Guidebook to Mini-Split Air Conditioners: What They Are and How They Cool

August 18, 2017

The majority of homeowners are most familiar with central air conditioners.

Mini-split systems are a kind of ductless heating and cooling. Rather than delivering conditioned air to the entire home through a network of air ducts, they heat and cool one room at a time. This provides more advanced temperature control, increasing comfort and energy efficiency.

How Do Mini-Split Air Conditioners Work?

Mini-splits are most similar to heat pumps in the way they operate. Both styles of equipment deliver electric cooling, the same as an air conditioner. This uses refrigerant to extract heat from within a building and issuing that heat outside. Then, a reversing valve allows the system to run backward, warming your residence in the winter by extracting heat from outdoor air and depositing it inside.

The largest difference between mini-splits and heat pumps is that mini-split systems don’t need ductwork. Instead, the indoor unit has a built-in air handler, which fits directly on the wall or ceiling in the room you are looking to heat and cool. Copper tubes, wiring and a condensate drain line link to an outdoor condensing unit through a little conduit in the wall. This exterior component looks like an air conditioner or heat pump condenser.

Several indoor units can link to one outdoor condenser, enabling you to heat and cool your total residence with this system if desired. This set-up also makes zoning practical, a very coveted feature that lets you determine when, where and how much you heat and cool distinct spaces.

Mini-split basics infographic Miami 

Is a Ductless Mini-Split Right for My Home?

Mini-splits are a good option for many households. Consider these reasons why using a ductless mini-split might be right for your needs:

  • You can heat and cool a complete house that doesn’t have existing ductwork.
  • You can switch off the heat and air conditioning in unoccupied spaces to save on your heating and cooling expenses.
  • Mini-splits deliver added heating and cooling for areas that are tricky to keep cozy.
  • Use a ductless system to heat and cool a home addition or enclosed porch without the expense of putting in ductwork or the annoyance of having window AC units.
  • Mini-splits are the perfect choice for spaces where ductwork is impractical. A few examples are historic houses, tiny homes, temperature controlled sheds or workshops, or garage conversions.
  • What are the Pluses of a Mini-Split System?

    Ductless mini-splits are very effective systems, but you might still be wondering why you would want to install it over a traditional furnace and air conditioner. Here’s why more Miami homeowners are using ductless mini-splits:

    • Avoid the drawbacks of ductwork: By providing heated and cooled air directly, air doesn’t pass through holey air ducts on its way to each room. This can save you nearly 30 percent on your heating and cooling expenses. Also, if your home doesn’t already include ducts, you avoid the inconvenience and expense that comes with putting them in.
    • Find the ideal setting for each room: With zoned heating and cooling from a ductless mini-split, you can keep an office refreshing while maintaining a warm nursery—all while maximizing energy efficiency.
    • Use less money and energy by not heating and cooling vacant spaces: Shutting supply registers in a central HVAC system can throw it off kilter, putting stress on the equipment and canceling any likely savings. But with detached air handlers in all rooms, you can heat and cool specific areas only when you need them.

    Depend on Service Experts Heating & Air Conditioning to Install Your Mini-Split Air Conditioner

    The same as standard HVAC systems, ductless mini-splits require meticulous sizing and Expert installation to deliver the best performance. Our knowledgeable mini split installers in Miami can help you figure out if a mini-split system will meet your needs. We can then support you with finding the precise equipment size and model to make your house as comfortable and energy-efficient as possible.

    For added info, or to get an appointment, get in touch with Service Experts Heating & Air Conditioning at 305-440-1505. You can also schedule an appointment online.

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