6 Best Greenhouse Evaporative Coolers (Buyer’s Guide)

Gardening is an art. As a result, gardening qualifies you as an artist. However, it is not just you who has control over your garden. Numerous factors, such as extreme weather conditions, insects, pests, and seasonal restrictions, can significantly affect your growing space.

However, what comes to rescue your green friends during these extremities and discrepancies is a greenhouse. It acts as a protective sheath for your growing space to outwit the problems in your garden, and helps you extend your growing season.

But some weather conditions might not even suit a greenhouse, and your plants might be in danger. The summer season is one such blackspot for your greenhouse. It can cause overheating problems in your greenhouse, which might be a downfall for your plants.

Hence, you might need to install coolers in your greenhouse to drive the heat away. In addition, evaporative coolers can be the best way out of overheating problems. They come with an adequate cooling capacity that proves most appropriate for a greenhouse.

But, while choosing the best greenhouse evaporative coolers, you might fall into confusion. The choice of an evaporative cooler for your greenhouse depends on many factors, including the additional features you desire.

Hence, to help you pick the most suitable greenhouse cooler for your greenhouse, here we have listed the top greenhouse evaporative coolers with their features and price. So you can look for the features you want in an evaporative cooler for your greenhouse to save your growing space.

Top 6 Greenhouse Evaporative Coolers

Here are the top 6 greenhouse evaporative coolers having the best features to outwit overheating in your greenhouse.

Image Product
Portacool PACJS2301A1 Jetstream 230 Portable Evaporative Cooler
  • It has an exceptional rate of air delivery
  • It has a high cooling capacity
  • It runs at variable speed to provide excellent adjustability
Big Ass Fans Cool-Space 300 Portable Evaporative Cooler
  • It has the thickest cooling media, up to 8 inches
  • It has a vast water storage capacity due to a large water tank
  • It is easy and convenient to use
Hessaire MC61M Evaporative Cooler, 5,300 CFM
  • It has efficient portability, allowing it to cool various spaces
  • For space-saving, it has a small design
  • It requires the least maintenance and operates efficiently
Hessaire MC37M Evaporative Cooler, 3,100 CFM
  • It has a large evaporative surface area for effective cooling
  • It has a convenient water filling system
  • It comes with a powerful speed of three fans
AGILLY 3-in-1 Evaporative Air Cooler
  • It is a multi-purpose cooler and can be used as a fan and humidifier.
  • It comes with a smart and purposeful design to ensure convenience
  • It can accommodate ice packs for enhancing cooling effectiveness
Portable Air Conditioner, Evaporative Air Cooler in 3 Speed
  • It has an energy-efficient power supply system
  • It comes with cotton filters to provide pure air
  • It has a wide scope for additional attachments.

1. Portacool PACJS2301A1 Jetstream 230 Portable Evaporative Cooler

Portacool PACJS2301A1 Jetstream 230 evaporative cooler has numerous reasons for making it to the top of our list of the best greenhouse evaporative coolers. It brings the top-class features of a portable evaporative cooler to cool your greenhouse smartly.

Excellent cooling capacity

Portacool PACJS2301A1 has an excellent cooling capacity of 900 s.f./84 m2. It is mainly due to its oscillating louvres. It uses variable speeds to cool your growing space, thus providing an air delivery of 3,600 CFM/6,116 m3/hr. You can expect a high air velocity of 27 mph/43 kph. Hence, you get an evaporative cooler to tackle the overheating problem easily.

Easy to Maintain

Besides providing top-notch cooling, this evaporative cooler is easy and suitable to maintain. It comes with two-inches large drains that help you clean it with ease. Moreover, it has a liquid level indicator which notifies you regarding the water level so you can fill it in time.

Fit for all Spaces

This versatile evaporative cooler is perfect for all spaces beside your greenhouse. It’s portable because of its lightweight design. Hence, you can use it to cool industrial and automotive shops, which are difficult to cool in the first place.

Pros and Cons of Portacool PACJS2301A1 Jetstream 230 Portable Evaporative Cooler


  • It can cool a large area in a short time.
  • It has a liquid level indicator for your convenience.
  • It is perfect for compact spaces.


  • Noise might be intolerable at higher settings.

2. Big Ass Fans Cool-Space 300 Portable Evaporative Cooler

Big Ass Fans cool-space evaporative cooler is another best evaporative cooler with features fit for heat eradication from your greenhouse. The fact that this evaporative cooler may be used both indoors and outdoors is its best feature.

Ensures Faster Cooling

Big Ass fans cool-space evaporative cooler comes with a large, 8 inches thick cooling media. It provides a faster cooling effect by using an effective cooling mechanism. Hence, you get cooled air up to 33 degrees. It also comes with direct-drive motors, thus allowing variable speed controls and efficient cooling.

High-Capacity Water Tank

This evaporative cooler has a large water tank with an easy filling system. Hence, you can fill it once and rest for long hours without refilling.

Easy to Operate

The best feature of this evaporative cooler is how simple it is to use and maintain. It comes with a drain plug, locking swivel casters, low-water shutoff, and variable temperature controls to ensure utmost convenience for you.

Pros and Cons of Big Ass Fans Cool-Space 300 Portable Evaporative Cooler


  • It has the most effective cooling media
  • It is safe to use and maintain
  • It has robust motors to ensure great power


  • You might face water leakage issues with time

3. Hessaire MC61M Evaporative Cooler, 5,300 CFM

Hessaire MC61M is another evaporative cooler you would love to consider for your greenhouse. It makes the best use of technology to outwit heat during summers.

Effective Cooling Media

This evaporative cooler has the most effective cooling media with 3-sided high-density cooling pads. You have control over the fan speeds and can change them in three ways. Moreover, the oscillating louvres allow the evaporative cooler to cool a large surface area.

Portable Compact Design

This evaporative greenhouse cooler has a portable design with four heavy-duty locking casters. Hence, you can move it to several spaces and enjoy an efficient cooling effect.

Easy Operation

Hessaire MC61M provides you with convenient operation and easy maintenance features. It has three rotary controls, a pump, and an oscillation motor with separate control systems so you can use and maintain it easily.

Pros and Cons of Hessaire MC61M Evaporative Cooler, 5,300 CFM


  • It has an efficient switch control system
  • It has a high air-delivery capacity
  • It has a compact design to allow portability


  • It might be a bit noisy

4. Hessaire MC37M Evaporative Cooler, 3,100 CFM

Hessaire MC37M evaporative cooler also makes it to our list of the best greenhouse evaporative coolers due to its compact yet powerful approach.

Portable Design

This greenhouse evaporative cooler comes with four heavy-duty locking casters and a compact design. These characteristics create a cool atmosphere wherever you want.

Powerful Cooling

This evaporative cooler ensures powerful cooling with oscillating louvres and three fan speeds. It has a cooling capacity of 100 cubic feet per minute with high-density cooling pads to make the best fit for your overheated greenhouse.

Effective Water Filling System

You can cut off maximum manual effort when filling this evaporative water cooler. It has a continuous filling system, making it easy for you to fill it by connecting a household hose.

Pros and Cons of Hessaire MC37M Evaporative Cooler, 3,100 CFM


  • It is highly portable to allow multiple uses
  • It has a continuous fill system to reduce manual work
  • It is simple and convenient to use and maintain


  • It does not provide instant cooling

5. AGILLY 3-in-1 Evaporative Air Cooler

AGILLY 3-in-2 evaporative air cooler is just made to eliminate overheating issues in your greenhouse. It has a modern construction that provides you with utter convenience while operating it for your greenhouse.

Appealing Design

The first and foremost feature to attract to buying it is its appealing design that matches the serenity of your greenhouse. Besides a fashionable look, it hosts a smart approach with a 3-layer evaporative cooling pad and an ice compartment to ensure fast and long-term cooling.

Automatic Approach

The modern design makes most of its features automatic to operate. You can use it from a 20ft distance with its remote-control system. It comes with four pre-programmed modes, three-speed settings and 12 hours timer to cool your growing environment smartly. Moreover, the built-in LED display panel enhances visibility.

Easily Portable and Stored

The compact design with 60 degrees oscillating angle and 360 degrees swivel wheels makes it easy to carry around and store during the off-season. Hence, you can get a cool environment in all spaces, including your greenhouse.

Pros and Cons of AGILLY 3-in-1 Evaporative Air Cooler


  • It has highly customizable and auto-regulated features
  • It comes with an environment-friendly approach
  • It is suitable for storage due to compact design


  • The outdoors are not the right place for it

6. Portable Air Conditioner, Evaporative Air Cooler in 3 Speed

A portable air conditioner evaporative cooler is also a top choice in the best greenhouse evaporative coolers list. Its smart and purposeful design will attract you to install it in your greenhouse.

Ice Pack System

This evaporative cooler promises you top-notch cooling due to an ice pack system. It allows you to put ice cubes on the ice compartment to make the cooling process faster and more effective.

Energy-Saving Approach

The best part about this evaporative cooler is it comes with an energy-saving approach. It has a power supply system and conversion circuit to save maximum energy. Hence, you get the least electric bills and enjoy the versatility of this evaporative cooler simultaneously.

Large-Capacity Water Tank

The portable air conditioner three-speed evaporative cooler also has a large water tank with an efficient filtration system. It makes use of cotton filters to purify the cool air. Moreover, a topwater tank eases the filling process with its large capacity cooling your growing space for hours.

Pros and Cons of Portable Air Conditioner, Evaporative Air Cooler in 3 Speed


  • It ensures low electricity bills
  • It has an ice cooling mechanism for effective and fast cooling
  • It has the least chances of water leakage


  • You might face difficulty in the installation process

Best Greenhouse Evaporative Coolers: Buyer’s Guide

Now that you have the list of the best greenhouse evaporative coolers, you might wonder how we selected them for you in the first place. To find the ideal evaporative cooler for your greenhouse, you must take a few things into account.

  • Size: Size is the first thing you must look for in an evaporative cooler. It depends on the available space and size of your greenhouse. A compact evaporative cooler that allows portability can be your best choice.
  • Ease of operation: The evaporative cooler you select ought to be simple to use and keep up. Hence, you must look for features that ensure the same so you can save much on maintenance costs.
  • Additional features: You can also look for additional features, such as an ice compartment, LED light and remote-control system, or power-saving abilities to make the most out of your greenhouse evaporative cooler.

Best Greenhouse Evaporative Coolers: FAQs

How do evaporative coolers work?

Evaporative coolers use water-saturated pads on low humid air to make it humid by evaporation, thus providing a cooling effect.

Are evaporative coolers suitable for all regions?

Evaporative coolers are not suitable for regions with high humidity.

How do we ensure a long life of evaporative coolers?

The best way to ensure a long life of your evaporative cooler is to employ regular maintenance techniques.

Will evaporative cooler work in greenhouse?

Yes, evaporative cooler provides cooling of 10 to 20°F below the outside temperature in greenhouse.

Do plants use evaporative cooling?

Yes, the process of transpiration is an evaporative cooling system that brings down the temperature in plants. Since this process leads to water loss, it must be accurately regulated.


Overheating is a major greenhouse issue that affects your growing space during summers. Evaporative coolers can be the best solution to drive away heat off your greenhouse and ensure a cool environment. Hence, you can select the best evaporative cooler from our list to keep your greenhouse healthy and flourishing all the time.