Solar Greenhouse Fan

377 in stock

44 reviews

Solar Greenhouse Fan

🌞 Solar-Powered Convenience: Our exhaust fan uses solar energy with a USB regulator for on-the-go outdoor use.

🌐 High Efficiency: Single crystal solar cells boast 20% conversion efficiency, turning sunlight into electricity effortlessly.

💧 Waterproof Design: With an IP65 waterproof surface, our solar panel endures tough outdoor conditions for enhanced durability.

🌬️ Odor Elimination: Portable fan effectively maintains clean indoor air, eliminating pet, tobacco, and other odors.

🌍 Versatile Use: Ideal for kitchens, solar greenhouse fan, solar pet and chicken house fans, treehouses, RVs – ensuring comfort everywhere.


Solar Cell: Monocrystalline Silicon
Solar Panel Power: 10W
Solar Panel Working Voltage: 12V
Solar Panel Size: 270 x 15 x 3mm
Output Port: Female DC
DC Cable Length: 100cm
Fan Power: 3W per unit (x2)
Fan Size: 12 x 12 x 2.5cm
Fan Air Volume: 152.6 CFM
Fan Speed: 2200 RPM ±10%
Static Pressure: 2.7mmH2O

Package Contents

Solar panel x1
Exhaust fan x2

377 in stock


44 reviews for Solar Greenhouse Fan

  1. j***a

    Overall, pleased with the set’s quality. While instructions were not included, the installation is straightforward, allowing easy customization. Made a few adjustments for a more secure fit.

  2. А***к

    The fan appears well-crafted with quality materials, tight tolerances, and relatively quiet operation. It performs effectively within its design limits.

  3. C***z

    Everything is functioning well, but time will tell about its waterproof capabilities, especially with the misters in our greenhouse.

  4. 2***r

    It’s great. Forced air circulation in the basement for free. There must be good sunshine

  5. D***o

    Set up in the attic a week ago, noticeable temperature difference. Can walk by the attic door without feeling intense heat.

  6. F***s

    Installed in the attic gable a month ago, noticeable temperature drop by the end of the day. Fan speed varies with sunlight, placement is crucial. Added separate brackets for stability.

  7. X***e

    Works well for the greenhouse, but note that it doesn’t come with a housing/flange as pictured. Some assembly required.

  8. a***a

    work perfectly

  9. l***o

    Impressed with the modification – added a temperature switch for smart operation. The fan is powerful yet surprisingly quiet, possibly extending its lifespan.

  10. V***c

    Mounted inside an outdoor-stored boat under a reflective tarp. Vital for preventing mold and mildew; works well so far.

  11. S***n

    No need to manually control the greenhouse fan; the solar control system seamlessly shuts it off when the sun’s direct exposure diminishes.

  12. H***a

    Great fans for a little greenhouse. The panel is thin, easy to install. The only annoying thing is that there are no back panels on the fans. Received without any damages. Highly recommend the seller and the item!

  13. S***e

    Twin fan, works perfectly, even on a cloudy day

  14. M***z

    Fast shipping. Works well and cools well.

  15. Customer

    Very satisfied with its performance in our small backyard greenhouse – it gets the job done!

  16. r***a

    We installed this in our greenhouse, effectively managing humidity. We haven’t tested it for summer heat yet.

  17. D***s

    Looks very good

  18. V***o

    Works well.

  19. N***d

    bit expensive for quality but works perfect !

  20. E***s

    Very good

  21. Customer

    It is working quite good.

  22. j***m


  23. C***a

    This unit works straight out of the box as intended. Installed it on a 40′ shipping container within minutes. No instructions needed; the versatile mounting options allow for customization.

  24. r***r

    Works really well. Both fans are able to connect. The power from the solar panel is about 6v, the fans just needs about 5.5v to power on. So the more sun, the faster the fan will spin. So far so good!

  25. Jacob Mitchell

    This solar fan has been a lifesaver for our greenhouse, keeping the air fresh and the plants happy.

  26. Olivia Gonzalez

    I was amazed at how efficiently it converts sunlight into power, it runs all day without a hitch.

  27. Noah Hernandez

    The waterproof feature is perfect for our unpredictable weather, never have to worry about damage.

  28. Emma Martinez

    It’s surprisingly powerful for such a compact fan, does an excellent job at eliminating odors in the RV.

  29. Ava Robinson

    The USB regulator is a fantastic addition, making it versatile for all sorts of outdoor activities.

  30. Liam Clark

    Installed it in our chicken coop, and it’s made a significant difference in air quality and temperature.

  31. Mia Lewis

    It’s great for small spaces where air circulation is needed but power options are limited.

  32. William Walker

    Very easy to set up and it started working immediately, really helps with the kitchen odors.

  33. Sophia Allen

    The solar panel is quite effective even on cloudy days, which was a pleasant surprise.

  34. Isabella Young

    We use it in our treehouse, and it keeps the air fresh all day long, making it a perfect retreat for the kids.

  35. Elijah Johnson

    The fan’s efficiency at eliminating tobacco smoke has made our living spaces much more pleasant.

  36. Charlotte Thomas

    I appreciate how it’s designed to withstand tough conditions, making it reliable year-round.

  37. James White

    It’s lightweight, portable, and very effective, exactly what we needed for our mobile home.

  38. Amelia Moore

    The conversion efficiency is impressive, it’s been a cost-effective solution for our off-grid cabin.

  39. Benjamin Martin

    I didn’t expect it to be so robust, but it’s stood up to heavy use in our outdoor kitchen without any issues.

  40. Lucas Thompson

    It starts up quickly each morning and maintains a consistent flow of air, very reliable.

  41. Mason Garcia

    A must-have for anyone needing to manage air quality in a pet-filled home, really handles odors well.

  42. Oliver Martinez

    Not only does it work well in the greenhouse, but I’ve also found it useful for airing out the garage.

  43. Harper Lee

    It’s been a game changer for our solar home project, contributing to our eco-friendly living goals.

  44. Evelyn Davis

    The waterproof and durable design means I can use it almost anywhere without worry.

Add a review

Your email address will not be published. Required fields are marked *

Table of Contents

How a Solar Greenhouse Fan Can Optimize Your Garden

Looking to optimize your greenhouse with sustainable energy? A solar greenhouse fan provides ventilation that’s essential for plant health, leveraging solar power to cut costs and reduce reliance on the grid. In this comprehensive guide, you’ll discover how these solar greenhouse fans work, what to consider before installation, and how to get the most out of your setup, including maintenance and product choices without overwhelming you with unnecessary details.

Harnessing the Sun: The Mechanics of Solar Greenhouse Fans

The beauty of solar-powered fans lies in their simplicity and efficiency. Solar panels attached to the fans convert sunlight into electricity, powering the fans and eliminating the need for external electricity sources.

One such example is the Ventamatic solar-powered greenhouse exhaust fan, which uses a silicone-crystal solar panel to gather solar energy during the day, powering a heavy-duty galvanized steel exhaust fan.

The Solar Connection

The efficiency of solar panels is striking, as illustrated by the MONT Solar-Powered Ventilation System. This system generates double the power necessary, showcasing its ability to produce enough energy for greenhouse fans.

Grid dependency and operational expenses can be significantly reduced by using a 100-watt solar panel to power a greenhouse exhaust fan, which serves as a practical example of solar energy’s efficiency in supplying necessary electricity.

Air Movement Mastery

Ensuring proper air circulation within a greenhouse is of utmost importance. It regulates temperature, dissipates excess humidity, and prevents stagnant air, which can encourage diseases and pests. Strategically positioning fans ensures even air distribution, reducing humidity stratification, and preventing hot spots.

Moreover, fans should generate both upward and downward airflow for exchanging fresh air and expelling stale air, creating a continuous air exchange.

Energy Efficiency and Savings

Energy savings stand out as a key benefit of solar-powered greenhouse fans. These fans offer the following advantages:

  • Eliminate the need for manual temperature adjustments
  • Provide independence from the electrical grid
  • No additional energy costs after installation
  • Cost-effective alternative to traditional electric attic fans

The Ideal Solar Fan Setup for Your Greenhouse

You need to plan meticulously when setting up a solar fan system for your greenhouse. It is vital to evaluate the optimal location for solar panel installation. This ensures the solar greenhouse fan operates efficiently, without sacrificing the light necessary for plant growth.

To avoid unwanted shading that can negatively affect plant growth, solar panels can be installed on the home’s roof or a ground-mounted system instead of on the greenhouse itself.

Sizing It Right: Cubic Feet and Fan Capacity

Some calculation is required to determine the appropriate exhaust fan size for a solar greenhouse. One method involves using the formula W x L x H x 0.85, where W is the width, L is the length, and H is the height of the greenhouse in feet.

A minimum ventilation rate of one complete air change per minute is generally recommended for solar greenhouses to effectively control temperature during warmer seasons.

Kit Includes: What Comes With Your Solar Fan Purchase?

A solar greenhouse fan kit typically includes:

  • Solar panel
  • Fan
  • Fan cover
  • Mounting hardware
  • Voltage sensor for the battery
  • Other components

These kits are designed for dual operation, capable of running directly on solar power or on AC voltage through a wall plug-in adapter.

Additional Fans: When One Isn’t Enough

In some situations, a single fan may not be enough to provide adequate ventilation. This is the case when a single fan cannot provide one volume air exchange per minute, the recommended rate for summer ventilation in a greenhouse.

For larger greenhouses, particularly those longer than 150 feet, multiple fans are recommended to ensure adequate ventilation.

Temperature Control: Keeping Your Greenhouse Cool with Solar Power

Solar-powered forced ventilation systems are designed to maintain an optimal temperature within your greenhouse by achieving high ventilation rates. With the help of an Iterative Dynamic Programming (IDP) scheme, ventilation strategies can be tailored according to the real-time meteorological conditions impacting the greenhouse environment.

The Heat Is On: Managing Hot Days

Managing greenhouse temperatures on hot days can be a challenge. During peak sunlight hours, solar greenhouse fans can prevent indoor temperatures from rising too high above the outside air temperature due to solar radiation. In extremely hot environments, integrating solar greenhouse fans with additional options like misting systems or solar swamp coolers may be necessary.

Automated Control Systems

Several benefits come with automated control systems for solar greenhouse fans. They can maintain specific temperature conditions within the greenhouse, and some kits include the necessary equipment for automation, such as fans, shutters, and thermostats.

Advanced automated systems may even predict internal conditions and manage ventilation in a cost-effective manner.

Ventilation Throughout the Seasons

Your greenhouse ventilation strategy should adapt with the changing seasons. Greenhouse ventilation rates may need to be scalable, adjusting to seasonal changes or specific crop requirements.

In winter, the ventilation requirement of a greenhouse is 20 to 30 percent of what is typically needed in summer. During spring and fall, monitoring both temperature and sunlight intensity is crucial due to weather variability.

Summer Strategy: Solar Fans to Beat the Heat

The summer heat can be daunting, but with the right strategy, your greenhouse can stay cool. To prevent overheating, solar fans should maintain a constant horizontal air pattern within the greenhouse, ensuring temperature uniformity. Fans should also be positioned to move air directly through the crop canopy and across the soil surface to avoid excessive temperature buildups around the plants.

Winter Woes: Humidity and Heat Conservation

Winter brings with it unique challenges, including humidity control and heat conservation. A solar-powered ceiling fan can provide the air movement needed to control humidity during winter months. The fan system should be sized to provide a quarter volume air exchange per minute to maintain adequate ventilation without excessive heat loss.

Transitioning Through Spring and Fall

The transitional periods of spring and fall require careful attention. The varying weather conditions during these times necessitate a ventilating fan system with multiple fans for adaptive temperature and humidity control. If a greenhouse has sections partitioned for different uses or microclimates, separate fans may be necessary to maintain these unique conditions.

Reviewing the Top Solar Greenhouse Fans on the Market

With numerous solar greenhouse fans on the market, it can be a challenging task to select the right one. Some of the top-rated models include the blessny Solar Dual Fan Kit, SmterCon fan, and Rossesay kit, each with varying solar panel wattages and fan specifications.

These models also boast features like waterproofing and outdoor durability, enhancing their longevity in various weather conditions.

Shop Smart: What to Look for in a Quality Solar Fan

Consider several key features when shopping for a solar fan:

  • Wattage of the solar panel
  • Fan’s RPM rate
  • Maximum airflow (CFM) ratings, which ensure effective air circulation and sufficient greenhouse ventilation
  • Waterproofing, which ensures that the solar fan can withstand harsh weather conditions, making it suitable for outdoor use.

Cost vs. Performance: Finding the Best Value

Balancing cost and performance to find the best value in solar greenhouse fans is crucial. Solar-powered greenhouse fans often provide additional benefits by producing excess power, which can be utilized for other greenhouse accessories like lighting and heating systems. The size of the fan and the choice between a single or dual fan setup also influence both the price and the performance, with larger or multiple fans potentially offering heightened air circulation at a different cost structure.

Installing Your Solar Greenhouse Fan: A Step-by-Step Guide

There are several key steps involved in installing a solar greenhouse fan. First, select a site for the solar thermostatic ventilator that is exposed to direct sunlight and avoid shaded, low, or concave areas that can accumulate rainwater. Then, measure and cut a section from the polycarbonate using a Utility Knife to fit the ventilator.

Unpacking Your Kit: Getting Started

The first step in installing your solar fan is to unpack your kit. Inventory the contents of the solar fan package to ensure all parts are present before beginning installation.

Familiarize yourself with the components of the solar module to understand their function during the assembly and installation process.

Mounting and Positioning

Mounting and positioning your solar greenhouse fan is a critical step in the installation process. First, insert one end of the solar thermostatic ventilator into the pre-cut space and push it through for a secure fit.

Next, drill holes into the support beams and align them with the ventilator holes for stability.

Final Checks Before Running

Before finally running your solar greenhouse fan, conduct some final checks to ensure proper operation. Here are the steps to follow:

  1. Verify that all wiring is reliable and that the ventilator is properly assembled.
  2. Confirm that the fan and exhaust shutters are securely mounted.
  3. Check for any structural compromises in the greenhouse.

By following these steps, you can ensure that your solar greenhouse fan is ready to run efficiently.

Maximizing Efficiency: Tips and Tricks for Solar Fan Maintenance

You can ensure maximum efficiency of your solar greenhouse fan through proper maintenance. Establish a routine inspection schedule to identify and prevent any problems by regularly checking for signs of wear or damage.

Regularly cleaning the solar panel with a damp towel helps maintain optimal power generation.

Routine Cleaning and Care

Maintaining the longevity and effectiveness of your solar greenhouse fan system requires routine cleaning and care. Cleaning the solar panel’s surface is a crucial part of regular maintenance.

Regular fan maintenance should include lubricating the pivot and washing the anti-dust net.

Addressing Common Issues

You may face some common issues with your solar greenhouse fan over time. Regular inspection is essential to detect rodent damage to wires and fan blades, which can cause shutdowns and potential fire hazards.

Inspecting the solar fan periodically for debris caught in the fan parts is crucial to prevent decreased functionality or mechanical failure.

Upgrades and Enhancements

As time passes, you might want to upgrade or enhance your solar greenhouse fan to boost its performance. Retrofitting existing fan systems with multi-speed options can optimize ventilation rates to the greenhouse’s thermal load and reduce operating costs.

Voltage regulators can guard solar fans against voltage fluctuations, especially during seasons with variable sunlight conditions.


From understanding the mechanics of solar greenhouse fans to reviewing top models, installing, and maintaining them, we’ve covered a lot of ground. Solar-powered greenhouse fans are an efficient, cost-effective, and sustainable solution for maintaining an ideal environment in your greenhouse. As we move towards greener solutions, these fans represent a powerful tool in the gardener’s arsenal, helping to optimize plant growth while conserving energy.

Frequently Asked Questions

How do solar greenhouse fans work?

Solar greenhouse fans work by using solar panels to convert sunlight into electricity, which powers the fans, eliminating the need for external electricity sources. This allows for efficient ventilation within the greenhouse and reduces operating costs.

What components are typically included in a solar greenhouse fan kit?

A solar greenhouse fan kit usually includes a solar panel, fan, fan cover, mounting hardware, and a voltage sensor for the battery, along with other components. This provides all the necessary parts for effective ventilation and airflow control in your greenhouse.

How do I maintain my solar greenhouse fan?

To maintain your solar greenhouse fan, it’s essential to regularly inspect and clean it, which involves cleaning the solar panel’s surface and lubricating the fan’s pivot. This will ensure the fan operates efficiently and prolong its lifespan.

What are some common issues with solar greenhouse fans?

Common issues with solar greenhouse fans include rodent damage to wires and fan blades, debris caught in the fan parts, and damage to the solar panel. Be sure to regularly inspect and maintain your fans to prevent these issues.