Best Solar Attic Fan in 2021 (Reviews and Comparison)

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With the devastating effects weather can have on your roof and attic, solar attic fans are a popular choice. To fight the effects of the weather, and to reduce energy costs associated with, A/C attic venting is critical. Solar attic fans are powered by the sun and are easy enough to install and use not just in your home but outdoors as well. 

This article is a review of some of the best solar attic fans on the market.

COMPARISON CHART

IMAGE PRODUCT

ECO-WORTHY 25W Solar Powered Attic Ventilator Gable Roof Vent Fan with 30W Foldable Solar Panel - Solar Fans for Home Attic, Greenhouse, RV or Outdoor, Ready-to-Use Solar Vent Fan, Solar Roof Vent

ECO-WORTHY 25W Solar Powered Attic Ventilator
  • Size: Small
  • Weight: 13.47
  • Wattage: 25
  • Material: Well-made
  • Warranty: Will replace
  • Adjustable:Yes
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iLIVING HYBRID Ready Smart Thermostat Solar Roof Attic Exhaust Fan, 14", 1750 CFM, 2500 Coverage Area, Black

iLiving Hybrid 20-Watt
  • Size: Large
  • Weight: 30
  • Wattage: 20
  • Material: polycrystalline
  • Warranty: 15-year
  • Adjustable:Yes
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20-Watt Solar Attic Fan (Black) with Thermostat / Humidistat (22 x 22 x 11 IN) - Brushless Motor – Hail and Weather Resistant Solar Vent Fan – Solar Powered Attic Fan for Homes - by Remington Solar

Remington Solar Attic Fans
  • Size: Medium
  • Weight: 25
  • Wattage: 30
  • Material: polycrystalline
  • Warranty: 15-year
  • Adjustable:No
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Amtrak Solar Powerful 50-Watt Galvanized Steel New Upgraded 14" Fan Housing, Solar Attic Fan Quietly Cools, Ventilates Exhaust Your House, Garage or RV and Protects Against Moisture Build-up

Amtrak Solar’s
  • Size: Lightweight
  • Weight: 12
  • Wattage: 40
  • Material: Galvanized steel
  • Warranty: 25-year
  • Adjustable:No
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US Sunlight Solar Powered Attic Fan 1010TR

US SUNLIGHT
  • Size: Medium
  • Weight: 24
  • Wattage: 10
  • Material: Heavy-duty
  • Warranty: 20-year
  • Adjustable:No
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ECO-WORTHY 25W Solar Powered Attic Ventilator Gable Roof Vent Fan with 30W Foldable Solar Panel - Solar Fans for Home Attic, Greenhouse, RV or Outdoor, Ready-to-Use Solar Vent Fan, Solar Roof Vent

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ECO-WORTHY 25W Solar Powered Attic Ventilator Gable Roof Vent Fan with 30W Foldable Solar Panel - Solar Fans for Home Attic, Greenhouse, RV or Outdoor, Ready-to-Use Solar Vent Fan, Solar Roof Vent

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ECO-WORTHY 25W Solar Powered Attic Ventilator Gable Roof Vent Fan with 30W Foldable Solar Panel - Solar Fans for Home Attic, Greenhouse, RV or Outdoor, Ready-to-Use Solar Vent Fan, Solar Roof Vent

Specification

SizeSmall
Weight13.47 pounds
Wattage 25-w
MaterialGood/Well-made
WarrantyWill replace if not satisfied
Adjustable Solar PanelYes

Features

  • Efficient
  • Affordable
  • Well-made
  • Easy to install
  • Foldable and Adjustable angle

The Eco-Worthy 25W solar-powered attic ventilator will cut your utility expenses by reducing your cooling costs. It’s well made and runs reasonably quiet. It’s easy to install and good for use in the home, shed, attic, garage or RV. It can be used anywhere outdoors (camping, fishing, doghouses, greenhouse). The fan comes with a pre-installed 8-inch solar cable with a quick connector, and a 16-feet solar cable comes with the solar panel. The solar fan can work at low voltage automatically with a minimum voltage of 4V to operate

WHAT WE LIKE

This is a good buy. The solar-powered attic fan is small and light, and that makes it easy to take with you anywhere. You can install it anywhere indoors and outdoors. It has a motor lifespan of more than 10,000 hours

PROS

  • Comes with a cable cord
  • Cable length can be extended

CONS

  • 100% solar so will not work at night
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iLIVING HYBRID Ready Smart Thermostat Solar Roof Attic Exhaust Fan, 14", 1750 CFM, 2500 Coverage Area, Black

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iLIVING HYBRID Ready Smart Thermostat Solar Roof Attic Exhaust Fan, 14", 1750 CFM, 2500 Coverage Area, Black

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iLIVING HYBRID Ready Smart Thermostat Solar Roof Attic Exhaust Fan, 14", 1750 CFM, 2500 Coverage Area, Black

Specification

SizeLarge
Weight30 pounds
Wattage20-w
MaterialN/A
Warranty15-year warranty
Adjustable Solar PanelYes

Features

  • Smart thermostat control
  • Waterproof brushless motor
  • Ready for add-on features
  • Roof mount

The iLiving Hybrid 20-watt solar-powered fan saves on your utility bill and is equipped with a 20W adjustable polycrystalline solar panel. It has a brushless motor that provides up to 2,000 square feet of capacity cooling. It has a smart thermostat with a range of 65 – 130f.

WHAT WE LIKE

This is a good product, and the brushless motor and add-on features are great product enhancements.

PROS

  • No assembly required

CONS

  • Add-on features sold separately
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20-Watt Solar Attic Fan (Black) with Thermostat / Humidistat (22 x 22 x 11 IN) - Brushless Motor – Hail and Weather Resistant Solar Vent Fan – Solar Powered Attic Fan for Homes - by Remington Solar

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20-Watt Solar Attic Fan (Black) with Thermostat / Humidistat (22 x 22 x 11 IN) - Brushless Motor – Hail and Weather Resistant Solar Vent Fan – Solar Powered Attic Fan for Homes - by Remington Solar

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20-Watt Solar Attic Fan (Black) with Thermostat / Humidistat (22 x 22 x 11 IN) - Brushless Motor – Hail and Weather Resistant Solar Vent Fan – Solar Powered Attic Fan for Homes - by Remington Solar

Specification

SizeMedium
Weight25 pounds
Wattage30-watt
Material polycrystalline
Warranty30-day trial and 15-year warranty
Adjustable Solar PanelNo

Features

  • Reduces energy bill
  • Brushless motor
  • Built-in thermostat
  • Add-ons available to power at night

Remington Solar Attic fan cools your attic and home and saves on the energy bill. It comes with a built-in thermostat, and the brushless motor extends the fan’s life. There’s no wear or friction. It can ventilate 1,800 square feet. This fan is Texas Windstorm certified. Available add-ons allow you to power it off and on at night.

WHAT WE LIKE

The Remington has some good features, including the built-in thermostat and add-ons that allow you to power at night.

PROS

  • Designed for lifetime use
  • 100% satisfaction guarantee
  • 30-day refund

CONS

  • Adapter sold separately
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Amtrak Solar Powerful 50-Watt Galvanized Steel New Upgraded 14" Fan Housing, Solar Attic Fan Quietly Cools, Ventilates Exhaust Your House, Garage or RV and Protects Against Moisture Build-up

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Amtrak Solar Powerful 50-Watt Galvanized Steel New Upgraded 14" Fan Housing, Solar Attic Fan Quietly Cools, Ventilates Exhaust Your House, Garage or RV and Protects Against Moisture Build-up

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Amtrak Solar Powerful 50-Watt Galvanized Steel New Upgraded 14" Fan Housing, Solar Attic Fan Quietly Cools, Ventilates Exhaust Your House, Garage or RV and Protects Against Moisture Build-up

Specification

SizeLightweight
Weight12 pounds
Wattage40-watt
MaterialGalvanized Steel
Warranty25-year warranty
Adjustable Solar PanelNo

Features

  • Easy to install
  • Multiple applications
  • Comes with 4 brackets to mount
  • 25 ft of wire included

Amtrak Solar fan comes with a 40-watt high-quality crystalline solar panel. It can be installed anywhere in the attic. No tools, permit, or inspections are needed. It’s easy to install with no need for an electrician. The fan turns on as soon as the sun hits it and runs all day for all-day coolness and circulation. 

WHAT WE LIKE

This is a good product with a new upgraded 14-inch fan. This is a larger fan blade than previous models. It can be installed anywhere and is lightweight that’s easy to install.

PROS

  • Can be used for numerous applications
  • Upgraded
  • Lightweight

CONS

  • Have to request the free thermostat
  • Not adjustable
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US Sunlight Solar Powered Attic Fan 1010TR

Specification

SizeMedium
Weight24 pounds
Wattage10-w
MaterialHeavy-duty construction
Warranty20-year warranty
Adjustable Solar PanelNo

Features

  • Ventilates up to 1350 square feet
  • Heavy duty
  • Commercial-grade solar panel
  • Lowers energy bill
  • Tax credit incentive
  • Comes with a roof mount

The US Sunlight solar fan is commercial grade with heavy-duty construction. It can circulate up to 1,350 square feet. It’s heavy-duty and comes with a roof mount. 

WHAT WE LIKE

US Sunlight is a professional series roof mount attic designed to provide up to 25% more power than most other fans.

PROS

  • Heavy-duty material
  • Tax credit incentive
  • Ventilates up to 1,350 square feet

CONS

  • Less square foot coverage than other fans when compared

Frequently Asked Questions

What is the average lifespan of a solar-powered attic fan?

When it comes to the average lifespan of a solar-powered attic fan, most solar fans have a warranty that extends to 25 years at the most. However, most of them will last 27 – 30 years. 

How to size a solar attic fan?

When it comes to sizing a solar attic fan, always follow manufacturer recommendations when it comes to sizing a solar attic fan. However, for most of them, the minimum attic size is 1,000 square feet to 2,500 square feet.

Conclusion

Our recommendation for the best solar attic fan is the Eco-Worthy 25W Solar-Powered Attic Ventilator. The Eco-Worthy 25W Solar-Powered Attic Ventilator is a well-made solar fan that runs reasonably quiet, is easy to install and can be used in multiple venues. The fan comes with a pre-installed 8-inch solar cable with a quick connector and a 16-feet solar cable comes with the solar panel. The solar fan can work at low voltage automatically with a minimum voltage of 4V to operate. The fan is efficient, affordable, foldable and is adjustable.

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