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When it comes to heating and cooling, size matters – but that doesn’t mean bigger is always better. While a larger unit will be more powerful, that can easily become a problem if it is too large for your home. An expertly executed air conditioning installation will involve a thorough analysis of your home, including its size, layout, and even the number of windows.
If your air conditioning system is too large for your home, it will tend to short cycle. This means it will turn on and off more rapidly than normal. This presents a number of problems:

  • Inefficient operation: When cycling on and off, the system will use energy less efficiently. If it cycles too often, it will end up wasting energy, leading to higher energy bills.
  • Rapid wear: The process of turning on and off also puts extra strain on the various moving parts within a unit, causing it to wear out faster and require maintenance sooner.
  • Poor temperature control: An oversized AC unit will cool your home very rapidly – too rapidly, in fact. This will cause some inconsistencies in temperature and reduce overall comfort level.

A properly sized AC unit will operate far more efficiently than an overlarge one, and it will keep your home much more comfortable in the process.

To make sure your unit is properly sized for your home, it is vital to have a certified HVAC technician come for an inspection. A properly trained technician will follow certain professional guidelines for evaluating your home’s exact heating and cooling needs, thus ensuring the correct unit can be selected. Some of the items the technician will need to take into account include:

  • Square footage of each room
  • Distance of each room from the unit
  • Regional climate
  • Placement of windows
  • Insulation
  • Height of the ceiling

The formulas used to determine how each of these will influence your home’s AC requirements come from the Manual J Load Calculations used by heating and cooling technicians. When implemented properly, these can ensure you get the right sized unit installed in your home.
When you’re ready to get a new air conditioning unit installed, make sure to give us a call. We can help you figure out the perfect system for your home.

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