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Keeping your plants cool and thriving during the hot months is essential—and that’s where solar fans for greenhouse play a vital role. Whether you have a small backyard greenhouse or a larger setup, proper ventilation is key to maintaining optimal temperature and humidity levels.
Solar power fans for greenhouse use renewable energy to circulate air, reduce heat buildup, and protect your plants—all without raising your electricity bill. To help you make the right choice, we’ve reviewed and compared the 7 best solar fans for greenhouse use in 2025.
We looked at features like airflow (CFM), solar panel wattage, build quality, ease of installation, and overall value for money. So if you’re looking for an eco-friendly, cost-effective way to ventilate your greenhouse, you’re in the right place.
Why Use a Solar Fan in Your Greenhouse?
Using solar fans for greenhouse is one of the smartest ways to maintain a healthy growing environment without raising your electricity bill. These fans harness sunlight to power ventilation, making them cost-effective and eco-friendly—ideal for sustainable gardening.
A solar-powered ventilation system boosts air circulation, helping regulate temperature and humidity levels. This keeps your plants cooler during hot months, reduces mold and mildew, and supports stronger, healthier growth all year round.
If your greenhouse is in a remote or off-grid location, solar fans for greenhouse are a game changer. No wiring or grid connection needed—just mount the panel, place the fan, and let the sun work. These fans are also perfect in other setups like pet shelters or as a solar fan for doghouse use.
Quick Comparison of the 7 Best Solar Fans for Greenhouse
Brand | Top Features | Best For | Price |
Erifyng |
| Budget Option | |
Blessny |
| High Airflow | |
SHENVITASO |
| IP67 Waterproof and Rustproof | |
FUTRPOW |
| Easy Installation | |
ECO-WORTHY |
| Very High Airflow | |
DC HOUSE |
| 12000mAh Lithium Battery Backup | |
AEQ |
| Runs Day & Night |
Detailed Review of the 7 Best Solar Fans for Greenhouse
1. Erifyng Solar Powered Fan
If you’re looking for one of the most reliable solar fans for greenhouse, this Erifyng model is a top pick. With 400 CFM airflow and 3200 RPM speed, it keeps your space cool and fresh using only sunlight. It’s perfect for greenhouses, sheds, chicken coops, or RVs—just install it and let the sun handle the airflow.
This versatile solar exhaust fan comes with IPX7 waterproof dual fans and a monocrystalline solar panel that delivers strong performance even in weak sunlight. Whether you need intake or exhaust, the flexible mounting system makes it easy to customize for any greenhouse setup.
Packed with a 13-ft cable with on/off switch, metal safety grills, and complete installation hardware, this solar powered fan is ideal for eco-conscious growers. It’s one of the best solar power fans for greenhouse ventilation in 2025.
Key Features
- Airflow: 400 CFM
- Speed: 3200 RPM
- Noise Level: 40 dB
- Solar Panel Wattage: 25W
- Waterproof Rating: IPX7
- Solar Panel Type: Monocrystalline
- Cable Length: 13 ft with On/Off switch
- Mounting Options: Roof, wall, tent
- Usage: Greenhouse, chicken coop, shed, RV, car, camping
Pros
- 400 CFM airflow, 3200 RPM speed
- IPX7 waterproof design
- Quick setup with full kit
Cons
- No operation at night
- Not ideal for large spaces
2. Blessny 25W Solar 4 Fan Kit
If you’re looking for powerful and reliable solar fans for greenhouse, this Blessny 25W 4-fan kit is a fantastic pick. With a 480 CFM airflow and up to 3000 RPM speed, it easily handles ventilation in coops, sheds, and small greenhouses—no electricity needed.
This solar powered fan kit features a 25W monocrystalline panel, IP65 waterproof rating, and a long 16.4 ft cord for flexible setup. Even better, it includes 4 compact fans for better air circulation in different spots.
Perfect for off-grid cooling, this solar power fan for greenhouse is quiet, efficient, and built to last over 10,000 hours. If you want fresh airflow without high energy bills, this is a smart, eco-friendly solution.
Key Features
- Solar Panel: 25W
- Fan Size: 4 x 4.7-inch fans
- Max Airflow: 480 CFM
- Speed: 3000 RPM
- Cord Length: 16.4 ft
- Waterproof Rating: IP65
- On/Off Switch: Yes
- Lifespan: 10,000+ hours
- Usage: Greenhouse, chicken coop, shed, dog house, RV, attic
Pros
- Strong 480 CFM airflow with 4 fans
- Long 16.4 ft cord for easy setup
- Weatherproof with IP65 rating
Cons
- No battery for night use
- May slow down in cloudy weather
3. SHENVITASO Solar Exhaust Fan With 25W Solar Panel
Looking for powerful yet quiet solar fans for greenhouse use? The SHENVITASO 8″ fan delivers 430 CFM airflow at 2300 RPM, making it ideal for cooling greenhouses, chicken coops, and more. It runs at just 36 dB, so your plants or pets won’t be disturbed.
Unlike many others, this solar powered fan works day and night thanks to its included power adapter. The anti-backflow valve keeps bugs and critters out when the fan is off, and the 16.4 ft cord allows flexible roof placement.
Built tough with IP67 waterproofing and rustproof aluminum, this fan handles harsh weather with ease. Whether you’re using it in your shed, RV, or as a solar camping fan, it’s a smart and sustainable choice for fresh air anywhere.
Key Features
- Output: 25W
- Fan Size: 8-inch
- Airflow: 430 CFM
- Speed: 2300 RPM
- Noise Level: 36 dB
- Cord Length: 16.4 ft + 4.66 ft adapter cable
- Waterproof Rating: IP67
- Extra Feature: Anti-backflow valve
- Usage: Greenhouse, chicken coop, shed, RV, attic, camping, dog house
Pros
- High airflow with low noise
- Works day and night with adapter
- IP67 waterproof and rustproof
Cons
- Requires hole drilling for install
- Not ideal for very large spaces
4. FUTRPOW Solar Fan With 25W Solar Panel
If you’re searching for powerful yet flexible solar fans for greenhouse, the FUTRPOW 8″ fan is a smart pick. It delivers 430 CFM airflow at 2600 RPM with just 36 dB noise, keeping your space cool and quiet. The included power adapter ensures it works even at night or during cloudy weather.
Built for all-weather use, this solar powered fan features a 25W panel, IP65 waterproof rating, and a sturdy aluminum frame. The adjustable bracket lets you angle the panel for maximum sun exposure, perfect for any setup.
This efficient solar attic fan also comes with a protective net and automatic shrink valve to block rain and pests. Whether you’re cooling a shed, RV, or looking for solar power fans for greenhouse, this fan is a reliable, low-maintenance solution.
Key Features
- Output: 25W
- Fan Size: 8-inch
- Airflow: 430 CFM
- Speed: 2600 RPM
- Noise Level: 36 dB
- Cord Length: 13 ft
- Waterproof Rating: IP65
- Extra Features: Power adapter, shrink valve, safety net
- Usage: Greenhouse, shed, chicken coop, attic, RV, basement, camping
Pros
- High airflow with quiet operation
- Works at night with power adapter
- Weatherproof and easy to install
Cons
- Doesn’t store power
- Needs full sunlight for best performance
5. ECO-WORTHY 25W Solar Powered Attic Ventilator
If you need high airflow solar fans for greenhouse, the ECO-WORTHY 25W fan is a powerful choice. With an impressive 1200 CFM output, it keeps small greenhouses, sheds, and coops cool and well-ventilated using only sunlight.
This solar powered fan comes with a 30W foldable solar panel and a 12.6-inch exhaust fan, making it both compact and easy to install. Its plug-and-play design and IP7 waterproof rating make it perfect for outdoor use.
Built with a durable copper motor and metal housing, this solar power fan for greenhouse is designed to last over five years. If you’re after strong airflow, easy setup, and zero electricity costs, this is a solid, eco-friendly pick.
Key Features
- Output: 30W
- Fan Size: 12.6-inch
- Airflow: 1200 CFM
- Noise Level: 70 dB
- Waterproof Rating: IP67
- Solar Panel: Foldable, aluminum frame
- Motor: Pure copper, 5+ years lifespan
- Installation: Plug-and-play, one-piece housing
- Usage: Greenhouse, attic, chicken coop, shed, RV, pet house
Pros
- Strong 1200 CFM airflow
- Foldable panel for easy setup
- Weatherproof and durable build
Cons
- No battery, daytime use only
- Slightly louder at 70 dB
6. DC HOUSE 25W Solar Powered Exhaust Fan Kit
Looking for dependable solar fans for greenhouse use that work even without sunlight? The DC HOUSE 25W exhaust fan stands out with its 12,000mAh lithium battery, offering up to 12 hours of runtime on a full charge—perfect for night or cloudy days.
With 2600 RPM speed and 180 CFM airflow, it ensures solid ventilation in greenhouses, chicken coops, sheds, or attics. This solar powered fan also runs on smart cycles to save energy while keeping air fresh around the clock.
Built tough with an IP54 waterproof rating, this solar power fan for greenhouse is easy to install and designed for long-term performance in all weather conditions.
Key Features
- Output: 25W
- Battery: 12,000mAh lithium
- Airflow: 180 CFM
- Speed: 2600 RPM
- Cord Length: 10 ft
- Waterproof Rating: IP54
- Operation Mode: Smart day/night cycling
- Usage: Greenhouse, attic, chicken coop, shed, dog house
Pros
- Runs at night with built-in battery
- Energy-saving smart cycle mode
- Weatherproof and easy to install
Cons
- Lower airflow than other models
- Slightly short cord length (3.28 ft panel cable)
7. AEQ Solar Powered Fan with Battery
If you’re looking for reliable solar fans for greenhouse that run day and night, the AEQ 22W solar fan is a solid pick. It features a 9.8-inch fan and a 12,000mAh battery, ensuring airflow continues even after the sun goes down.
This solar powered fan runs quietly at just 35 dB and is built with IP65 waterproof protection, making it perfect for outdoor use in sheds, coops, and greenhouses. The 16.4 ft cord offers flexible mounting and setup.
Whether you need intake or exhaust, this fan provides great airflow and keeps your greenhouse environment cool and fresh. It’s a smart, low-maintenance solution for anyone needing solar power fans for greenhouse ventilation.
Key Features
- Output: 22W
- Fan Size: 9.8-inch
- Battery: 12,000mAh
- Cord Length: 16.4 ft
- Noise Level: 35 dB
- Waterproof Rating: IP65
- Material: ABS + metal
- Usage: Greenhouse, shed, chicken coop, pet house, attic, barn
Pros
- Runs at night with large battery
- Quiet operation at 35 dB
- Easy to install with long cord
Cons
- Single fan setup
- Limited airflow details provided
Conclusions
We’ve reviewed the 7 best solar fans for greenhouse setups to help you find the right fit for your needs. Whether you’re focused on airflow, battery backup, or simple setup, there’s an option here for everyone.
Erifyng is a great budget-friendly pick, while Blessny and ECO-WORTHY stand out for their high airflow and easy installation. For those needing reliable performance day and night, DC HOUSE and AEQ offer excellent battery backup solutions.
No matter which you choose, all these solar fans for greenhouse provide eco-friendly, low-maintenance ventilation to keep your plants healthy and your greenhouse cool
FAQs: Solar Fans for Greenhouse
Do solar fans work on cloudy days?
Yes, but their performance may be reduced. On cloudy days, solar fans typically run at lower speeds due to less sunlight reaching the panel.
Can I run a solar fan at night?
Only if the solar fan comes with a built-in battery or power adapter. Standard solar fans without storage will not operate after sunset.
How long do solar fans last?
Most quality solar fans last between 5 to 10 years, depending on the build materials and exposure to outdoor elements.
Are solar fans enough for large greenhouses?
One fan may not be sufficient for large greenhouses. You may need multiple units or a higher-capacity system for effective ventilation.
Are solar fans hard to install?
No, most solar fans for greenhouse setups are designed for easy DIY installation. They usually come with mounting brackets, screws, and clear instructions—no electrical wiring needed.