Debunking Common Air Conditioning Myths


When it comes to air conditioning systems, there are numerous myths and misconceptions that tend to circulate. At Thompson Plumbing, Heating & AC, we understand the importance of dispelling these myths to ensure our customers receive accurate information and make informed decisions. In this blog post, we’ll address some of the most common myths surrounding air conditioner repair, service, and installation.

Myth #1: Bigger is Always Better

One prevalent myth is that a larger air conditioning unit is always better at cooling your home. However, this is not necessarily true. An oversized unit may cool your space quickly, but it will cycle on and off more frequently, leading to inefficient operation and potential moisture issues. The key is to have a properly sized unit that matches the cooling load of your home.

Myth #2: Closing Vents Saves Energy

  • Some homeowners believe that closing vents in unused rooms can save energy and reduce cooling costs.
  • However, this practice can actually disrupt the balanced airflow in your HVAC system, causing it to work harder and potentially leading to premature failure.
  • It’s better to keep all vents open and adjust the thermostat to maintain a comfortable temperature throughout your home.

Myth #3: Air Conditioners Don’t Need Regular Maintenance

Many people assume that air conditioning units don’t require regular maintenance as long as they’re running. This is a dangerous misconception. Neglecting routine maintenance can lead to decreased efficiency, higher energy bills, and a shorter lifespan for your unit. Regular professional maintenance, including cleaning and inspection, can help identify and address potential issues before they become major problems.

Myth #4: Leaving the AC Running All Day Saves Energy

Some homeowners believe that leaving their air conditioner running all day while they’re away from home is more energy-efficient than turning it off and on. However, this is not true. Modern air conditioning systems are designed to cool your home efficiently when needed. Leaving the unit running continuously can waste energy and increase your utility bills.


At Thompson Plumbing, Heating & AC, we believe in providing our customers with accurate information to help them make informed decisions about their HVAC systems. By debunking these common myths, we hope to empower homeowners to make choices that promote energy efficiency, cost-effectiveness, and optimal comfort in their homes.

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Liyana Parker

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