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What To Do If my AC Unit Is Too Small?




If you’re feeling the heat and your air conditioning unit just isn’t cutting it, there are a few steps you can take to cool down your home.

If your AC is too small for the space it is cooling, you may consider to:

1. Assess the situation: Determine if the AC unit is indeed too small by considering factors such as room size, insulation, and sun exposure. Check the BTU (British Thermal Unit) rating of your AC and compare it to the recommended BTU for your room size.

2. Improve insulation: Ensure that your space is well-insulated to reduce heat gain. Seal gaps around windows and doors, add weatherstripping, and consider upgrading your insulation.

3. Block sunlight: Reduce heat gain from sunlight by using curtains, blinds, or shades on windows, especially those facing east and west.

4. Use fans: Supplement your AC with fans to help circulate cool air more effectively throughout the space.

5. Reduce heat sources: Turn off or unplug heat-generating appliances and electronics when not in use. Replace incandescent light bulbs with energy-efficient LEDs or CFLs.

6. Regular maintenance: Clean or replace your AC’s filter regularly and ensure the unit is functioning efficiently.

7. Consider upgrading: If the above steps do not provide sufficient cooling, consider upgrading to a larger AC unit with the appropriate BTU rating for your space. Consult with a professional HVAC technician for recommendations and installation.

Remember that an undersized AC unit will work harder and consume more energy to cool the space, which may result in higher energy bills and reduced lifespan of the unit.**

First, it’s important to understand why your AC may not be working effectively. An AC that is too small for the space it’s cooling will struggle to keep up with demand, leaving you feeling uncomfortable and sticky in hot weather.

Fortunately, there are some simple strategies you can use to help boost your AC’s performance and get your home feeling cooler in no time. From optimizing airflow to adding insulation or even upgrading your system altogether, taking action now can help you avoid a long, hot summer of discomfort.

So whether you’re dealing with an older unit that needs an upgrade or simply struggling with insufficient cooling power, read on for some helpful tips on how to tackle this common household problem.

Assessing The Situation

If you find yourself in a situation where your AC unit is too small, the first step is to assess the situation.

Start by evaluating the size of your room or property and comparing it with the cooling capacity of your unit.

A common mistake people make is buying a smaller AC unit, thinking that it will save them money on energy bills.

However, this can lead to inefficient cooling and increased energy consumption as the unit struggles to keep up with demand.

Another factor to consider is the age of your AC unit.

If it’s an older model, it may not be able to handle the demands of cooling a larger space efficiently.

In this case, upgrading to a newer and more powerful model may be necessary for optimal performance.

By assessing the situation and identifying any underlying problems, you can take steps towards improving efficiency and ensuring that your space stays cool during hot weather.

Improving Efficiency

If your AC unit is too small for your space, it may struggle to keep up with demand and provide adequate cooling. This can result in a less comfortable living environment and increased energy costs.

However, there are several ways to improve the efficiency of your existing unit before resorting to purchasing a larger one.

Firstly, ensure that your AC unit is properly maintained by cleaning or replacing the air filter regularly and scheduling professional tune-ups as needed.

Secondly, consider improving insulation in your home to reduce heat gain and loss. This can include adding weatherstripping to doors and windows, sealing air leaks, and adding insulation to walls and attics.

Lastly, using strategic shading techniques such as installing blinds or curtains can also help reduce heat gain during the hottest parts of the day.

To improve the efficiency of an undersized AC unit:
1. Keep up with regular maintenance including air filter changes and professional tune-ups.

2. Increase insulation in your home to reduce heat gain/loss.

3. Use shading techniques such as blinds or curtains to reduce heat absorption.

While these steps may help improve the performance of an undersized AC unit, ultimately finding a larger unit that is appropriately sized for your space may be necessary for optimal comfort and efficiency.

Finding A Larger Unit

If you have determined that your AC unit is too small for the square footage of your home, it may be time to start looking for a larger unit.

Before making any purchases, it is important to properly measure the square footage of your home and compare it to the recommended BTUs (British Thermal Units) needed for an effective cooling experience.

Once you have determined the appropriate size for your new AC unit, consider purchasing from a reputable brand and consulting with professionals in the HVAC industry for recommendations.

A larger unit will not only keep your home at a comfortable temperature, but it can also lead to increased energy efficiency and lower utility bills in the long run.

When considering upgrading to a larger unit, it is important to note that professional installation is necessary.

Attempting to install an AC unit on your own can lead to errors and potential hazards.

In the next section, we will discuss the importance of hiring a professional for proper installation and maintenance of your new AC unit.

Professional Installation

Professional Installation

If you find that your AC unit is too small for your space, don’t panic.

There are still options available to keep you cool and comfortable.

However, it’s important to seek the help of a professional installation company to ensure that you are getting the best solution for your specific situation.

When consulting with a professional installation company, there are two key factors to consider: sizing and efficiency.

The first step will be determining the appropriate size of an AC unit for your space.

A reputable installer will take into account the square footage of your home, as well as any unique features such as high ceilings or large windows.

Additionally, they can provide guidance on choosing a unit with optimal energy efficiency ratings and suggest ways to improve the overall energy performance of your home.

To achieve maximum comfort in your home, it’s crucial to have the right-sized AC unit installed by a team of professionals who understand how to optimize its efficiency.

Therefore, when making decisions about installing or replacing an air conditioning system, always seek out experienced professionals who can provide expert advice and quality service.

By doing so, you’ll not only stay cool but also save money in the long run by keeping your energy bills under control.


In conclusion, if your AC is too small for your home or space, there are some steps you can take to improve the performance and comfort level.

First, it’s important to assess the situation by determining the size and needs of your space. This will help you determine whether improving efficiency or finding a larger unit is necessary.

If improving efficiency is the solution, there are several ways to do this such as adding insulation, sealing air leaks, and regularly cleaning or replacing filters.

On the other hand, if a larger unit is needed, it’s important to consult with a professional who can help you find the right size and type of AC unit for your space.

Lastly, it’s crucial to have any new or replacement AC units professionally installed.

This ensures that it’s done correctly and safely, which can prevent further damage or issues down the line.

By taking these steps, you can ensure that your AC system runs smoothly and effectively in providing cool air for your home or space.

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