Types of Evaporative Coolers & Best Brands to Know

Evaporative coolers provide excellent air quality. Importantly, they do not need chemical refrigerants and instead rely on water’s inherent cooling capacity. Compared to refrigerant AC systems, evaporative coolers require less maintenance, consume less electricity, and are considerably less prone to spill toxic chemicals.

When purchasing an Evaporative cooler, it’s essential to have a basic understanding of the many types of evaporative coolers. This data helps you to focus your search based on your budget and the specifics of your cooling requirements. Furthermore, knowing the most common evaporative cooler brands can offer you an advantage at the appliance store. All brands have strengths and drawbacks, and only a few may offer the type of evaporative cooler that meets your requirements.

The remainder of this text covers the various types of Evaporative coolers and the powerful evaporative cooler brands. The most common are direct, indirect, 2-stage, portable, ducted, mounted, 2-in-1, and tanked or piped evaporative coolers. Hessaire, Honeywell, Luma, Breezewell, and Frigidaire are the evaporative cooler brands discussed here.

Types of Evaporative Coolers

The essential concept of all evaporative coolers is the same. They have mechanisms in place that allow water to evaporate into the atmosphere. Because the lowest-energy water molecules evaporate first, the air temperature is lowered by these chilly molecules.

·        It is indirect.

The basic principle of indirect evaporative coolers is the same as that of direct Evaporative coolers. Indirect coolers, on the other hand, have little effect on air humidity. They do this by isolating the outside air, cooled by evaporation, from the interior air, which is conditioned and then pumped inside.

That is usually performed by blowing air through a series of moist pipes. The interior air, which is going through the pipes, will then be cooled by that cooled air. This method of cooling is suited for wetter places since it causes more minor changes in internal humidity. Indirect systems are typically employed in larger applications such as warehouses and large retail stores.

·        Direct

The most prevalent type of evaporative cooler is direct Evaporative coolers, commonly known as swamp coolers. They pull hot air through a moistened membrane with the help of a fan. After that, the cooler air is evacuated into the house. This evaporative cooler comes in various sizes, from small enough to cool a single small room to huge enough to cool an entire house.

Because this method adds humidity to the air, it is not recommended in places with moisture problems. Open your home’s vents or utilize whole-house ventilation fans to help partially fight this. Because they function best with steady airflow, positioning the direct cooler in a window or gently opening windows or vents is vital.

·        Tanked cooler or piped

A water source is required for all evaporative coolers. A tank or a water hose or pipe can be used to provide this supply. Tanks demand more attention because you must replace them regularly as you use up your water. Piped evaporative coolers (or those linked to a hose) are more complex to install and are more likely to leak, but they do not need to be refilled regularly.

·        Mounted evaporative coolers

Evaporative coolers that are installed can be placed on a wall, window, roof, or even the ground. Permanent or semi-permanent coolers are standard. They’re too hefty to move quickly (unless maybe once a year) and are frequently bolted in place all year. Almost all indirect and two-stage evaporative coolers require some mounting. Larger direct evaporative coolers, on the other hand, work better when installed.

·        2-Stage

2-stage evaporative coolers combine indirect and direct evaporative cooling processes, as the name implies. Air can be cooled in this way rather than using only direct or indirect evaporative coolers. This colder air is also created with greater energy efficiency. This technology is not widely used at the moment.

The air is first drawn through an indirect cooling system that cools the inner air without adding humidity. The colder air is then sent through a direct evaporative membrane, which cools it even further. This method elevates the humidity level within the house to between 50 and 65 percent.

·        Portable

Because of its compact size or ease of transportation, portable evaporative coolers are so named. During the non-cooling season, they can be conveniently transported from room to room and stored. Portable evaporative coolers almost always use direct technology. The bottoms of portable evaporative coolers frequently include wheels.

·        Ducted

Evaporative coolers can work with or without ducting if they are large enough. Ducts are beneficial because they allow chilled air to reach your entire home efficiently. Keep in mind that ducts for evaporative coolers must be more significant than those for refrigerant-based air conditioning systems. That means that before installing an evaporative cooler in your duct system, you should consult an HVAC professional.

These two-in-one evaporative coolers combine direct evaporative coolers with a simple fan. This adaptability is helpful because the fan may be all you need or require at times. The fan also aids in the distribution of the newly cooled air throughout the room or space.

Best Evaporative Cooler Brands

Evaporative coolers come in a variety of brands. The following is a list of some of the most well-known brands. To make an informed purchase, shop both online and in-person, read reviews on the specific item you’re considering, and follow all manufacturer’s instructions.

·        Energy labs

Energy Labs manufactures industrial-sized indirect evaporative coolers that are put on the roof. These would work well in a large retail setting or as part of a new construction scheme. These vast units work best when they’re connected to the proper ductwork.

·        Hessaire

Hessaire is known for producing a wide range of evaporative coolers, both direct and portable. These wheeled units are relatively substantial in portability and may be used anywhere from a small warehouse to an apartment. Hessaire is also releasing a series of wall-mounted evaporative coolers. Overall, Hessair evaporative coolers have received positive feedback.

Our Favorite Hessaire Evaporative Cooler is Hessaire MC18M (Check on Amazon)

·        Luma comfort

Luma Comfort is one of Newair’s evaporative cooler brands. These 2-in-1 systems are lightweight and come with a separate fan, and a direct evaporative cooler. You can use both parts together or separately.

·        Breezewell

Breezewell primarily sells portable evaporative coolers that are advertised as 3-in-1. A fan, cooling, and a humidifier are among the three characteristics. Direct evaporative coolers, on the other hand, are all humidifiers. Breezewell produces a variety of evaporative coolers with a striking, modern appearance.

·        Frigidaire

Frigidaire produces a wide selection of evaporative coolers priced at both ends of the Evaporative cooler pricing range. That well-known brand is found practically everywhere evaporative coolers are marketed. Frigidaire, on the other hand, is best recognized for its essential refrigerant-style air conditioners.

·        Honeywell

This big corporation manufactures a wide range of technology for various industries, including business, construction, and evaporative coolers. Honeywell, like Hessaire, focuses on direct and portable evaporative coolers.

The things to consider when choosing an evaporative cooler

Location: Make sure you’re in an arid region. If you reside somewhere with a humidity level of more than 60%, an evaporative cooler will not meet your needs; it will make your room even more humid. Residents in our western and southernmost states will benefit from evaporative coolers. Choose an air conditioner if you live in the Midwest or east of Kansas. Other essential factors to consider include:

Space size: The first significant aspect is the size of the area or space that needs to be cooled. We recommend measuring your space and comparing it to each model for energy efficiency, accuracy, and cost-effectiveness. Buying the most potent model isn’t always the most effective option – especially not when it comes to your cash.

Size of Cooler: While some swamp cooler systems are mounted on your roof to cool your entire home, we’ll focus on the more economical and portable evaporative cooler options. As a result, you’ll need a location to store the cooler while it’s not in use. Small and medium-sized models can be stored in a closet, while larger models designed for workshops or barns require year-round storage.

Connection of water: Evaporative coolers have a water tank that can be manually filled or connected to a water supply to keep it filled continually. Manually filled tanks are more portable, whereas constantly filled tanks are handier because you can set it and forget it. We strongly recommend a continuously filled tank if you plan to install the swamp cooler on a patio, deck, garage, or other outdoor site and have access to a water tap. If you want to move the cooler around your house, choose the manual fill option, frequently the less expensive choice.

The Best Way to Size Evaporative Coolers

The technique of sizing evaporative coolers is relatively straightforward. Almost all evaporative coolers have a recommended square footage. All you have to do now is multiply that number by the square footage of the area you’re trying to cool.

Keep in mind that your ceiling is exceptionally high. You may need to enlarge your Evaporative cooler to accommodate the extra capacity. Furthermore, if you use an inadequate Evaporative cooler in a large home or space, it will work extremely hard without producing much. That is to say, correctly sizing your evaporative cooler will save you the most energy and money.

How Often Should Evaporative Cooler Filters Be Replaced?

Cleaning all evaporative cooler components and filters at least once a month is suggested. These systems soon become soiled due to the high humidity and moisture content. It is hazardous if mold is allowed to grow on the filters. If left untreated, this mold will create spores that will spread throughout the house.

Frequently asked questions

Is Humidity in the Home Harmful?

Humidity in the home is only a problem if it becomes excessive. It is generally advised that you keep your home’s humidity level between 30% and 50%. Humidity levels that are greater than this can be problematic. It can, for example, lead to the growth of mold and mildew, as well as structural damage.

The additional moisture in the air will eventually soak through the wall and ceiling materials. That produces an environment conducive to the growth of microorganisms such as bacteria and fungus. As a result, these microorganisms can grow into a mold or cause your home’s components to decay.

Mold is the most serious of the potential consequences of excessive humidity in the home. Exposure to high numbers of mold spores for an extended period might develop or exacerbate respiratory problems. Take quick action to lower in-home humidity if you notice mold in your home.

What Climates Do Direct Evaporative Coolers Work Best In?

Direct evaporative coolers are best suited to dry, hot conditions. Because evaporative coolers add humidity to the air, they will raise the humidity level of the indoor air to a more pleasant level. Wet regions, on the other hand, are not suitable for direct evaporative coolers. The interior air humidity will rise to dangerous levels, posing a health risk.

How Frequently Should I Replace My Evaporative Cooler Pad?

It’s critical to change your evaporative cooler pads in Phoenix, AZ, frequently if you want to keep your swamp cooler running at full performance. The pads in your cooler are working hard to keep the air cool, and while they do so, they begin to accumulate deposits. As a result, the effectiveness of your cooler will begin to deteriorate, resulting in reduced cooling capacity. Premier Industries Inc. has a lot of experience with swamp coolers and cooler pads, and we have a few suggestions to assist you in figuring out when it’s time to replace your evaporative cooler pad.

Keep an eye out for pad buildup.

When your evaporative cooler pads in Phoenix, AZ, are brand new, there’s nothing like the cool air they provide. New pads efficiently absorb the most amount of water, ensuring that your home maintains the coolest temperatures possible. Mineral deposits such as magnesium and calcium build up on the pad over time, preventing it from properly absorbing water. That implies the pads won’t expel cold air, resulting in higher temperatures and lower efficiency. Worse, this buildup can lead to rusting and corrosion in the cooler!

To avoid this, keep an eye on the pads for signs of buildup and replace them as soon as you spot them. That will ensure that your airflow is as efficient as possible.


Evaporative coolers, unlike regular fans, pass the air through specific pads that have been drenched in chilled water before being blown out. This procedure turns the calm water into a gas, lowering the air temperature as it exits the unit. Evaporative coolers, sometimes known as “swamp coolers,” are exceptionally efficient in dryer areas when humidity levels are already low. They may appear complicated, but they’re pretty simple to use. All you have to do is fill them up with water, and you’re set to go.

We have gone over the types of evaporative coolers and the technology and features available on the market in this article. We have also introduced some of the most well-known evaporative cooler manufacturers. I hope this article is of great help to you.

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