Debunking the Myth Surrounding AC Unit Efficiency


When it comes to air conditioning units, there are several myths and misconceptions that often circulate, leading to misinformation and poor decision-making. At Katham Industries, we believe in providing our customers with accurate information to help them make informed choices. In this blog post, we’ll debunk a common myth about AC unit efficiency.

The Myth: Bigger is Always Better

One prevalent myth is that larger air conditioning units are more efficient and better at cooling your space. However, this is not entirely true. While a larger unit may cool your space faster, it does not necessarily mean it’s more efficient or cost-effective in the long run.

The Reality: Proper Sizing is Crucial

The key to an efficient and cost-effective air conditioning system lies in proper sizing. An oversized unit will cool your space quickly but will cycle on and off more frequently, leading to higher energy consumption and increased wear and tear on the system. Conversely, an undersized unit will run constantly, struggling to maintain the desired temperature and consuming more energy.

To ensure optimal efficiency, it’s essential to have a professional HVAC technician perform a load calculation to determine the appropriate size for your space. Factors such as square footage, insulation, windows, and occupancy levels all play a role in determining the right size.

Additional Tips for Improved Efficiency

  • Regularly change or clean air filters to maintain proper airflow.
  • Ensure proper insulation and sealing of your home or building to prevent cool air from escaping.
  • Consider investing in a programmable thermostat to better regulate temperatures when the space is occupied or unoccupied.
  • Schedule regular maintenance and tune-ups to keep your system running at peak efficiency.


At Katham Industries, we understand the importance of dispelling myths and providing accurate information to our customers. By debunking the myth that bigger is always better when it comes to air conditioning units, we hope to empower you to make informed decisions that will lead to improved efficiency, lower energy costs, and a more comfortable living or working environment.