Often overlooked, your garage is more than just a vehicle storage room. It’s a workshop, a hobby room, a gym, and, sometimes, a getaway. But, amidst all these uses, comfort often takes a backseat. After all, how comfortable can a room filled with stale, humid air be? This is where the hero of our story comes in – the dehumidifier. In this article, we’ll delve into the vital role of dehumidifiers, presenting the ‘Essential Guide to Cooling Your Garage,’ making it not just bearable but enjoyable.

With the Midwest’s notorious humidity being part and parcel of our daily lives in Volo, IL, the question, “How effective is a dehumidifier in cooling a garage?” has likely crossed many homeowners’ minds. After all, it’s not just the comfort of our living rooms and bedrooms we seek to optimize but the whole of our living spaces, garages included.

This blog post delves deep into garage cooling and explores how a dehumidifier could be your silent ally in achieving optimal garage temperatures. EDM Garage Doors stands poised and ready to provide comprehensive insight into these mechanisms and offer unparalleled services for your garage needs.

Stay with us as we demystify the role of dehumidifiers in cooling your garage, and discover how Volo residents can harness this technology for better garage environment management. You may be surprised to learn just how transformative a simple dehumidifier can be. Welcome to the journey toward a cooler, more comfortable garage experience.

Understanding Humidity and Its Impact on Your Garage

Humidity, or the amount of water vapor in the air, can have various negative impacts in a garage. High humidity levels can make the space feel hotter due to humid air’s ability to retain heat, making the garage uncomfortable, especially if it’s used as a workspace or gym.

Humidity also creates an environment conducive to unpleasant odors, which often come from bacteria and fungi that thrive in damp conditions. Additionally, it’s an ideal environment for the growth of mold and mildew, potentially causing health issues due to exposure to mold spores, including allergic reactions and respiratory problems.

High humidity can also harm stored items. Many people use their garages for storage, and items like tools, clothes, books, and important documents can corrode, warp, or otherwise be damaged in high humidity.

To combat these negative effects of humidity, a dehumidifier can be used. This device maintains an optimal level of humidity in your garage, ensuring the environment is neither too dry nor too humid. The subsequent sections will provide more insight into how dehumidifiers work and how they can help reclaim your garage from the problems caused by excessive humidity.

The Functioning of a Dehumidifier: Behind the Scenes

A dehumidifier is an electronic device that reduces and maintains the air’s humidity level, usually for health or comfort reasons or to eliminate musty odor. By drawing excess moisture from the air, a dehumidifier helps prevent the growth of mold and mildew, which thrive in damp environments.

Here’s a step-by-step description of how a dehumidifier functions:

Air Intake

First, the dehumidifier pulls air from the surrounding environment through a fan.


The air is then passed over cooling coils, kept at a low temperature by a refrigeration process similar to the one in your refrigerator or air conditioner. As the warm, humid air cools, it’s unable to hold as much moisture.


The excess moisture in the air condenses into droplets on the cold surface of the coils. This process is known as condensation. The water droplets drip into a collection tank, a reservoir, or a bucket.

Reheating and Releasing Dry Air

After losing excess moisture, the cool, dry air passes over warm coils that are slightly reheated. This helps to maximize the dehumidifier’s efficiency by recovering some of the energy used during the cooling phase. Finally, the dry air is blown back into the room, reducing humidity.

Disposal of the Collected Water

The water collected in the tank is then emptied manually, or it can be set up to drain continuously with a hose if the dehumidifier is equipped with a drain connection. Some dehumidifiers also have a feature that automatically shuts off the device when the water tank is full to prevent overflow.

Filter Cleaning

Most dehumidifiers also have a filter that traps dust and allergens. This filter needs to be cleaned or replaced periodically to maintain the unit’s efficiency.

By running a dehumidifier in your garage, you can prevent damage to tools, vehicles, and any other items that may be affected by excessive moisture, including your garage door. Furthermore, keeping the humidity level in check can also help to create a more comfortable environment for any activities you might use your garage for, such as a workshop or exercise area.

How a Dehumidifier Cools Your Garage

A dehumidifier is a device that reduces the humidity level in the air, typically for health or comfort reasons or to eliminate musty odor. They work by drawing in moist air, removing the moisture, and then blowing the dried air back out.

While a dehumidifier doesn’t directly cool the air like an air conditioner, it can make the space more comfortable in hot, humid climates, such as a garage. This can indirectly lead to a sensation of cooling for several reasons:

Reducing Humidity

The most direct way a dehumidifier can cool your garage is by reducing the humidity. When the air is humid, sweat does not evaporate as quickly, making it harder for your body to cool. A dehumidifier can make the environment feel cooler by removing excess moisture from the air because sweat can evaporate more efficiently.

Comfort Improvement

With the reduction of humidity, the overall comfort level in your garage can improve. Even if the temperature remains the same, less humidity can make it feel cooler. This is because our bodies use sweat to cool off, and if the air is too humid, the work cannot evaporate to cool the body.

Preservation of the Environment

High humidity can lead to mold and mildew, which can heat up your garage. A dehumidifier can prevent these problems by keeping humidity at appropriate levels, which indirectly helps maintain more excellent conditions.

More Efficient Air Conditioning

If you have an air conditioner in your garage, a dehumidifier can help it run more efficiently, especially if you often leave the garage door open. Air conditioners have to remove humidity before they can effectively cool the air. By reducing the moisture in the air, a dehumidifier can lessen the air conditioner’s workload, allowing it to cool the garage more effectively and efficiently.

Remember, while dehumidifiers can contribute to a more relaxed environment by reducing humidity, they don’t lower the actual temperature. For high-temperature environments, consider other forms of cooling, such as air conditioning or fans. However, in a humid garage, a dehumidifier can certainly make conditions more comfortable.

Selecting the Right Dehumidifier for Your Garage

Choosing the right dehumidifier for your garage depends on several factors, such as the size of the garage, the amount of moisture present, the climate in your region, your budget, and whether you may also need garage door repair. Here are some steps to guide you in your selection process:

Evaluate the Size of Your Garage

Dehumidifiers are rated by how many pints of moisture they can remove from the air in a 24-hour period. Larger spaces generally require dehumidifiers with a higher pint capacity. For example, for a 500 sq ft garage in a moderately damp condition, a 12-pint dehumidifier may suffice. You may need a dehumidifier with a 50-pint or higher capacity for more oversized garages or highly moist conditions.

Assess Moisture Levels

If your garage is just slightly damp, you might not need as high-capacity a dehumidifier as you would if it is constantly wet. If you’re dealing with issues like condensation on windows, mold, or mildew, it indicates a high humidity level, requiring a dehumidifier with a higher pint capacity.

Consider the Temperature

If your garage tends to be cool, ensure the dehumidifier you choose is capable of operating in lower temperatures. Some dehumidifiers can function in temperatures as low as 41 degrees Fahrenheit (5 degrees Celsius). This feature is known as “auto-defrost” or “low-temperature operation”.

Energy Efficiency

Look for an Energy Star-certified dehumidifier, as they use less energy and could save you money in the long run.

Additional Features

Consider dehumidifiers with features like a humidistat (which allows you to set the desired humidity level), auto shut-off (which turns off the machine when the water tank is full or the desired humidity level is reached), continuous drain capability (useful for very humid garages, so you don’t have to empty the water reservoir constantly), and filters (to improve air quality).


Dehumidifiers can range in price from around $50 to several hundred dollars. Higher-capacity units or those with additional features will generally be more expensive. Make sure to balance the cost with your needs and the potential benefits of having a dehumidifier.

Reviews and Recommendations

Check online reviews or seek recommendations from people who have used dehumidifiers in similar environments. This will give you a real-world understanding of the dehumidifier’s performance, durability, and usability.

Remember, the goal is to find an efficient, cost-effective, and right dehumidifier for your specific needs. With some research and consideration, you can find a model that makes your garage a more comfortable and healthier space.

Maintenance Tips for Your Garage Dehumidifier

Maintaining your garage dehumidifier is essential to ensure its efficiency and prolong lifespan. Here are some tips to keep your dehumidifier running smoothly:

  1. Empty and Clean the Reservoir Regularly: When the dehumidifier’s reservoir is complete, the unit will automatically shut off to prevent overflow. Empty the water reservoir regularly to allow the dehumidifier to continue functioning. While emptying the pool, also take the time to clean it out to prevent mold or bacteria buildup. You can use mild soap and warm water for this.
  2. Clean or Replace the Filters: Most dehumidifiers have filters that need to be cleaned or replaced periodically. Check the manufacturer’s instructions for specific guidance on this. Generally, cleaning involves vacuuming off dust and rinsing the filter with water.
  3. Inspect Coils: If your dehumidifier has coils, they should be cleaned periodically. Unplug the dehumidifier, remove the outer casing, and gently brush and vacuum the coils. Be careful not to damage the delicate fins on the waves.
  4. Regularly Check the Intake and Exhaust Grilles: Dust can often build up on these parts, reducing the dehumidifier’s efficiency. They can usually be cleaned with a vacuum or soft brush.
  5. Keep the Dehumidifier in the Right Place: Ensure it is located where air can freely flow into and out. It should be a few inches from walls or other large objects.
  6. Inspect for Ice: Check for ice build-up on the dehumidifier coils if your garage gets very cold. If you see this happening, it could mean the dehumidifier isn’t meant for such cold conditions, or it might be a sign of a more significant problem, such as a refrigerant leak.
  7. Schedule Annual Maintenance: Depending on how heavily you use your dehumidifier, you should schedule professional maintenance annually, just like you would for garage door repair. A professional can thoroughly inspect and clean the unit’s internal parts, check for any potential problems, and keep it running smoothly.
  8. Store Properly: If you aren’t using the dehumidifier for an extended period, clean it thoroughly, ensure it’s dry, and store it in a clean, dry place. Cover it to keep dust from getting inside.

Remember, always follow the manufacturer’s instructions for maintenance and care. Proper maintenance will not only ensure your dehumidifier works efficiently, but it can also extend the life of the device.

The Impact of a Dehumidifier on Energy Consumption

A dehumidifier, like any appliance, uses energy to operate. However, the actual impact of a dehumidifier on your energy consumption will depend on a variety of factors such as the unit’s size, efficiency, how long it’s operating each day, and the electricity rate in your area.

  1. Size and Efficiency of the Unit: Dehumidifiers come in different sizes, generally rated by how much moisture they can remove from the air in a 24-hour (measured in pints). Larger units and those that can remove more moisture per day will typically use more energy. However, they might also work more quickly and efficiently, potentially using less energy overall than smaller, less powerful units operating for longer periods.
  2. Operating Time: The longer your dehumidifier runs each day, the more energy it will use. The operating time will depend on the humidity level in your garage, the efficiency of the dehumidifier, and the desired humidity level you’ve set on the unit.
  3. Energy-Efficiency Rating: Energy Star-certified dehumidifiers, for instance, use less energy than conventional models. According to Energy Star, their certified dehumidifiers use nearly 15% less energy than a similarly sized conventional unit, which could save you over $200 during the lifetime of the unit.
  4. Effect on Other Appliances: If you have an air conditioner in your garage, using a dehumidifier could potentially reduce the energy consumption of the air conditioner. That’s because air conditioners must work harder to cool humid air. By reducing the humidity, a dehumidifier can make the air conditioner’s job easier, potentially saving energy.

While a dehumidifier does use energy, the cost can often be offset by the potential energy savings from other appliances and the benefits of a more comfortable, healthier, and safer environment in your garage. Always consider the size, efficiency, and Energy Star rating when choosing a dehumidifier to ensure it’s the most energy-efficient choice for your needs.

Alternatives to a Dehumidifier for Your Garage

While dehumidifiers are great, alternative solutions to reduce humidity in your garage exist. In this section, we explore those alternatives and their pros and cons.

Choosing the right dehumidifier can have a transformative effect on your garage

In conclusion, we’ve explored the vital role of dehumidifiers in maintaining a comfortable, healthy, and optimal environment in your garage. We have shed light on the various issues humidity can cause, from creating an uncomfortable atmosphere to damaging your stored items and impacting your health. But more importantly, we’ve highlighted the robust solution that a dehumidifier presents, making your garage not only bearable but truly enjoyable.

Choosing the right dehumidifier can transform your garage, turning it from a mere storage room into a comfortable extension of your living space. Whether you’re using it as a gym, workshop, hobby room, or just a place to escape, maintaining a relaxed and comfortable environment is critical. That’s where dehumidifiers come in.

However, remember that your garage is a complex space, and other elements, like the garage door, need consideration. At EDM Garage Doors, we’re dedicated to helping you ensure that your garage is not just a functional space but an integral part of your home. As a trusted garage door company in Volo, IL, we’re ready to provide all the expert services and advice you need for your garage.

As you consider implementing the valuable information we’ve shared about dehumidifiers, why not contact us for your garage door needs? We can comprehensively approach your garage’s comfort, safety, and functionality.

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