What is the difference between a mini-split and central AC?
Central air uses one indoor air handler, often in the attic, garage, or a closet, to push cooled air through ducts to every room. A ductless mini-split connects an outdoor unit to one or more wall-, ceiling-, or floor-mounted indoor heads through a small line set. Each head cools its own room or zone and has its own controls.
When is central AC the better choice?
- Your home already has ductwork in good condition.
- You want even cooling throughout the whole house from one thermostat.
- You prefer equipment hidden away, with only vents visible.
- You’re replacing an existing central system, which is usually the most straightforward install.
When is a ductless mini-split the better choice?
- Additions, converted garages, sunrooms, and bonus rooms the central system doesn’t reach well
- Older homes or buildings without ductwork
- Rooms that are always hotter than the rest of the house
- Households that want different temperatures in different rooms
Our article on how mini-splits provide comfort throughout your house goes deeper into zoning.
Which is more efficient?
Mini-splits avoid duct losses, and in Florida that matters because many ducts run through hot attics where leaks waste cooled air. Most mini-splits use inverter compressors that adjust speed instead of cycling fully on and off, which saves energy and holds a steadier temperature. Many central systems now offer variable-speed inverter technology too. Learn more in what inverter AC is and how it saves energy.
Which handles Florida humidity better?
Both can control humidity well when they’re sized correctly. The problem is oversizing: equipment that’s too large for the space short cycles and leaves moisture behind. That’s true for a central system and for a mini-split head, so a proper Manual J load calculation matters for either choice.
How do the costs compare?
Central AC replacement in Clearwater typically runs $4,800–$12,500 depending on system size, efficiency, ductwork, and installation complexity. Mini-split pricing depends mostly on how many rooms you need to cool, since each zone needs its own indoor head. We give free estimates so you can compare real numbers for your home.
What maintenance does each need?
Central systems need filter changes every 1–3 months plus regular professional service. Mini-split heads have washable filters that should be cleaned regularly, and the indoor heads need periodic professional cleaning to keep mold from building up in our humid climate.
When should you call a professional?
If you’re weighing both options, have a technician look at your home, your ductwork, and the rooms that give you trouble. Our ductless mini-split team can tell you whether a mini-split solves the problem, and our central AC installation specialists can quote a full system for comparison. Call (727) 252-9602.
Frequently Asked Questions
Yes. Many homeowners keep central air for the main house and add a mini-split to a bonus room, garage, or addition the ducts don’t serve well.
Most ductless mini-splits are heat pumps, so they can heat as well as cool, which covers the cool nights we get in Pinellas County.