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A Good Rule of Thumb for When to Replace Your Air Conditioner


There are numerous “rules of thumb” when it comes to your home, including for the installation of appliances and whole-home systems. While rules of thumb can be good for small things like installing a window shade, they may not be great for bigger things, like replacing your air conditioning in Doral. This is because you may miss the inclusion of some important factors necessary for installing the right system for your home. The best rule of thumb you can use for installing a new air conditioner is to work with a trained professional from start to finish. Working with an expert helps ensure that you’ll find an air conditioning system that fits the needs of you and your home for the long-term, and the experts at Air On Demand can help you with every step.


Sizing is one of the most important aspects of any home system installation. Installing an air conditioning system that is too big can leave you feeling cold and clammy, and one that is too small may not cool your home adequately. Additionally, both situations put a great deal of stress and wear on your system, which can result in malfunction and breakdown. Performing a cooling load calculation is critical to determining what size AC you need, and there are several factors to consider aside from square footage, including:

  • Orientation of your home
  • Number of occupants
  • Floor plan
  • Number of rooms and stories
  • Number and types of windows and doors
  • Insulation levels
  • Daytime heat gain

Type of System

Once you know what size AC you need to cool your home, you have a decision to make on the type of system you want. Some current options are:

  • Heat pumps
  • Traditional split-systems
  • Ductless systems

Understanding how each type works and the benefits each can offer you is important to making an informed decision about your AC replacement.

Rules of thumb can be helpful for small household tasks, but when it comes to the installation of a new air conditioning system in Doral, it’s best to use the assistance of a trained expert. If you are ready for a new AC system, call Air On Demand and schedule an appointment with one of our installation experts.