8 Best Solar Attic Exhaust Fans Reviews of 2021

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Renewable energy is indeed the way of the future. If you live in an area that enjoys plenty of sunshine, then you also have to contend with heat and humidity for the better part of the year. Why pay steep electrical bills in an attempt to cool your home and preserve its structural integrity from the ravages of trapped moisture in the attic when solar attic exhaust fans offer an excellent affordable and sustainable way of cooling down your attic?

When looking for a high quality solar attic fan, there are a few considerations to look for that ensure you get the best bang for your buck.

What to Look for When Buying Solar Attic Exhaust Fan.

There are a lot of solar attic exhaust fans in the market  but not all will be able to deliver on their promise. To ensure you make the right choice which meets your needs, look out for the following.

  1. Performance

You should ensure that you check the CFM (cubic feet per minute) of the fan. This is what tells how much volume of air the fan can move. Solar exhaust fans with high CFM will perform very efficiently during operation.

  1. Square footage

Before acquiring a solar exhaust fan, you will need to determine the square footage of your space so that you purchase the product that is best suited for managing your particular square footage. In some instances you will need to buy more than one unit. That is when the space you need to cater to is greater than the recommended ratio of the fan to square footage.

  1. Durability

This is a key point. When it comes to solar exhaust fans, a robustly constructed exterior and interior is of paramount importance. These fans are mounted on roofs where they are exposed to all elements including rain, heat, cold and dust and are still expected to continue delivering at peak performance. For this to happen, the exterior should be made of non corrosive materials and the interior high-quality hard-wearing materials.

  1. Warranty

The warranty for an electric appliance given by a manufacturer speaks volumes about its quality.  When a manufacturer gives a 20-year warranty on a product, it is a testament to their confidence in its performance, quality and durability.

Review of the Best Solar Attic Fans in the Market.

  1. Solar Attic Fan by Natural Light

This solar attic fan from the makers at Natural Light has a solid build with the highest quality aluminum stainless steel and glass.

The fan is a great solution for effective attic ventilation and is very easy to install on a range of roofs including asphalt – fiber glass and shingle roofs. This particular fan is designed for installation on pitched roofs.

With no wiring required, installation is simple and you can do it yourself in a couple of hours or less.

Every day during full sun hours the 36 watt solar panel powers this fan’s DC motor, venting moisture and hot air out of the attic space and cooling it by as much as 6 degrees. All the while, this powerful fan runs very quietly, you will not even realize it is spinning.

To catch as much sunlight as possible the solar panel is adjustable from flat to a 45 degree angle. The fan is mounted on 3/12 to 12/12 pitch roof. Do note that it is not designed for side wall mounting or flat roofs.

This attic fan vents up to 1628 cubic feet of hot air per minute under the full direct glare of the sun. That is exactly what you need on those blistering hot days to cool and ensure your attic air circulation stays fresh.

It effectively cools every 2625 square feet of attic space which in turn draws hot air from the rest of the house allowing you to enjoy cooler air in all the spaces in your home. Being solar powered, this fan will save you quite a tidy sum that would have otherwise been gobbled up by air conditioning bills.

Sold separately are fire safety switches and optional snap – on thermostat for use in colder climates. The unit comes with a 25 year warranty because the manufacturer has confidence in their product’s high quality components, build and performance.


  • The unit weighs 29.5 pounds
  • Dimensions are 27.25 x 27.25 x 11.15 inches
  • It is made from aluminum, stainless steel, glass
  • It comes in black color
  • The power source is solar
  • Has an air flow capacity of 1628 CFM
  • 36 Watts solar panel
  • Comes with a warranty of 25 years

Customer feedback

Customers who got this unit were happy with how quietly this fan ran and how simple and easy the installation was with very clear instructions. Many were impressed by how efficiently it cooled their attics and the rest of the house by extension.

Overall, this is one of the highest rated solar attic fans that comes highly recommended for excellent performance and efficiency, easy installation process and ultra quiet operation.

  1. iLIVING Smart Exhaust Solar Roof Attic Exhaust Fan

This smart solar attic fan is an excellent solution for not only cooling your house down but also helping you to save on your air conditioning bill while at it.Best Solar Attic Exhaust Fan

Designed to be mounted on pitched Fiberglass -Asphalt Shingle roofs, it is powered by a 20 watt adjustable polycrystalline solar panel ranging from an angle of zero degrees, 15 degrees, 30 degrees all the way to 45 degrees to maximize exposure to the sun.

This iLIVING Smart solar exhaust fan provides 1750 cubic feet a minute of air circulation for up to 2000 square feet space. This cooling capacity is courtesy of the IP68 waterproof brushless motor which runs super efficiently and quietly. Therefore, units’ motor is so whisper quiet that you can barely hear it running.

Spotting a smart thermostat with an enable/disable feature and a control ranging from 65 to 130 degrees Fahrenheit lets you enjoy controlling the fan any way you like. The thermostat ensures that the attic stays cool. Whenever the temperature rises above the ideal level, the thermostat automatically turns the solar exhaust fan on, venting the hot air to keep the attic cool.

Add on features for this fan are purchased separately and easily connected. These include, non – stop 24 hour running AC/DC adapter kit, power cord with, on – off switch as well as a screen guard. This fan comes with a fifteen year warranty. iLIVING has been churning out practical high quality attic fans for years so you know you’re getting value for your money.


  • The weight is 35.4 pounds
  • Dimensions are 21 x 21 x 10 inches
  • Constructed from aluminum, stainless steel, glass
  • Comes in black color
  • The unit is powered by a solar source
  • Has an air flow capacity of 1750 CFM
  • 20 Watt solar panel.
  • Comes with a 15 year component warranty

Customer feedback

Customers who got this  unit pointed out that it was easy to install and ran with minimal noise. Users were impressed with  the inbuilt thermostat which efficiently controlled the fan keeping the attic cool. They also loved that the smart thermostat feature enhanced the venting efficiency of the iLIVING solar fan and saves you from getting to it and manually turning it on.

  1. Solar Attic Exhaust Fan with Thermostat and Humidistat by Remington Solar

Given that during the summer months temperatures in attics can rise to over 140 degrees Fahrenheit draining your resources through high energy bills, this solar roof fan by Remington Solar with its capability of dealing with heat and moisture, is an ideal solution for ventilating your attic.

Making use of free solar power, it ramps up the airflow in your attic  cooling these spaces which in turn draws out the heat from the rest of the house.

This gives your air conditioning system some relief and lowers your energy consumption  ensuring funds that would have gone to pay air condition bills stay in your wallet.

Mold and moisture in your attic can spread fungi spores into the living spaces bringing illness and allergies to your family. When mold and moisture get a foothold in your house it lowers the value of your home.

To avoid this scenario, use the solar attic fan with thermostat and humidistat to fight moisture and mold in your attic. It will dehumidify the air ensuring the environment cannot sustain the growth of mold.

To avoid heat and moisture damage to your attic and huge repair bills as a result, consider installing this Remington solar roof fan which includes an inbuilt thermostat and humidistat. That feature enables the unit to adjust the airflow to accommodate your attic space needs.

To be on the safe side you can purchase the fan’s hybrid adapter separately to keep it running at night further ensuring your attic is properly ventilated keeping it dry. This 110 volt hybrid adapter can automatically sense low power from your solar panel at the same time measuring the temperature and humidity in your attic to gauge if it should tap into the house electric power.

The fan is designed for a lifetime of use. It has a 20 watt solar panel that powers a brushless motor which turns without friction or wear extending the life of your fan.

It runs very quietly at a near inaudible level. This solar attic fan is very robustly built being hail and weather resistant. It can comfortably ventilate 1800 square feet.


  • Has a weight of 25 pounds
  • Dimensions are 22 x 22 x 11 inches
  • Comes in black
  • Uses solar as the power source
  • Has an air flow capacity of 1450 CFM
  • 20 watt solar panel
  • Comes with a 15 year warranty

Customer feedback

Customers who purchased this fan were impressed that it significantly reduced the attic temperature and humidity. A majority mentioned that it was a worthwhile investment that would pay for itself with the savings from lower energy bills. Most users agreed that this fan really helps combat mold in their space.

  1. Eco-Worthy 25W Solar Powered Attic Ventilator Gable Roof Vent Fan

This portable solar powered attic fan is very versatile. It can be used for a home attic, RV, greenhouse, garage or outdoors.

It has a 27.6 inch long and 13.8 inch wide foldable solar panel weighing 13.47 pound which is very easy to carry when folded.

The fan’s 30 watt solar panel powers the highly efficient 25 watt brushless motor. This solar fueled fan has a capacity to vent 1960 cubic feet a minute and can be mounted in two ways depending on how you want the air to flow. For the air to blow out mount it with the blades facing away from you. For it to suck in air, install it with the blades facing you.

This solar roof vent fan is simple and very easy to install. It comes with a pre-installed 8-inch solar cable with a quick connector while a 16-feet solar cable with quick connect wires is connected to the solar panel.

In the attic, it can be mounted in the gable vent. With its 1960 CFM capacity this solar fan will increase the airflow in your attic cooling it and this will reduce the the strain on your air conditioning.

When you are outdoors fishing, climbing or at a picnic you can carry this solar fan in your backpack because it is light and small. When it gets hot just unfold the solar panel place it in the sunlight and connect it to the fan and enjoy a cool breeze.

The solar attic fan works even at low voltage, the minimum being 4 volts ensuring that even on overcast days you get ventilation.


  • The weight is 13.47 pounds
  • Dimensions are 15.2 x 14.5x 9.8  inches
  • Comes in black
  • The power source is solar
  • Has an air flow capacity of 1960 CFM
  • 25 Watts solar panel
  • Has a warranty of 5 years for solar panel/1 year for fan

Customer feedback

Users who purchased this fan were happy that it worked even in low sunlight. Many were impressed with the fact that it was very easy and quick to set up. Additionally, users appreciated that this solar fan is double sided so it can blow air out or suck it in giving them options for different ventilation needs.

  1. QuietCool 40 Watt Solar Powered Roof Mount Attic Fan

QuietCool solar roof mount attic fan is built with its fully adjustable solar panel tilting upto 60 degrees and capable of  180 degree rotation. It takes advantage of every bit of sunshine to vastly increase the air flowing in your attic keeping it cool and by extension also cooling the rest of your house.Solar Attic Exhaust Fan

Powered by a 40 Watt sun fueled panel, this fan features an ultra energy efficient brushless motor technology that lets the fan run without wear and friction. The brushless motor makes it run very quietly you hardly know it’s there.

This fan has an AC/DC inverter, a preset thermostat set at 75 degrees and a robust heavy duty steel housing.

QuietCool solar powered roof mount attic  fan will help to  keep the structure of your roof intact by venting the humid hot air preventing moisture build up. Furthermore, like all solar fans, this fan will ease the load off your air conditioning system prolonging it’s life and allowing you to save a good amount of money on your air conditioning cost.

The AC/DC inverter that comes with the fan keeps the fan operating on solar power only as long as the sun is up. When there is no sun or at night it switches to AC power tapping into the house electricity allowing it to run day and night for optimum ventilation. As a result, it maintains the attic temperature to within 10 degrees of the outside temperature at all times of the day.

The built in thermostat is preset at 75 degrees preventing it from running when it’s cold outside saving the heat in the attic.

QuietCool has used high quality materials to build a sturdy  efficient practical fan that performs its intended function very well.

Using QuietCool solar powered roof mount attic fan is going green and  can save you 30% through tax incentives in the states of Arizona, Massachusetts, Hawaii, Montana, Iowa, New York, Louisiana, Oregon, Utah and South Carolina.


  • The weight is 42 pounds
  • Dimensions are 25.6 x 25.4 x12. 9 inches
  • Comes in black
  • Use both solar AC/DC
  • Has an air flow capacity of 1092 CFM
  • 40 Watt Solar Panel
  • Comes with a warranty of 15 years

Customer feedback

Users who got this fan were happy with its sturdy build and  the fact that it actually reduced the attic temperature as advertised. Others mentioned that being able to run on both DC and AC was very useful. They were able to run the fan  even at night. They also loved that the assembly of this fan is very easy. Once it’s mounted on your roof, simply plug in the inverter and it’s good to go.

6. Amtrak Solar 70 Watt Steel Roof Mounted Solar Attic Fan

This Amtrak solar fan is another excellent solution for cooling and ventilating your attic on humid hot days. It can also be mounted in green houses, RVs sheds, boats, warehouses, workshops and any other places that require efficient solar powered cooling.

The Amtrak Solar 70 Watt Steel Roof Mounted Solar Attic Fan features a 70 Watt high quality crystalline solar panel that soaks up the sun to power the powerful fan motor. The fan set in a corrosion resistant galvanized steel frame has a 12 volt motor configured to be compatible with the solar panel.

Solar panels that have low wattage cannot get enough power to run the fan efficiently that is why the Amtrak Solar fan spots a 70 Watt Solar panel to avoid such a scenario.

When the first rays of sunlight hit the crystalline solar panel the fan turns on and keeps running  till the sun goes down ensuring the attic is cool and fresh air is circulating properly all day. Installing this fan is easy and simple. You won’t need any permit, no inspections are required and no electrician is needed. Wiring is quick and straightforward.

The heat trapped in the attic over loads your air conditioning system causing it to really strain, increasing your air conditioning energy consumption. Installing The Amtrak Solar Roof mounted attic fan solves these problems saving you money. This solar attic fan using its high powered fan, vastly increases the air flow in your attic venting out the hot and moisture laden air resulting in a much cooler, dryer attic, as well as a cooler home.

This fan can blow air out or reverse direction to suck air in depending on how you connect it.

The solar panel produces free power for over 30 years making it a great purchase and a huge money saver for you.


  • Has a weight of 42 pounds
  • Dimensions are 25.6 x 25.4 x 12.9 inches
  • Comes in black
  • Uses solar as its power source
  • Features an air flow capacity of 1628 CFM
  • 70 Watt Solar Panel
  • Has a warranty of 15 years

Customer feedback

Customers who got this unit were impressed that they way it cooled down the house kept the air conditioning turned off for longer periods. Not only only does it make a significant contribution towards cooling the house, it also helps save on the cooling energy consumption. On to of that, it is easy to work with.

  1. Broan-NuTone 345SOWW Surface Mount Solar Powered Attic Ventilator

Broan-Nutone solar powered attic Ventilator features a 28 watt rugged, tempered glass solar panel soaking up sunlight and converting it to electric power to run the DC motor. This spins the 12 inch, one – piece five bladed aluminum fan circulating air in your attic at a breezy 537 cubic feet a minute.Best Solar Attic Exhaust Fan

As a result, it ensures your living area is kept cool and extends the life of your air conditioning system.

The Broan 345SOWW Surface Mount Solar Powered Attic Ventilator housing  is  made of molded  UV stabilized, toughened ABS  plastic that has been color dyed and rugged tempered glass solar panel. The robust build sees to it that deterioration as a result of weather elements is prevented. This unit can also withstand large hail.

The unit is aesthetically pleasing as the low profile integrated design sits unobtrusively on your roof without the need for pivoting stands or props. Its housing is also UV stabilized and truly weather resistant.

The aesthetic look is maintained for the long haul because the materials do not fade or delaminate over time. The fan housing can be painted to match the color of the roof or any color you like.

Designed for shingle roofs, installation is easy and quick because it has a compact base footprint which allows the cutting of fewer shingles and includes positive stops in the housing frame to seat the dome.

Included in this unit are corrosion resistant galvanized steel brackets which serve to effectively keep out animals, birds and insects without compromising the flow of air. The heavy gauge aluminum screen is great for warmer climates where condensation and cold weather is not an issue. You can install an optional thermostat which disables the motor when temperatures fall below 50 degrees helping to extend the life of the motor.

During summer when temperatures soar to above 140 degrees in poorly ventilated enclosed attic spaces is when The Broan 345SOWW solar attic Ventilator comes to save the day. The fan is powerful and can entirely run on solar.

The rugged 28 watt tempered glass solar panel is adept in soaking up the sunlight from early morning till the sun goes down with great efficiency. The one piece 5 blade aluminum fan with a 12 inch diameter is pitched for maximum air flow and married to the dynamically balanced whiper quiet DC motor. Its performance is unmistakeably powwerful.

The aluminum 5 bladed fan is capable of 537 CFM and the unit is practical, easy to install in addition to being aesthetically pleasing.


  • Has a weight of 20.7 pounds
  • Dimensions are 29.9 x 7.75 x 25. 5 inches
  • Comes in black and weathered wood
  • Uses solar as the source of power
  • Has an airflow capacity of 537 CFM
  • 28 Watt Solar Panel
  • Comes with a 1 year warranty

Customer feedback

Customers who purchased this unit were impressed that it reduced the temperature in the attic by upto 20 degrees. Others mentioned that it was really easy to install. They all said that the molded low profile design of  the Broan 345SOWW solar ventilator looks good and it is also functional ensuring that even in a storm with high winds, the streamlined contours will offer little wind resistance preventing it from getting ripped off the roof.

  1. Solar Roof Vent Solar Attic Fan by Solar Blaster

This fan by Solar Blaster also solves the moisture issues through the power of the sun. To effectively ventilate an attic space, one fan should ideally cover every 600 square feet of roof area. It is important to ventilate a home’s attic evenly across the whole attic space. This explains why you will often see a home with numerous passive vents installed. A solar attic fan such as this is just what you need to ventilate your garage, home, utility shed, garden, or storage room.

To evenly cool the whole attic, it means cool air has to come in from the eave’s soffit vents and flows along the whole roof deck and rises escaping through the passive vents at the top. This uniform flow of air keeps the rafters , plywood  and trusses moisture free and dry.

The solar Blaster fan’s main benefit is vastly enhancing the efficiency of your passive roof  ventilation system aiding in higher circulation of air.

This solar fan comes with a 3 watt solar panel which is attached to the top of the vent hood by stainless steel clips. The unit is installed on a 9 inch metal slant back roof vent with  16 inch by 30 inch flashing to prevent water from getting through the joints into the house.

It’s meant to be mounted on roofs with a pitch above a 3/12. It can be installed from outside without needing to a access the attic. With no wiring required installation is easy and simple.

Housed in the weathered bronze frame is a fan that has two ball bearings, spinning at 2700 revolutions per minute capable of venting 39 cubic feet of air per minute and is rated  for 50,000 hours.

The slant Blaster fan has a robust metal construction designed to last for a lifetime on your. That is a big contrasts from plastic option in terms of durability. Plastic is susceptible to heat especially on a hot roof and will fade and fall apart after becoming brittle.

This fan runs even in winter venting moisture due to condensation and in summer getting rid of hot air out of attics.


  • The weight is 6.59 pounds
  • Dimensions are 20.3 16 x 6.5 inches
  • Comes in weathered bronze
  • Uses solar to power the unit
  • Has an air flow capacity of 39 CFM
  •  3W solar panel
  • Comes with a 25 year Warranty

Customer feedback

Customers who purchased this fan were impressed by how effectively it cooled their attics and consequently resulting in the house being cooler and at very low cost. Users loved the fact that the fixture is barely audible. They also loved that this solar fan can be easily mounted on the roof without requiring access to the attic. The fact that it does not need wiring makes it so simple to install

Final Thoughts on this Review of the Best Solar Attic Exhaust Fans

With such an array of solar attic exhaust fans to choose from, repairs to damaged attics which are typically very expensive no longer become a concern. Keep in mind, an effective solar attic  exhaust fan can reduce temperatures in your home by up to 40°F in the summer.

You enjoy clean fresh air, in a cooler home that is not riddled with unseen allergens. Enhance the comfort and integrity of your home with any of the comprehensive solar powered attic solutions reviewed above.




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