
A well-designed air conditioned garage can be a game-changer for car enthusiasts and homeowners alike. This is because an air conditioned garage can help protect your vehicle from extreme temperatures and humidity, which can cause damage to the interior and exterior.
By installing an air conditioning unit specifically designed for garages, you can maintain a comfortable temperature between 68-72 degrees Fahrenheit. This is ideal for working on your car, storing your vehicle, or simply enjoying some downtime in your garage.
Garage air conditioning units are designed to be energy-efficient and can be installed in as little as a few hours. They can also be integrated with your home's HVAC system for seamless control and operation.
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Why Your Garage is Too Hot
Your garage is too hot in the summer because of a few key reasons. No insulation in the walls and ceiling means cool air can't be trapped inside and outside heat can't be blocked.
Concrete floors are another culprit, absorbing and retaining heat that makes your garage feel like an oven during hot weather. And let's not forget about the large metal garage doors, which act as a barrier to absorb outdoor heat and transfer it inside.
Lack of ventilation is also a major contributor to a hot garage. Without adequate air circulation, hot air accumulates inside, making it feel like a sauna.
Here are the main reasons your garage is too hot:
- No Insulation
- Concrete Floors
- Garage Doors
- Lack of Ventilation
Choosing the Right Unit
Choosing the right unit for your air conditioned garage is crucial. It largely depends on the size of your space, so start by assessing the square footage of your garage. A small garage may suffice with a portable or window unit model, while a two-car garage or larger may require more powerful options.
Factors such as budget, energy efficiency requirements, and smart controls can all impact the decision. Consider the British Thermal Unit (BTU) ratings and Seasonal Energy Efficiency Ratio (SEER) ratings. Higher BTU ratings indicate greater cooling power, while a higher SEER rating signifies increased energy efficiency.
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Noise levels are also an important consideration. Some units, like the LG window AC, run quietly at just 44 decibels on the lowest setting. Others, like the Whynter 14k BTU Dual-Hose portable AC, work quietly at 56 dB.
Here are some key features to consider when choosing a garage air conditioner:
Ultimately, the best unit for you will depend on your specific needs and preferences. Take the time to research and compare different types of garage air conditioners before making a decision.
Mini-Split Systems
Mini-split systems are a popular choice for garage air conditioners due to their energy efficiency. They offer a high level of efficiency, making them an affordable long-term solution for cooling and heating.
Mini-splits are easy to install, as they don't require any ductwork. They consist of an indoor unit connected to an outdoor unit, which is connected by a small hole in the wall. This design helps to preserve floor space in the garage.
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One of the benefits of mini-split systems is that they provide customizable zoning options, allowing you to independently control temperatures in different garage areas. This is especially useful in garages with multiple workstations or areas with different temperature needs.
Mini-split systems can be used for both cooling and heating, making them a great option for year-round comfort in the garage. They can be used in garages of various sizes, from small to large, and are available in different BTU ratings to suit specific needs.
Some popular mini-split systems for garages include the Senville Leto Series Mini-Split, which offers excellent energy efficiency, and the MrCool DIY 36K BTU mini-split, which provides powerful cooling for larger garages.
Here are some key features to consider when choosing a mini-split system for your garage:
- Energy efficiency: Look for systems with high SEER ratings (up to 24 SEER) for optimal energy savings.
- BTU rating: Choose a system with a BTU rating that matches your garage size and cooling needs.
- Installation costs: Consider the upfront cost of installation, as well as any potential rebates or incentives.
- Professional installation: While some mini-split systems can be installed DIY, others may require professional installation.
Window Units
Window units are a popular choice for air conditioned garages, and for good reason. They're relatively easy to install, making them a convenient option for garages with suitable window space.
You can find a wide range of window units on the market, from affordable options to more advanced models with features like programmable timers and remote controls.
Some popular window unit models include the Frigidaire Window-Mounted Room Air Conditioner and the Midea 12,000 BTU Easy Cool Window Air Conditioner. These units offer efficient cooling and come with convenient features like adjustable side panels and washable air filters.
Window units are also known for being energy efficient, which can help reduce your electricity consumption and lower your energy bills over time. However, they can be noisy and may obstruct natural light and views from the window.
Here are some key pros and cons of window units to consider:
Overall, window units are a great option for garages with suitable window space, offering efficient cooling and convenient features. Just be aware of the potential drawbacks, such as noise and obstructed natural light.
Cooling Systems
Ductless systems are a great option for garages that don't have existing ducts.
They are efficient and quiet, making them perfect for garages that are used frequently.
One of the biggest advantages of ductless systems is that they don't require ductwork, which can be a hassle to install.
Professional installation is required, but it's worth it for the long-term benefits.
A higher upfront cost is the only downside, but it's a small price to pay for a permanent and efficient solution.
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Permanent Solutions
Lex Air Conditioning and Heating, a trusted professional in the industry, understands the importance of choosing the right air conditioning unit for your home.
At Lex Air, you can enjoy peace of mind knowing that your garage AC system is in the hands of trusted professionals dedicated to delivering exceptional service and results every time.
Mini-split systems are the gold standard for garage air conditioning. They consist of an outdoor compressor/condenser and an indoor air-handling unit, connected by a conduit that houses the power cable, refrigerant tubing, suction tubing, and a condensate drain.
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Energy efficiency is a key benefit of mini-splits, allowing for zone-specific cooling and reducing energy waste.
No ductwork is needed with mini-splits, making them easier and less invasive to install.
Quiet operation is another advantage of mini-splits, which are generally quieter than window or portable AC units.
Here are some key features of mini-splits:
- Energy Efficiency: Mini-splits allow for zone-specific cooling.
- No Ductwork Needed: Since mini-splits don’t require ductwork, they’re easier and less invasive to install.
- Quiet Operation: These units are generally quieter than window or portable AC units.
Window AC units are another option for air conditioning your garage, and they can be a cost-effective solution.
However, make sure your garage window can support the weight of the unit, and reinforce the frame if necessary to avoid any mishaps.
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Maintenance and Installation
Regular maintenance is key to ensuring your garage air conditioner operates at peak efficiency. This includes cleaning the filters, checking for leaks, and scheduling routine maintenance. By keeping your unit in good condition, you can help prevent performance issues, save energy, and extend the lifespan of your air conditioner.
Proper installation is crucial for maximizing the performance and efficiency of your garage air conditioner. This includes choosing the right size of unit for your garage, ensuring the unit is installed correctly, and optimizing the placement of the unit for efficient cooling.
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To maintain your garage air conditioning system, follow these simple steps:
- Clean or Replace Filters: Dirty filters reduce airflow and efficiency. Check and clean or replace them every 1-2 months.
- Inspect Coils: Dirty coils can cause the system to overheat. Clean them with a coil cleaner or a soft brush.
- Check Fins: Bent fins can block airflow. Use a fin comb to straighten them out.
- Clear Debris: Remove any debris around the outdoor unit to ensure proper airflow.
- Check the Pad: Ensure the AC unit pad is level and intact to prevent vibrations and damage.
- Professional Servicing: Schedule annual maintenance with a professional to catch any issues early.
Weather Stripping
Weather Stripping is a simple yet effective way to seal gaps around your garage door and windows. This helps keep hot air out and cool air in.
You can choose from three types of weather stripping: foam tape, rubber, and vinyl. To install it, apply it around the edges of doors and windows, making sure it's snug but not too tight.
Proper weather stripping can reduce your cooling costs by up to 20%. This is a significant savings, especially during the hot summer months.
Regular Maintenance
Regular maintenance is key to ensuring your garage air conditioner operates at peak efficiency. This includes cleaning the filters, checking for leaks, and scheduling routine maintenance. By keeping your unit in good condition, you can help prevent performance issues, save energy, and extend the lifespan of your air conditioner.
Dirty filters reduce airflow and efficiency, so it's essential to check and clean or replace them every 1-2 months. Clean or replace filters regularly to keep your unit running smoothly.
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Inspecting coils is also crucial, as dirty coils can cause the system to overheat. Clean them with a coil cleaner or a soft brush to prevent overheating.
To ensure proper airflow, remove any debris around the outdoor unit. This simple step can make a big difference in your air conditioner's performance.
Regular maintenance also involves checking the pad to ensure it's level and intact. This prevents vibrations and damage to your unit.
Here's a simple checklist to help you stay on top of your garage air conditioner's maintenance:
- Clean or replace filters every 1-2 months
- Inspect coils and clean them with a coil cleaner or soft brush
- Remove debris around the outdoor unit
- Check the pad to ensure it's level and intact
- Schedule annual maintenance with a professional
Proper Installation
Proper installation is crucial for maximizing the performance and efficiency of your garage air conditioner.
Choosing the right size of unit for your garage is a must, as a unit that's too small won't be able to keep up with the cooling demands, while a unit that's too large will waste energy and increase your bills.
Improper installation can lead to reduced efficiency, increased energy consumption, and potential damage to the unit, so it's best to hire a professional for the installation process.
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Call Parker & Sons
Parker & Sons has 50 years of experience in the business, making them a trusted provider of garage AC installation services.
Hiring a professional like Parker & Sons for garage AC installation ensures optimal performance.
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Assessing Your Needs
To assess your garage's cooling needs, start by calculating its square footage. This will help you determine the right size of air conditioning unit for your space. For example, a garage with a square footage of 200-300 square feet may require a unit with a capacity of 5,000-7,000 BTUs.
Next, consider your usage frequency. If you spend a lot of time in your garage, you'll want a more powerful unit to maintain a comfortable temperature. On the other hand, if your garage is mostly used for storage, a less intensive cooling solution might be sufficient.
Some items are more sensitive to temperature and humidity changes than others. For instance, valuables and electronics require a reliable cooling system to prevent damage from extreme heat and humidity. A general storage area, on the other hand, might be okay with a less intensive cooling solution.
Here are some temperature sensitivity guidelines to keep in mind:
By considering these factors, you can choose the most effective air conditioning solution for your garage and protect your belongings from extreme temperatures.
Benefits of Insulation
Insulating your garage can have a significant impact on your overall comfort and energy efficiency. It's a simple yet effective way to make your garage a more enjoyable space for work or hobbies.
Insulating your garage reduces the workload on your AC unit, making it run more efficiently. This can lead to lower energy bills and less wear and tear on your AC system.
A satisfied homeowner notes that after insulating their garage, they keep the door to the house open, which taxes the house AC but keeps the garage tolerable. This is a great example of how insulation can make a big difference in your garage's temperature.
Insulation also provides protection for stored items from extreme temperatures. This is especially important if you store valuable equipment or sensitive materials in your garage.
Here are some of the key benefits of insulating your garage:
- Energy efficiency: Reduces the workload on your AC unit.
- Comfort: Makes the space more comfortable for work or hobbies.
- Protection: Helps protect stored items from extreme temperatures.
- Cost savings: Lower energy bills and less wear and tear on your AC system.
Assessing Your Needs
To assess your garage's cooling needs, start by calculating its square footage. This will help you determine the right size of air conditioning unit to install. Garage square footage can vary greatly, so take your time to measure it accurately.

Your garage's usage frequency is another crucial factor to consider. If you spend a lot of time in your garage, whether working on projects or simply relaxing, a more powerful air conditioning unit may be necessary.
Temperature sensitivity of stored items is also a key consideration. Some items, like valuables and electronics, can be damaged by extreme heat and humidity. A reliable cooling system is essential to protect these items.
Here are some general guidelines for temperature sensitivity:
Take the time to assess your garage's unique needs and choose an air conditioning solution that fits your requirements. By doing so, you'll be able to create a comfortable and safe space for you and your belongings.
What Size Do I Need?
To determine the right size air conditioner for your garage, you'll need to calculate the square footage. Measure the length and width of your garage and multiply them to get the total square footage.
A standard one-car garage measures around 150-250 sq. ft., and a two-car garage is 350-450 sq. ft. For a 150-250 sq. ft garage, 8000 BTU is needed to cool a garage; a window or portable unit will do the job.
To estimate the BTUs required, use the following guideline: Garage Size (sq ft)BTUs Required100-1505,000150-2506,000250-3007,000300-3508,000350-4009,000400-45010,000450-55012,000550-70014,000700-1,00018,0001,000-1,20021,0001,200-1,40023,000
If your garage has poor insulation or high ceilings, you may need a more powerful unit.
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Options and Considerations
If you're considering air conditioning your garage, the first thing to think about is the size of your space. The right air conditioner largely depends on the square footage of your garage.
To determine the best option for your garage, consider your budget, energy efficiency requirements, and whether you want smart controls. These factors can impact your decision and help you choose the right air conditioner for your needs.
Portable solutions can be a great choice for garage air conditioning, offering flexibility and ease of use. They're often easier to install than permanent systems and can be moved around as needed.
However, portable air conditioning units require venting to work properly, which can be a problem if you live in an apartment or have limited ventilation options. In such cases, you may need to consider alternative solutions, such as evaporative coolers or dehumidifiers.
Combining different portable solutions can provide the best results, but it can be complex and require some trial and error to get right. Make sure to measure your garage's square footage to ensure you select a unit with adequate cooling capacity.
Here are some popular portable options to consider:
Window AC units are another option to consider, but they can be noisier and block natural light. They're a more budget-friendly option, but may not be the best choice for larger garages.
Efficiency and Performance
To get the most out of your air conditioned garage, improving efficiency and performance is key. Regular maintenance is crucial, so make sure to follow the manufacturer's instructions and schedule regular tune-ups to keep your unit running smoothly.
Proper installation is also essential, so don't skip this step. By ensuring your unit is properly sized and installed, you'll be able to enjoy a cooler, more comfortable garage without wasting energy or money.
To maximize your unit's efficiency, consider adding insulation to your garage ceiling, sun-facing walls, windows, and garage door. This will help keep cool air in and hot air out, making your unit work less hard and reducing your energy bills.
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Dehumidifiers
Dehumidifiers are a great way to make your garage feel cooler and more comfortable, but it's essential to understand their limitations. They don't actually lower the temperature, but rather reduce the humidity level.
One of the biggest pros of dehumidifiers is that they prevent mold from growing in your garage. This is especially important if you store sensitive items that can be damaged by moisture. Dehumidifiers are also portable, making them easy to move around and place in different areas of your garage.
However, dehumidifiers do require regular maintenance, including emptying the water tank. This can be a hassle, especially if you have a large garage or store a lot of items. Additionally, dehumidifiers consume power without providing cooling, which can increase your electricity bill.
Here are some key factors to consider when deciding if a dehumidifier is right for your garage:
- Reduces humidity: Makes the air feel cooler
- Prevents mold: Helps keep your garage dry
- Portable: Easy to move around
- No cooling: Doesn’t actually lower the temperature
- Maintenance: Requires regular emptying of the water tank
- Electricity use: Consumes power without providing cooling
Usage Frequency
Considering your garage's usage frequency is crucial when selecting a cooling solution. If you only use the garage for storage and rarely spend time there, a portable AC unit might be sufficient.
The frequency of use can significantly impact the effectiveness of the cooling solution. For example, if your garage doubles as a workshop, hobby space, or gym, you'll need a more permanent solution.
Occasional use typically means the garage is used for storage, and you might only spend a few hours there on weekends. In this case, a portable AC unit can be a cost-effective and convenient option.
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Here's a breakdown of the different usage frequencies and their corresponding cooling solutions:
Frequent use, on the other hand, requires a more robust and permanent cooling solution. This could be due to the garage being used as a workshop, hobby space, or gym, where people spend extended periods.
Tips for Maximizing Efficiency
To maximize your garage air conditioner's efficiency, start by improving the insulation and ventilation. Adding insulation to the ceiling, sun-facing walls, windows, and garage door will keep cool air in and hot air out. This can be achieved with reflective coverings and weatherstripping on windows, and even an insulated garage door.
Regular maintenance is also crucial for efficiency. Proper installation is also key, ensuring that your unit is running at its best. Consider the energy efficiency ratings, such as EER, SEER, and CEER, to choose a unit that will save energy and reduce costs.
To get the right size unit, always double-check your measurements. This will ensure you don't end up with a unit that's too small or too large for your garage. Measure accurately to avoid any issues.
If you store sensitive items, invest in a more comprehensive cooling system to protect them from temperature fluctuations. Consider how your use of the garage might change over time and choose a unit that can adapt to these changes.
Frequently Asked Questions
A common question about air conditioned garages is, "Do I really need to install a separate AC unit in my garage?" The answer is yes, especially if you plan to use your garage as a workshop or storage space for temperature-sensitive items.
Garage temperatures can easily reach 100°F in the summer, so a separate AC unit is necessary to maintain a comfortable working temperature. In fact, garage temperatures can be up to 20°F higher than the outside temperature.
You'll also want to consider the size of your garage and the type of AC unit you need. A general rule of thumb is to choose an AC unit that's at least 1-2 tons for a standard-sized garage. This will ensure you have enough cooling power to keep your garage comfortable.
If you're planning to use your garage as a living space, such as a home office or gym, you may want to consider installing a more advanced AC system, like a ducted or ductless mini-split system. These systems are more expensive upfront, but they offer better temperature control and air quality.
It's also worth noting that some air conditioned garages may require additional electrical upgrades to support the increased power demand. Be sure to consult with a licensed electrician before making any major changes to your garage's electrical system.
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Frequently Asked Questions
Is it expensive to air condition a garage?
The cost to air condition a garage can range from $500 to $14,500, depending on the mini-split unit and garage specifics. This investment can provide a comfortable and functional space, but it's worth considering the factors that affect the total cost.
What is the cheapest way to AC a garage?
The cheapest way to AC a garage is with a window AC unit, which is a cost-effective and efficient option. It often comes with customizable features to suit your cooling needs.
What is the AC unit in the garage called?
A ductless split air conditioning system is commonly referred to as a mini split AC unit. This type of system is ideal for garage apartments and other spaces without traditional ductwork.
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