Debunking Common Commercial Air Conditioning Myths.

In the dynamic world of commercial spaces, maintaining a comfortable indoor environment is crucial for both employees and customers. However, misconceptions about commercial air conditioning systems abound, leading to inefficient use, unnecessary expenses, and even subpar performance.

In this blog, we will debunk some prevalent myths surrounding commercial air conditioning, shedding light on the facts to help businesses make informed decisions.

Myth 1: Lowering the Thermostat Quickly Cools the Space Faster.

One of the most common misconceptions is the belief that setting the thermostat to an extremely low temperature will expedite the cooling process.

In reality, air conditioning systems operate at a consistent rate, and adjusting the thermostat to an excessively low temperature only wastes energy. It won’t cool the space any faster but will result in higher energy bills and potential strain on the system.

Our Solution: Set the thermostat at a comfortable temperature, allowing the system to work efficiently without unnecessary energy consumption. Discover our Building Management System (BMS) blog which underlines the importance of integrating HVAC and BMS to optimise building performance!

Myth 2: Turning Off the System When Leaving Saves Energy.

Some businesses think that turning off the air conditioning system when leaving the premises is a cost-effective measure. However, restarting the system requires more energy than maintaining a consistent temperature.

Turning off the system might lead to discomfort for employees returning to a hot or cold environment and can even compromise indoor air quality. Now obviously, if your staff are leaving the building for a long duration such as Christmas break, it’s wise to turn the system off but not for a short period of time.

Our Solution: Invest in programmable thermostats or smart HVAC systems that allow for temperature adjustments during non-working hours, ensuring a balance between energy efficiency and occupant comfort.

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Myth 3: Regular Maintenance Is Unnecessary.

Another prevalent myth is that commercial air conditioning systems do not require regular maintenance. Neglecting routine upkeep can lead to decreased efficiency, increased energy consumption, and a higher risk of system failures.

Regular maintenance helps identify potential issues early on, ensuring optimal performance and extending the lifespan of the equipment. We offer both planned and reactive maintenance but would always recommend having a routine plan in place to save on down time and extra costs which could be detrimental!

Our Solution: Implement a proactive maintenance schedule, including filter replacements, coil cleaning, and inspections, to keep the system running smoothly and prevent costly repairs.

Myth 4: All Commercial Spaces Require the Same Type of System.

Assuming that all commercial spaces have identical air conditioning requirements is a misconception that can lead to suboptimal performance and energy wastage.

Different businesses have varying cooling needs based on factors such as size, occupancy, and equipment heat output. A one-size-fits-all approach may result in inefficient cooling and unnecessary expenses.

Our Solution: Consult with HVAC professionals to assess the specific needs of your commercial space and invest in a tailored air conditioning system that meets those requirements. We will distinguish a plan during our site survey that will have you and your building at the forefront of any solutions/systems we think are applicable.

Myth 5: Bigger is Better.

One common misconception is that a larger commercial air conditioning unit will cool a space faster and more effectively. In reality, an oversized unit can lead to inefficient operation, increased energy consumption, and uneven cooling. Overall, not the best for effective business operations!

Our Solution: Similarly to myth number 4, you must consult your HVAC specialist and have your commercial air conditioning system sized correctly for the most effective operation. Conducting a load calculation to determine the appropriate capacity needed for the building is a must!

Myth 6: Closing Windows and Doors Completely Increases Efficiency.

While it’s generally a good idea to keep windows and doors closed to maintain indoor temperature, completely sealing off a building can lead to poor indoor air quality. Proper ventilation is essential for indoor air quality and the overall comfort of building occupants.

Our Solution: Maintain a balance between energy efficiency and indoor air quality by ensuring proper ventilation. Use energy recovery ventilators (ERVs) or heat recovery ventilators (HRVs) to introduce fresh air while recovering energy from exhaust air. Implement air quality monitors to ensure indoor air quality meets acceptable standards.


Dispelling these common myths about commercial air conditioning is crucial for businesses aiming to create a comfortable and energy-efficient indoor environment. By embracing accurate information and adopting smart practices, businesses can not only enhance the longevity and performance of their HVAC systems but also contribute to sustainability efforts and cost savings.

If you are looking for a reliable installer and maintenance provider, Mid-Tech Services has been designing and installing HVAC systems for industrial, commercial, and residential properties for over 15 years. Our wealth of experience means we understand the variety and scope of various premises and their requirements. Our expert team is always hands-on to help you through every step of the process. Contact us to learn more about our systems by contacting our friendly expert team today. You will be thanking us in your dreams!

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