Hessaire Evaporative Coolers: Efficiency, Models, and Maintenance

When it comes to beating the summer heat with energy-efficient and portable cooling, the Hessaire Evaporative Coolers stands out as one of the most reliable solutions on the market.

Known for its powerful airflow, durability, and eco-friendly performance, Hessaire’s line of evaporative coolers offers an affordable alternative to traditional air conditioning systems.

In this comprehensive guide, we’ll explore the best Hessaire evaporative coolers models, their unique features, setup instructions, and maintenance tips — ensuring you get the most efficient and refreshing experience possible.

What Is a Hessaire Evaporative Cooler?

A Hessaire evaporative cooler, also known as a Hessaire swamp cooler, is a portable cooling device that uses water evaporation to reduce air temperature.

Unlike traditional AC units that use refrigerants and compressors, Hessaire coolers rely on natural evaporation, making them eco-friendly, cost-effective, and ideal for dry climates.

By drawing in hot, dry air through water-saturated cooling pads, the cooler releases cool, moist air into your space — creating a comfortable and refreshing environment without excessive energy use.

Top Features of Hessaire Evaporative Coolers

Hessaire’s portable coolers combine mobility, power, and sustainability in one compact design.

Here are the standout features that make them a top choice for both home and outdoor use:

• High CFM Output: Models like the Hessaire MC37M and MC61M provide up to 3,100–5,300 cubic feet per minute (CFM) of airflow — enough to cool large spaces quickly.
• Energy Efficiency: Consumes 80% less electricity than conventional air conditioners.
• Easy Portability: Equipped with casters and handles for smooth movement across patios, workshops, or garages.
• Water Level Indicator: Built-in gauges make it easy to monitor and refill water as needed.
• Variable Speed Control: Adjust fan speed to your comfort level.
• Ice Compartment: Some models allow adding ice for extra cooling power during peak heat hours.

Best Hessaire Evaporative Coolers Models

Let’s break down the most popular models so you can choose the right one for your space and budget.

1. Hessaire MC18M Portable Evaporative Cooler

Compact yet powerful, the Hessaire MC18M is a top pick for small to medium-sized spaces.

• Cooling Area: Up to 500 sq. ft.
• Airflow: 1,300 CFM
• Water Tank Capacity: 4.8 gallons
• Portability: Lightweight with built-in wheels
• Ideal For: Bedrooms, patios, RVs, and workshops
• Bonus: Option to add ice for enhanced cooling performance.

2. Hessaire MC37M Mobile Evaporative Cooler

The Hessaire MC37M is one of the brand’s bestsellers — a perfect blend of mobility and cooling strength.

• Cooling Area: Up to 950 sq. ft.
• Airflow: 3,100 CFM
• Tank Capacity: 10.3 gallons
• Durability: Rugged design suitable for outdoor and industrial use
• Features: Oscillating louvers for even air distribution and continuous hose connection for long operation.

3. Hessaire MC61M Evaporative Cooler

Designed for large open spaces, the Hessaire MC61M Evaporative Cooler delivers commercial-grade cooling performance.

• Cooling Area: Up to 1,600 sq. ft.
• Airflow: 5,300 CFM
• Tank Size: 14 gallons
• Best For: Workshops, warehouses, garages, and outdoor events
• Highlight: Dual water fill options – manual fill or direct hose connection for convenience.

How to Use a Hessaire Evaporative Cooler

Operating a Hessaire evaporative cooler is simple and intuitive. Follow these steps to get optimal performance:

1. Fill the Water Tank: Open the water reservoir and fill it with clean, cool water. You can also add ice for extra cooling power.
2. Plug In and Turn On: Connect the power cord and select your desired fan speed.
3. Activate Pump Mode: Turn on the water pump so the pads absorb moisture before starting the fan for the best cooling results.
4. Adjust Airflow Direction: Use adjustable louvers to direct the airflow throughout the room.
5. Maintain Ventilation: Keep a window or door slightly open to allow air circulation — preventing humidity buildup.

Can You Put Ice in a Hessaire?

Yes, you can! Adding ice to a Hessaire cooler’s ice compartment enhances the cooling effect, especially on extremely hot days. While the main cooling mechanism relies on water evaporation, ice helps lower the temperature of the circulating air faster, giving you an instant cool breeze.

However, it’s recommended to use ice in moderation, as too much may limit the water pump’s efficiency.

How to Clean and Maintain Your Evaporative Cooler

Proper maintenance extends the life and performance of your cooler. Here’s a step-by-step guide to clean your Hessaire evaporative cooler effectively:

1. Unplug the Unit: Always disconnect from power before cleaning.
2. Drain the Water Tank: Open the drain plug and empty all remaining water.
3. Remove Cooling Pads: Take out the pads and rinse them thoroughly to remove dust and mineral buildup.
4. Clean the Tank and Exterior: Use mild soap and water — avoid harsh chemicals.
5. Dry Before Reassembling: Let all components air dry before reinstalling them.
6. Replace Pads Annually: Change the cooling pads once a year for maximum efficiency.

Keeping your cooler clean ensures strong airflow, odour-free operation, and consistent cooling output.

How to Drain a Hessaire Evaporative Cooler

Draining your Hessaire cooler is essential for long-term maintenance, especially before storage:

1. Locate the drain plug or valve at the bottom of the unit.
2. Open it to release all water.
3. Allow the tank to dry completely before storing the unit to prevent mold or mildew growth.

This simple routine keeps your cooler in top working condition year after year.

Why Choose a Hessaire Portable Evaporative Cooler?

Here’s why Hessaire continues to dominate the market:

• Eco-Friendly: No harmful refrigerants, minimal energy use.
• Cost-Effective Cooling: Save on electricity bills compared to AC units.
• Portability: Easy to move indoors or outdoors.
• Durability: High-quality construction suitable for rugged environments.
• Versatility: Works great in homes, workshops, garages, patios, and commercial spaces.

Whether you choose the MC18M, MC37M, or MC61M, each Hessaire cooler delivers powerful, natural cooling that helps you stay comfortable all summer long.

Final Thoughts: Efficient Cooling Made Simple

A Hessaire Evaporative Cooler offers the perfect balance of performance, portability, and energy efficiency. Whether you need a compact model for your bedroom or a high-capacity cooler for outdoor use, Hessaire provides reliable cooling comfort without breaking your budget.

For those comparing models, many users also find the Vissani air cooler to be a worthy alternative, though Hessaire often leads in airflow and durability. Choosing between the two ultimately depends on your space, climate, and cooling needs.

Keep your cooler clean, properly ventilated, and maintained, and it will reward you with years of cool, fresh air wherever you need it most.