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System type

Central Air Conditioning

Central air conditioning uses an outdoor condenser unit and an indoor evaporator coil, working together with the home's ductwork, to cool the entire house from a single thermostat. It's the standard cooling setup for most homes with existing ducted heating, since it can share the same duct system.

Labeled cross-section of a split HVAC system showing the outdoor condenser and indoor components Condenser & compressor — pressurizes refrigerant Refrigerant lines Evaporator coil — absorbs indoor heat Blower motor — moves air through ducts Supply duct — carries conditioned air to rooms Thermostat — sets the target temperature

Good fit for

  • Homes that already have ductwork in place, typically from a furnace or air handler
  • Households that want one thermostat controlling the whole home
  • Climates with a clearly defined cooling season
  • Replacing an aging central system with newer, more efficient equipment

Worth considering

  • Efficiency is rated by SEER2; higher ratings generally cost more upfront but less to run over time
  • Correct sizing matters more than horsepower alone — oversized units cycle too often and can leave the home feeling clammy
  • Ductwork condition affects how much of the cooled air actually reaches each room
  • Outdoor unit placement affects both efficiency and noise near windows or patios

Questions to ask a company

  • What SEER2 rating would you recommend for this climate and home?
  • Is my existing ductwork suitable for the new equipment, or does it need work?
  • How did you size this system for my home specifically?
  • What's the expected noise level of the outdoor unit at this location?

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