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The Best Solar Powered Attic Fans

The Best Solar Powered Attic Fans

If you’re looking for an innovative and eco-friendly home cooling solution, it’s a great time to consider solar attic fan setups’ benefits. What is a solar attic fan, I hear you ask? Well, a solar attic fan is exactly what it says on the tin; an attic fan that, rather than being powered solely by mains DC, is instead in part or wholly powered by the sun’s rays.

These fans are an excellent choice for home setups as they often only need a single hole cut for the fan itself and no complicated wiring work after that. They also run incredibly quietly and can be set up to alternate at night for a 24/7 cooling system. You’ll save not just the environment but also a good deal of cash in the long run, as, after all, the sunlight on your home is always free!

Solar attic fans differ in their aesthetics, functions, and outputs, so to make things easy here’s a list of the best models and makes available online, along with all of their key specifications. Simply pick the fan that’s right for you.

1. Remington Solar Attic Fan 20-Watt

This practically inaudible solar-powered attic fan from Remington is a nice mid-range option in terms of both price and power output. Its modest 20-Watt output only requires a small amount of sunshine to work while still strong enough to cover up to 2000 square feet of space for ventilation. Plus, if you’re willing to purchase the Wi-Fi thermostat and night-time hybrid adaptor add-ons, you’ll have a seriously smart piece of kit on your hands.

Features

  • Night-time hybrid adapter (sold separately) 
  • Hail and weather-resistant
  • Ventilation: 2000 SQ.FT

Specifications

  • 20-Watt
  • Dimensions: 23” x 23” x 8.75”

2. Amtrak Solar 70-Watt Solar Attic Fan

This moisture-resistant solar attic fan from Amtrak sports a bumper 70-Watt output, owing to its extra-large size. Perfect for greenhouses or outdoor sheds, this fan is bigger than most and therefore provides faster, more powerful cooling, though it may run louder as a result. The solar panel itself comes with brackets and wiring for easy installation, making this a great one-stop purchase.

Features

  • Moisture-resistant
  • 25-year warranty
  • Brackets and wiring included

Specifications

  • 70-Watt
  • Dimensions: 31” x 27” x 4”

3. iLIVING Hybrid 20-Watt Solar Roof Attic Fan

If you’re looking for an all-in-one solar attic vent fan, then the iLIVING Hybrid 20-Watt is well worth your consideration. This fan setup comes with various cutting-edge smart features, including a built-in thermostat with a toggleable bypass feature and four easy-to-use temperature settings, accessible via a dial within the fan’s housing. Other sizes and control options are also available, so you can pick a combination that suits you perfectly.

Features

  • Smart thermostat
  • Four temperature settings
  • Ventilation: 2000 SQ.FT
  • IP 68 waterproof brushless motor with a fifteen-year warranty

Specifications

  • 20-Watt
  • Dimensions: 21” x 21” x 10”

4. CanadaGoGreen 4 Seasons 10-Watt Solar Powered Vent

A sturdy solar attic fan with a small output and gentle cooling system, the CanadaGoGreen 4 Seasons setup is a compact option for small spaces of 500 square feet or less. A quiet motor makes this ideal for usage in smaller homes, while rain and snow-resistance mean you’ll never have to worry about storm damage, even in the most turbulent of climates.

Features

  • Quiet motor
  • Rain, hail and snow-resistant
  • Ventilation: 500 SQ.FT
  • Hurricane tested
  • Animal-proof construction

Specifications

  • 10-Watt
  • Dimensions: 17” x 17” x 4.7”

5. Remington Solar 25-Watt Solar Attic Fan

The Remington 25-Watt solar-powered attic vent fan comes with a built-in humidistat and thermostat, each capable of automatically altering the fan’s airflow based on heat and moisture conditions. Once again, an optional night-time hybrid adapter can be added, and I’d highly recommend snagging one to make the most of this product. After all, having your fan operate at night means twice as much cooling power for only a fraction of the additional cost.

Features

  • Night-time hybrid adapter (sold separately)
  • Smart thermostat
  • Ventilation: 2000 SQ.FT
  • Brushless motor
  • Hail and weather-resistant

Specifications

  • 25-Watt
  • Dimensions: 22” x 22” x 11”

6. GBGS Solar Attic Fan 20 Watt

This heavy-duty solar-powered attic fan from GBGS is a great wireless solution for industrial or home setups. A smart thermostat monitors temperature and changes the fan’s rotation settings on the fly to prevent energy wastage. At the same time, the solar panel itself comes with four different tilt angles, all so that you can make the most out of the sunshine your home gets.

Features

  • Smart thermostat
  • Waterproof motor
  • Ventilation: 2000 SQ.FT
  • Brushless DC motor
  • Adjustable angle of solar panel

Specifications

  • 20-Watt
  • Dimensions: 23.6” x 23.6” x 9.8”

7. QuietCool Roof Mounted 40 Watt Solar Powered Attic Fan

You don’t have to focus purely on attic and roof spaces with natural light solar attic fans, as wall surfaces and roofs also receive a vast amount of sunshine in the right conditions. The QuietCool 40-Watt capitalizes on this idea, with both roof and gable options available to match any home’s needs. A night-time inverter and energy-efficient motor make this a very attractive multi-purpose choice.

Features

  • Gable and roof options
  • Energy-efficient motor
  • Night-time inverter for 24/7 runtime
  • Easy installation

Specifications

  • 40-Watt
  • Dimensions: 25.6” x 25.4” x 12.9”

8. Broan 355SOBR Mount 20 Watt Solar Powered Attic Ventilator

The Broan 355SOBR solar fan is unique in its construction, with a brown colorway and bevelled edge designed to blend into roof tiles. As such, it’s quite a niche purchase but definitely what you’re after if you want something that seamlessly matches a specific style of a rooftop. It’s perfectly designed to sit up there, too, with bird and rodent screens to prevent pest damage and a hurricane protection guarantee for winds of up to 140 mph.

Features

  • Quiet motor
  • Bird and rodent screen
  • Hurricane rated to 140 mph
  • 12-inch aluminum five-blade fan pitched for maximum airflow

Specifications

  • 20-Watt
  • Dimensions: 20” x 15” X 7” (estimate)

9. Amtrak Solar Powerful 50 Watt Solar Attic Fan

The Amtrak Solar Powerful 50-watt is an industrial-style fan with a lot of versatility and no unnecessary frills. With an average diameter of 14”, the fan blades themselves aren’t too big at all, meaning the kit can easily be installed in an RV, garage, or attic setting. Fifteen feet of extra wire comes included for an easy setup, and if you’re dead set on a solar attic fan with a thermostat, then you need only request a free thermostat from Amtrak to complete the kit.

Features

  • 15 feet of extra wire included 
  • Quiet fan blades
  • Thermal-protected motor

Specifications

  • 50-Watt
  • Dimensions: 22” x 22” x 6”

10. Remington Solar Attic Fan 20 Watt

A variation on Remington’s 25-Watt solar attic fan, this 20-Watt option covers a slightly smaller ventilation space of 1800 square feet. The fan in this version runs on a brushless motor, meaning the motor suffers less wear throughout its lifetime, extending the overall durability of the product. With a 15-year warranty, you can rest assured that this fan will last you a decade or more without the need for any significant maintenance.

Features

  • Night-time inverter (sold separately) 
  • Built-in thermostat and humidistat
  • Ventilation: 1800 SQ.FT

Specifications

  • 20-Watt
  • Dimensions: 22” x 22” x 11”

11. ECO-WORTHY Ventilator 25 Watt

The Eco-Worthy ventilator solar attic fan is a very large piece of kit and with good reason. The dual-panel design allows for a turbocharged fan to ventilate up to 4000 square feet of space – twice as much as any other fan on this list. Even better, the fan has a low energy consumption of just 4 volts, meaning only a small amount of light is required to trigger the 25-Watt output. Though it may look rough around the edges, this is actually one of the best solar attic fans going in terms of pure power.

Features

  • Large, powerful fan
  • Low energy consumption
  • Ventilation: 4000 SQ.FT

Specifications

  • 25-Watt
  • Dimensions: 27.8” x 13.8” x 1.5″

12. Broan-NuTone 345SOWW 28 Watt

Another design-focused fan from Broan-NuTone, the 345SOWW sports a stylish, slimline silhouette despite its functional name. An efficient 5-blade fan sits neatly inside the low-profile housing box, while galvanized steel brackets are used to fix the kit to the roof of your house. These are included in the package and make this weather-resistant fan a breeze to install on any rooftop.

Features

  • Efficient 5-blade fan
  • Weather-resistant
  • Galvanized steel brackets
  • Pest & Weather resistant

Specifications

  • 28-Watt
  • Dimensions: 26.5” x 29.9” x 7.75” 

13. ECO-WORTHY Solar Attic Fan

This little piece of kit from Eco-Worthy is a small but mighty solar fan ideal for sheds and RVs. It has a very small ultra-quiet fan that requires only a tiny amount of sunlight to run. It doesn’t have the most powerful motor in the world. Still, by combining several of these solar fans together in one setup, you can achieve an ultra-efficient, ultra-quiet cooling system, and all at a very reasonable price.

Features

  • Suited to sheds and RVs
  • Stainless steel
  • Ventilation: 600 SQ.FT
  • Easy installation

Specifications

  • Low-Wattage
  • Dimensions: 10.8” x 10.4” x 5.7”
Sebastian Arciszewski

Sebastian Arciszewski

I'm super excited about the continuing electrification of our infrastructure, much of which is being powered by massive solar installations. Additionally, more and more companies are incorporating the power of solar panels into their proucts. I also write about Electric Bikes and Minimalist Design Products. You can find me on twitter: sebastian_a