Looking for a simple and efficient way to keep your attic cool and dry all year round? Here are some of the best solar attic fans that you can choose from.
Let’s face it: Attics can get extremely hot, especially during summer months. The sun beats down on your roof, heating up the air inside your attic. And without proper attic venting, moisture and heat could easily build up causing structural decay and damage to framing and insulation materials.
That said, one of the best and most efficient ways you can ventilate your attic is by installing a solar attic fan. The best solar attic fan is almost maintenance-free and requires no electrical wiring, allowing you to ventilate your attic without all the hassles.
Part of solar fans series
Solar attic ventilators operate at zero cost during the day since they are powered by solar power. They also help vent excess heat and moisture from your attic, keeping your home comfortable, AC unit from overworking, and preventing structural damage.
However, with lots of different models available on the market, choosing the right one can be pretty overwhelming. As such, we’re going to look at some of the best solar attic fans out there and what to look out for to make sure you choose the best solar power attic ventilator for your attic’s needs.
So, let’s get right into it:
Best Solar Attic Fans comparison
Reviews of 10 Best Solar Attic Fans with 25 year warranty
Best Pick: iLIVING HYBRID Ready Smart Exhaust Solar Roof Attic Exhaust Fan
Our top pick is the iLIVING HYBRID Ready Smart Exhaust Solar Roof Attic Exhaust Fan, which works efficiently in venting excess heat and moisture from your attic during the day as well as at night. We also liked that it’s a smart device, it has a solid build quality, and comes with a 15-year long warranty.
1. iLIVING HYBRID Ready Smart Exhaust Solar Roof Attic Exhaust Fan
Topping our Solar Attic Fan Reviews and also one of the best selling products on Amazon, the iLIVING HYBRID Ready Smart Exhaust Solar Roof Attic Exhaust Fan stands out for its quiet operation, high efficiency, quality craftsmanship, and user-friendliness.
This solar attic fan by iLIVING is made of high quality material comprising aluminum, nylon – fiber-aluminum, and steel to ensure improved durability for a lifetime of use. It also has a waterproof fan that comes with a brushless motor.
When it comes to performance, this attic fan features a highly efficient 20-watts solar panel that provides enough power to generate up to 1750 Cubic Feet Per Minute of airflow capacity. This way, you can easily eliminate warmth and moisture from larger attics of up to 2,200 square feet with this attic fan.
The polycrystalline solar panel is adjustable, so you can easily tilt it for maximum sunlight. The powerful, brushless motor operates quietly so you can enjoy a peaceful night sleep.
Another cool feature of the iLIVING HYBRID Ready Smart Exhaust Solar Roof Attic Exhaust Fan is the smart thermostat, which allows you to adjust the temperature settings from 65°F to 130°F. The smart thermostat also features an enable/disable function, letting you control the fan how you want.
What’s more? This solar-powered attic fan comes with a 15-year warranty, so you don’t have to worry about any malfunctions.
- Comes pre-assembled, making installation a breeze
- The thermostat makes adjusting the temperature leves easy
- Comes with a 15-year warranty
- Operates quietly
- Well-built using high quality materials
- Adjustable solar panel allows for maximum sunlight absorption
The fan runs nonstop if you use the AC adapter
2. Best with a Thermostat: Remington Solar 40-Watt Solar Attic Fan[MOU3]
Coming second on our list is the Remington Solar 40-Watt Solar Attic Fan, which is one of the top rated solar attic fans on Amazon for its reliability in providing ventilation to attic area.
The Remington Solar 40-Watt Solar Attic Fan features a built-in thermostat and humidistat, automatically changing airflow based on your needs. This helps prevent mold and heat buildup, which could lead to costly damage to your attic.
This 40-watt fan generates an airflow of up to 2340 CFM, which is sufficient to keep large attics of up to 3400 square feet cool and dry 24/7.
Another unique feature of this solar attic fan is the 110v Hybrid Adapter, which automatically switches power at night to reduce moisture and temperature levels in your attic. It also helps prevent the risk of ice-damming in winter.
The fan boasts a sleek, water-proof design made of powder-coated steel with steel mesh. The blades are made of a poly-vinyl material and a brushless 24V motor that operates ultra-quiet without wear for lasting durability.
Additionally, this solar-powered attic fan is pretty easy to install and comes with a 15-year warranty plus a 30-day satisfaction guarantee.
- Designed with noise-dampening technology for quiet operation
- Made of high quality materials for improved durability
- Can ventilate large attic spaces of up to 3400 square feet
- Reduces the risk of ice-damming during winter
- Comes with a thermostat and humidistat pre-installed
- Easy to install
- Backed by a 15-year warranty plus a 30-day satisfaction guarantee
- Can be expensive for some
3. Most Portable: ECO-WORTHY 25W Solar Attic Fan
Boasting a unique foldable design, the ECO-WORTHY 25W Solar Attic Fan is designed specifically for those looking for a fan that can be moved around easily and also operate at low voltage.
One of the highlight features of the ECO-WORTHY 25W Solar Attic Fan is the foldable design of its 30 Watt poly solar panel. This means you can easily fold it down into a compact size of only 13.8*13.8*1.5 inches, allowing you to easily mount it almost anywhere or take it with you to fishing or camping trips.
This product boasts a 5-blade fan that’s designed separate from the solar panel, allowing you to conveniently install it over your roof and mount the panel where it receives maximum sunlight. Despite its small size, this solar attic fan generates up to 1960 CFM of airflow, allowing you to ventilate an attic of up to 2200 square feet.
More interestingly, this fan is also designed to operate at low voltage of only 4V, meaning it will ventilate your attic even on cloudy days. It comes with an 8-inch solar cable with quick-connector pre-installed and a 16 feet solar cable, making installation hassle-free for you.
- Foldable design, allows for increased portability
- Works at a low voltage, making it efficient even in low light condition
- Hassle-free to install
- Moves enough air to ventilate attics of up to 2200 square feet
- Also great for use on camping and fishing trips
- Great budget-friendly option
- Doesn’t come with an adapter, thermostat, or humidistat
- Requires a battery to run at night
4. Best Surface Mount: Broan-NuTone 345SOWW Surface Mount Solar-Powered Attic
Featuring a low-profile, self-contained design, the Broan-NuTone 345SOWW Surface Mount Solar-Powered Ventilator makes an attractive, unobtrusive addition to your roof.
This compact solar attic fan boasts a solid build quality, featuring a rugged ABS plastic housing with a UV-stabilized, color-dye and a tempered glass solar panel. This makes it robust enough to withstand harsh weather elements such as heavy rain, hail and wind.
It has a low-profile design with a compact base, which not only makes installation quicker and easier but also looks great on nearly every rooftop.
This solar attic fan features a 28-watt polycrystalline solar panel that works efficiently in converting solar energy into electricity, ventilating your attic all day long. It features a 5-blade fan that’s optimized to maximize airflow, generating a ventilation capacity of up to 537 CFM. This allows you to keep an attic of up to 3200 square feet cool and dry year round.
This solar-powered ventilator by Broan-NuTone also features a dynamically balanced DC motor, which runs the fan efficiently and quietly even at full speed.
- Compact, low profile design, allows for easier installation
- Designed to look great on virtually any rooftop
- Precision-balanced blades ensure maximum airflow
- Built to last using high quality materials
- Available in two color options to choose from
- Operates quietly
- Doesn’t come with a thermostat or humidistat, so you can’t run it at night
- It’s a bit bulkier than other models
5. Best Upgrade: Remington Solar 30-Watt Solar Attic Fan
Another great solar attic fan by Remington Solar, the 30-Watt Solar Attic Fan comes as a complete package, ready to cool your attic right out of the box and save you thousands on electricity bills.
This unit comes with a 30-watt polycrystalline solar panel that provides enough power to run the fan all day and reduce your energy bills. It features a built-in humidistat and thermostat, which adjusts the airflow automatically depending on your attic’s needs. This way, you’ll be able to cool your attic even when you’re not at home.
This Solar Power Attic Ventilator also features a brushless motor that operates efficiently even after hours of work without any friction or wear, ensuring lasting durability. The motor also operates quietly and requires little to no maintenance.
The fan provides a maximum ventilation capacity of 1550 CFM, allowing you to easily cool attic spaces of up to 2200 square feet. You may also appreciate that this attic fan is backed by a 25-year warranty plus a 30-day money back guarantee.
- One of the best solar attic fan with 25 Year warranty
- Also comes with a money back guarantee for a full refund
- Operates with minimal noise levels
- Has a built in thermostat and humidistat, keeping your home cool and dry all day
- Easy to install and ready to use right out-of-the-box
- The fan moves plenty of air
- Requires direct sunlight to keep it running
- The solar panel isn’t adjustable
6. Best for Smaller Attics: Remington Solar 20-Watt Solar Attic Fan
For smaller attics, you may not need as much power. And that’s where the 20-Watt Solar Attic Fan by Remington Solar comes in, providing just the right amount of airflow to keep your attic cool and dry.
Measuring 23 x 23 x 8.75 inches, this solar power attic ventilator is designed compact enough to sit discreetly on any rooftop. It comes integrated with a 20W solar panel, generating nearly 1280 CFM of airflow for efficient venting of moisture and heat from smaller attics of up to 2000 square feet.
It comes equipped with a humidistat and thermostat, which adjusts the fan speed automatically to ensure efficient cooling of your attic all day. This also saves you the hassle of manually adjusting the settings every now and then to meet your attic’s needs.
This compact solar attic fan also comes with a 110V Hybrid Adapter, which automatically switches your unit to use electricity, allowing you to ventilate your attic on cloudy days and at night. Once it detects sunlight, the hybrid adapter will switch your solar attic fan back to solar power automatically.
It is well-built featuring a powder-coated finish, so you don’t need to worry about it getting damaged even in the harshest weather.
- Backed by a 15-year warranty and a 30-day money back guarantee
- Designed durable enough to withstand harsh weather elements
- Compact design makes installation easy and faster
- Generates the right amount of airflow to ventilate smaller attics
- Can ventilate at night and in cloudy weather using the included 110V Hybrid Adapter
- Automatically adjusts the fan speed, so you don’t have to do it yourself
- Operates smoothly and quietly
- Requires constant sunlight to work
- Can be difficult to disassemble
7. Most Durable: Natural Light Solar Attic Fan (25 year warranty)
Next up on our list is the Natural Light 48W solar attic fan which stands out for its solid build quality, making it a perfect option for those looking for the most durable solar attic fan.
Natural Light 48W solar attic fan is made of top-grade aluminum, stainless steel, and glass. It is also powder-coated both inside and out to ensure lasting durability against harsh weather elements. This durable solar attic fan also features an animal protector, which helps protect it from getting easily damaged by pesky critters.
The solar attic fan boasts a powerful five-blade fan, which provides you with a venting capacity of up to 1,881 CFM. This allows you to keep your 2,825 sq ft attic cool and dry throughout the year. This attic fan is powered by a 48 watts solar panel which you can adjust at an angle of 45 degrees for maximum sunlight and greater efficiency.
The best part is that you get a 30 percent Federal Tax Credit if you purchase this solar attic fan in 2021. On top of that, this product is backed by a generous 25-year warranty, guaranteeing to serve you for many years to come.
What’s more? This solar powered attic fan comes assembled and with easy-to-follow instructions, which allows you to easily install it yourself.
- Made of high quality materials for maximum durability
- The solar panel can be adjusted for maximum sunlight
- Powerful 48-watts solar panel produces enough electricity to keep the fun always running
- Comes with a 30 percent Federal Tax Credit
- Backed by a generous 25-year warranty
- The fan is powerful enough to cool large attics of up to 2825 square feet
- East too install with easy-to-follow instructions
- Comes pre-assembled
- Tile Roof Flashing and Turret extension kits are sold separately
- Fire safety cutout switch and thermal snap switch not included
8. Most Versatile: Amtrak Solar Powerful 50-Watt Galvanized Solar Ventilates
Featuring a portable and easy-to-install design, the Amtrak Solar Powerful 50-Watt Solar Ventilate makes a perfect option not only for your attic but also RV, garage, and even your cabin.
This solar attic fan features a sleek design and comes with quick-connect wires, brackets and a simple-to-follow installation process, which makes mounting it on your rooftop a breeze. You also don’t have to make any holes on your roof to install it, saving you valuable time and effort.
The solar panel and the fan come as separate units, meaning you can install the panel where it’ll get maximum sunlight without having to move the fan. This also means you can install it on almost any place you want to ventilate hassle-free.
It boasts a 10-inch 5-blade fan, which provides an airflow capacity of nearly 1760CFM, allowing you to cool attics of up to 2250 square feet. The high efficiency 50-watt solar panel generates enough electricity to run the fan round the clock, allowing you to ventilate your attic at night and during cloudy weather.
However, if you’re looking for a more portable and low-priced option for outdoor use, camping, and off-grid living, consider getting this 12’’ Solar Powerful Attic Exhaust Fan by Amtrak.
- Versatile design ideal for use in your attic, shed, greenhouse, garage, or RV
- Doesn’t require making any holes in the roof to install it
- Galvanized steel body ensures maximum durability
- Comes with quick-connect wires and brackets, making installation hassle-free
- Operates with minimal noise emission
- Powerful solar panel allows ventilation during cloudy weather and at night
- Comes at an affordable price
- Comes with a free thermostat
- Doesn’t come with a humidistat or adapter
9. Best for Large Attics: GBGS Solar Powered Exhaust Fan
For large attics, you may need a more powerful solar attic fan such as the GBGS Solar Powered Exhaust Fan with an AC power backup and a high efficiency solar panel.
As the best option on our solar attic fan reviews for cooling large attics the GBGS Solar Powered Exhaust Fan can be powered by solar during the day and via regular AC power at night. This means that it will keep your attic ventilated throughout the day and even on cloudy days.
It comes with a smart controller that automatically switches between solar power and regular AC power, ensuring the fan works efficiently even when the weather is unfavorable. It features a highly efficient 20W polycrystalline solar panel that can be adjusted 90 degrees horizontally and up to four different positions vertically to ensure it receives maximum sunlight.
Unlike the other solar powered attic fans on our list, this solar power attic ventilator comes equipped with a powerful 14’’ 7-blade fan that delivers an airflow capacity of 1750CFM. This allows you to ventilate larger 4200 square-foot attics efficiently.
It also has a waterproof brushless DC motor that operates efficiently and quietly and a thermostat, which automatically controls the temperature of your attic. It is designed easy to install on flat, shingled, and pitched roofs.
- Solar panel can be adjusted both horizontally and vertically for maximum sunlight exposure
- Powerful enough to cool large attics of up to 4200 square feet
- Can be powered by solar or via regular AC, cooling your attic at night and on cloudy days
- The fan operates quietly and doesn’t rattle even at full speed
- Ideal for flat, shingled, and pitched roofs
- Easy to install and operate
- Might not run at full speed with just solar power alone
- Doesn’t come with a humidistat
10.Best All-in-One: Pumplus Powerful 30W Solar Powered Attic Fan
If you’re looking for a solar attic fan that comes with everything you need to run a solar fan system in your home, you can’t go wrong with the Pumplus Powerful 30W Solar Powered Attic Fan.
This solar powered attic fan by Pumplus comes as a complete package including a 2600mAh lithium battery that stores power from the solar panel during the day, letting you ventilate your attic at night and during rainy days.
It also comes with a foldable 30W solar panel, which folds down into a compact size so you can easily carry it on your camping trips or other outdoor activities. The solar panel works efficiently, taking less than an hour to fully charge the battery when under direct sunlight.
The unit boasts a powerful 5-blade fan that generates an airflow capacity of up to 3000CFM, keeping your home fresh and cool throughout the day. It features a durable construction made of heavy-duty steel with anti-rust particle paint, serving you for many years to come.
It has pre-drilled mounting holes and comes with simple connectors, making it easy for you to install it on your gable or attic.
- Easy to install
- Comes with a battery for extended life of the fan system
- Foldable solar panel, makes it great for outdoor activities
- Highly efficient solar panel
- Provides a high airflow capacity
- It is well made to ensure lasting durability
- Comes as a complete package
- Lightweight and compact design
- Installation manual not included
Buyers Guide: What to Look for When Buying a Best Solar Attic Fan with 25 year warranty
Just like any other product, there are several things you need to take into consideration when you’re out shopping for a solar attic fan to ensure you get the right one for your attic’s needs.
Some of the crucial things to keep in mind when buying a solar attic fan include;
The Size Of Your Attic
The first thing to consider is the square footage of your attic to ensure you buy a solar attic fan that can efficiently cool your attic space. For instance, most 25-watt and 50-watt models are designed great for ventilating attic spaces of up to 2500 square feet. If your attic is larger than that, you should consider choosing one that’s above 30-watt.
Based on your attic’s square footage, you will be able to choose a solar attic fan that provides enough airflow capacity to ventilate your attic. The capacity is measured in cubic feet per meter(CFM). Choosing a solar panel with high wattage can also help keep your fan running even with minimal sunlight.
The Type of Roof You Have
It is also equally important that you consider the type of roof you have as some solar attic fans are designed specifically for slanted or pitched roofs, flat roofs and others for gable.
While some models can be customized to allow installing them on different types of roofs, choosing the right one for you type of roof can help save you lots of invaluable time and hassle doing the modifications.
The type of construction material used can hugely impact the durability of your attic fan. And since you don’t want a unit that will fall apart after several days or weeks of use, consider one made of a metal construction instead of plastic. This can be a fan made using aluminum or stainless steel material that will hold up well against excessive heat and moisture.
The body should be painted or galvanized to make it rust and corrosion resistant. Also, make sure the solar vent has an animal screen protection.
AC Backup System
You may also choose a solar attic fan with an AC backup system if you live in an area with extreme hot and humid climate and need to ventilate your attic even at night. The AC power backup allows you to also keep the fan running even during rainy days or cloudy weather.
Another equally important feature to look out for in a solar attic fan is a thermostat control. A thermostat will automatically switch on the fan and start removing heated air once the temperature inside your attic goes beyond a set level, cooling your attic.
It also shuts off the fan after the temperature within the attic falls below the set levels. This means you don’t have to manually flip the switch or monitor the temperature levels yourself. It also helps you save on energy bills by running the fan only when it’s needed.
You may also want to choose a solar attic fan with an optimized fan and motor, ensuring that it runs with minimal noise levels to keep your house peaceful in relative silence. Most of the newer models are designed with smaller fans and tuned motors that operate efficiently and quietly with less turbulence.
Finally, it’s important that you check the warranty of the solar attic fan. The longer the warranty the more confident you’ll feel about the durability of the product. There are many best solar attic fans with 25 years warranty available on the market. There are also others that are backed by a 15-year warranty.
Some even come with a 30-day money back guarantee on top of the warranty, allowing you to claim for a full refund in case it doesn’t work as expected or falls apart within the first 30 days of use.
Additional Features and Considerations
Other additional features you may want to look out for include an on and off switch, which allows you to manually operate the unit when you don’t want to ventilate the attic such as during winter. You may also want to choose one with a humidistat that lets you eliminate excess moisture within your attic without interfering with the temperature levels.
For aesthetics, choose a solar attic fan with a color that complements the rest of your house and one that will look great when installed on the wall or roof of your home.
What is a solar attic fan?
A solar attic fan is a simple and energy efficient ventilation system designed to reduce the load on your home’s AC by removing excess heat and moisture from your attic space.
Can a solar attic fan save you money?
Yes, a solar attic fan can save you money on electricity bills by reducing the load on your home’s AC. And due to the fact that it is powered by solar energy means you don’t spend on electricity bills to keep it running.
How does a solar powered attic fan work?
A solar attic fan works by harnessing the power of the sun using a solar panel. The solar energy is then converted into electricity which is used to power the fan’s motor and increase airflow.The increased airflow from outside is then exchanged with the heated air inside your attic through the vent. This keeps your attic cool and fresh all day.
How long can your solar attic fan last?
Most of the best rated solar attic fans built with brushless motors can last anything between 115 to 25 years. With proper care and maintenance, a solar attic ventilator can be a one time investment.
As you’ve seen from our solar powered attic fan reviews, there are many reasons why you should consider installing a solar attic fan in your home instead of an electric attic fan. Firstly, a solar attic fan works as efficiently as an electric model in cooling your attic. It makes you more environmentally conscious while also helping you save money on your monthly energy bills.
With so many different models available on the market, be sure to take the above-discussed factors into consideration when buying a solar attic fan to ensure you get the right one for your attic’s specific needs.