7 Amazing Benefits of Greenhouse Evaporative Coolers for Thriving

Plant Growth

Are you tired of your greenhouse overheating and damaging your precious plants? The greenhouse evaporative cooler might be just what you need. This energy-efficient and cost-effective system can help maintain a stable and optimal environment for your plants, leading to better growth and yields.

In this post, we will delve deep into the subject of greenhouse evaporative coolers, covering all the essentials such as how they function, their advantages, key aspects to keep in mind while selecting one, and helpful tips for installation and upkeep.

So, let's dive into the world of greenhouse evaporative coolers and discover how they can improve your growing environment.

greenhouse evaporative cooler

Introduction to Greenhouse Evaporative Coolers

Cultivating plants in a greenhouse provides numerous benefits, including all-year-round growth and protection from harsh weather elements.

Nevertheless, it is crucial to maintain optimal temperature and humidity levels for the best plant growth. This is where greenhouse evaporative coolers play a vital role, offering an affordable and environmentally friendly approach to managing the greenhouse climate.

What is a greenhouse evaporative cooler?

A greenhouse evaporative cooler is a device that uses the natural process of evaporation to cool the air inside a greenhouse. The explanation of evaporative cooling include:

  • It is a natural occurrence in which water takes in heat from the surrounding air and evaporates, resulting in cooler and more humid air.
  •  The process is akin to how our bodies perspire to cool off when we feel overheated.
  • It's harnessed by the greenhouse evaporative cooler to cool down the air inside your greenhouse.

 Components of Greenhouse Evaporative Cooler

The greenhouse evaporative cooler consists of several components:

Water distribution system: Sprays water onto the wetted pad.

Wetted pad: Made of a material that can absorb and hold water.

Fan: Draws hot air from the greenhouse through the wetted pad.

Motor: Powers the fan.

Greenhouse Evaporative Cooler's Operation

The greenhouse evaporative cooler's functioning can be summarized into a few key steps:

  • The fan pulls hot air from the greenhouse through the damp pad.

  • Water molecules in the damp pad take heat from the warm air and evaporate, cooling the air.

  • The fan then circulates the cool, moist air back into the greenhouse, lowering the temperature and creating a better environment for plant growth.

Importance of Temperature and Humidity Control in Greenhouses

Controlling temperature and humidity in a greenhouse is essential for several reasons:

Plant growth: For healthy growth and development, plants require a specific temperature range. They might grow better if the temperature is too hot or too cold.

Disease prevention: As humidity levels increase, mold, mildew, and other diseases can appear, causing damage to crops and possibly causing them to fail.

Pest control: Maintaining stable temperature and humidity conditions can help deter pest infestations since pests often flourish in extreme environments.

Greenhouse evaporative coolers are an outstanding solution for preserving the ideal growing environment, enabling plants to thrive while minimizing energy expenses and environmental impact.

In the upcoming sections, we'll delve further into evaporative cooling principles and discuss its numerous advantages to greenhouse growers.

Top 7 Benefits of Using Greenhouse Evaporative Coolers

Greenhouse evaporative coolers provide several advantages, making them an attractive choice for greenhouse growers. Here are the top seven benefits you can enjoy by using a greenhouse evaporative cooler:

Improved plant growth and health  

The optimal balance of temperature and humidity in evaporative coolers ensures that plants grow healthy and strong. A stable environment promotes better growth, vibrant colors, and higher crop yields.

Energy efficiency and cost savings 

Evaporative coolers consume significantly less energy than traditional air conditioning systems, leading to lower electricity bills and a faster return on investment. This energy efficiency saves money and reduces your greenhouse's carbon footprint. 

Environmentally friendly cooling option 

Unlike conventional air conditioners, evaporative coolers don't rely on harmful refrigerants that can damage the environment. Instead, using water as the primary cooling agent provides an eco-friendly option for greenhouse climate control.

Easy installation and low maintenance 

Installing an evaporative cooler is relatively straightforward and can often be completed without professional assistance. In addition, these systems require minimal maintenance, allowing you to focus more on your plants' care and growth. 

Enhanced air quality and circulation 

Evaporative coolers constantly circulate fresh, filtered air throughout your greenhouse, improving air quality and ensuring plants receive the proper carbon dioxide levels for photosynthesis. In addition, this enhanced air circulation helps prevent the buildup of stale, stagnant air that can lead to plant diseases.

Flexibility for Different Greenhouse Settings 

Whether you own a cozy backyard greenhouse or manage a vast commercial facility, evaporative coolers are available in various sizes and styles to accommodate your requirements. This versatility makes them an outstanding option for diverse greenhouse environments. 

Adaptable to local climate conditions

Greenhouse evaporative coolers can be adjusted to work efficiently in different climates and weather patterns, ensuring consistent performance regardless of external conditions. This adaptability is crucial for maintaining a stable growing environment throughout the year.

Selecting the Right Greenhouse Evaporative Cooler

In this section, we'll explore the factors you need to consider when selecting an evaporative cooler and some popular models and brands to choose from.

Factors to consider when choosing an evaporative cooler

There are several factors to consider when choosing a greenhouse evaporative cooler. The following three factors are highly important to consider.

When selecting the ideal greenhouse evaporative cooler, you'll need to weigh several considerations. Let's delve into the three most critical factors to keep in mind.

Greenhouse size and layout

In addition to greenhouse size and layout, evaporative cooler type and size also affect your needs. For your greenhouse, you must choose the right cooler size. The cooler must be large enough to cool down the entire greenhouse, while too small will waste energy and increase costs.

Assess the overall dimensions of your greenhouse and the placement of plants, as these factors will influence the cooler's capacity and airflow requirements. Choosing the right cooler ensures effective air circulation and uniform cooling throughout your space.

Local climate and weather patterns

Evaporative cooler efficiency depends heavily on local weather and climate conditions. If your area experiences hot, dry weather, you may need a more robust evaporative cooler to cool the air effectively. Conversely, in cooler climates, a smaller, more affordable cooler may suffice.

A good evaporative cooler must be used in hot, dry conditions. Therefore, it's imperative to examine the average temperature and humidity levels in your area. Generally, evaporative coolers are less effective in hot and humid climates, and alternative cooling options may be more appropriate.

Water availability and quality

Since greenhouse evaporative coolers rely on water, having a reliable water source with good quality is crucial. Your cooler needs adequate water and good water quality. Make sure you have both. When water quality is poor, scale can build up and performance is reduced. In such cases, installing a water treatment system can help maintain your cooler's performance and longevity.

Popular greenhouse evaporative cooler models and brands

When selecting a greenhouse evaporative cooler, popular research models and brands to find one that meets your needs and budget. Read reviews from other greenhouse owners and consult with industry professionals to gain valuable insights and recommendations tailored to your specific needs.

Look for units with positive reviews, focusing on energy efficiency, cooling capacity, and ease of maintenance. Some well-known brands that offer greenhouse evaporative coolers include Swampy, Portacool, and Hessaire. Don't hesitate to ask fellow greenhouse growers for recommendations or consult with industry experts to make the best decision.

greenhouse evaporative cooler

Tips for Installing and Operating a Greenhouse Evaporative Cooler

After understanding the benefits and selection process for greenhouse evaporative coolers, it's crucial to ensure proper installation and operation for optimal performance. In this section, we will cover essential tips for installation, maintenance, and troubleshooting.

Proper installation for optimal performance

To achieve the best results from your greenhouse evaporative cooler, follow these guidelines during installation:

  • Choose the right location: Place the cooler in an area with good airflow and easy access to a water supply. Ensure there's adequate space for air circulation and exhaust.
  • Install a ventilation system: A well-designed ventilation system can improve the cooler's performance by removing excess humidity and maintaining a balanced airflow.
  • Seek professional assistance: If you're unsure about the installation process, consult with an expert to ensure the correct setup and prevent future issues.

Routine maintenance and cleaning

Regular maintenance is essential for the longevity and performance of your evaporative cooler. Keep it running smoothly by following these steps:

  • Clean the cooling pads: For effective cooling and mold prevention, regularly clean the cooling pads.
  • Check water levels: Ensure the water reservoir is filled, and the distribution system is functioning correctly.
  • Inspect for leaks: Look for any signs of leaks and address them promptly to avoid wasted water and reduced performance.

Troubleshooting common issues

Should you encounter problems with your evaporative cooler, consider these troubleshooting tips:

  • Reduced cooling: Check the cooling pads for clogs or damage, and examine the water distribution system for blockages.
  • Unusual noises: Inspect the fan and motor for loose or damaged parts, and lubricate if necessary.
  • Water leakage: Verify that connections are secure, and replace any damaged components.

Case Studies: Successful Greenhouse Evaporative Cooler Implementations

In this section, we will explore a real-life example of a successful greenhouse evaporative cooler implementation in the context of a commercial cannabis operation. This case study highlights the benefits and effectiveness of using evaporative coolers in a controlled growing environment.

Commercial Greenhouse Operation: John's Cannabis Cultivation Facility

John Smith, a commercial cannabis grower in Colorado, decided to upgrade his greenhouse climate control system to optimize plant growth and reduce energy consumption. After researching various options, John chose to install an evaporative cooler in his 10,000 square foot facility.

Before the installation of the evaporative cooler, John's greenhouse relied on a traditional air conditioning system that consumed a significant amount of energy and struggled to maintain consistent temperature and humidity levels. This resulted in uneven plant growth, lower yields, and higher operating costs.

After the installation of the evaporative cooler, John noticed several significant improvements in his greenhouse operation:

  • Enhanced plant growth and health: The evaporative cooler consistently maintained optimal temperature and humidity levels, creating a more stable environment for cannabis plants. This led to more uniform growth, higher yields, and improved product quality.
  • Energy efficiency and cost savings: By switching to the evaporative cooler, John reduced his energy consumption by 50% compared to the traditional air conditioning system. This translated to substantial cost savings on electricity bills and a quicker return on investment.
  • Environmentally friendly solution: The evaporative cooler's eco-friendly nature aligned with John's commitment to sustainable growing practices, reducing the operation's carbon footprint and enhancing its green credentials.

John's success story demonstrates the effectiveness of evaporative coolers in commercial greenhouse settings, showcasing their potential to revolutionize controlled growing environments across various industries.

Research and Educational Institutions: State University's Plant Research Greenhouse

State University successfully implemented an evaporative cooler in its 5,000 square foot plant research greenhouse. The new system provided a consistent climate, reduced energy consumption by 40%, and supported sustainable research practices. This demonstrates the value of evaporative cooling systems in research and educational settings.

Small-scale, Hobbyist Greenhouses: Alice's Backyard Greenhouse

Alice, a gardening enthusiast, installed an evaporative cooler in her 500 square foot backyard greenhouse. The cooler provided a stable environment for her plants to thrive, saved energy and costs, and required minimal maintenance. This example shows how small-scale greenhouse owners can benefit from evaporative coolers to achieve better results while reducing costs and environmental impact.


Greenhouse evaporative coolers have proven to be a game-changer for both commercial and hobbyist growers. These systems offer numerous benefits, including improved plant growth and health, energy efficiency, cost savings, and environmental friendliness.

By considering factors such as greenhouse size, local climate, and water availability, growers can select the right evaporative cooler for their needs. As showcased through real-life examples, implementing evaporative coolers can lead to thriving plants and more sustainable practices.

As we look to the future, greenhouse cooling and climate control technology will continue to evolve, offering even more opportunities for growers to maximize efficiency and success.

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