatures in excess of 150 DegF. That hot air is rapidly expanding. Unable to escape through the ridge and soffit vents quickly enough, it pushes through the porous insulation, heating up the ceiling and creating a tremendous heat gain to the living area. Very often, even a well-designed A/C system can’t keep up.

SUGGESTION: Design a small attic over the cathedral ceiling. A solar-powered roof fan will exhaust heat from the “attic”, creating a vacuum, thereby pulling in cool air from the soffits through the spacers. This creates an envelope of cool air around the living space, (If you already have some flat ceiling, just add a solar fan).   .

These heat gain forces are the same in a regular stand-up attic. The solution is the same.

The living area with cathedral ceiling will be AT LEAST 10 DegF cooler with proper insulation, soffit vents and a solar roof fan, without the A/C turned on.

Please note: insulation contractors should ensure unobstructed airflow from soffit vents to attic.

Solar powered attic ventilation is one of the most cost-effective ways to improve energy efficiency for air conditioning and to improve LEED score. Typical installed cost is about $550 after tax credits are applied. Federal Energy Tax Form 5695. Energy saving and carbon footprint for cooling can be reduced by 10% to 30%. Payback time is less than 5 years. Every succeeding year is money in the bank!

Architects would be well advised to include and specify quality solar fans during the design phase of a project. We have many request from townhouse style condo owners because the upper floors of the unit are warm, even with the A/C turned on. They are prevented from taking remedial action because they can’t get permission from the Condo Association Committee.

A minimum 10% reduction in energy usage (and proportional reduction in carbon footprint) for cooling is a huge number. Moreover, it’s most effective at the exact time when the stress on the “grid” is the greatest, during hot weather. Cost saving to the utility company by not having to upgrade their infrastructure because of reduced peak demand is substantial.

Steve Pineault, http://www.solarfanman.com (TM), has 30 years experience in ventilating attics. SunRise Solar has been an innovator in solar fan design and production. Projected Cost Benefits. All products are made in the USA. To specify or order call 800-FANS123. We free-ship fans to continental US. (Canada, Hawaii, Mexico, Europe, Middle East, Australia, Asia and South America, Call for quotes.) SunRise Solar fans have been installed in every state and many countries throughout the world.. Quantity pricing available for Condo projects, Specify SolarFanMan.com for quality.

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Catherdral Ceilings: Reduce Heat Gain with Solar Roof Fans -
http://www.solarfanman.com/solar_roof_fans_cathedral_ceilings.php