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Cooper & Hunter

12,000 BTU 115V Ductless Mini Split AC Wall Mounted MIA Series Heat Pump

Cooper & Hunter MIA NY Series: 12,000 BTU Ductless Mini Split Air Conditioner and Heat Pump Stay comfortable all year round with the Cooper & Hunter 12,000 BTU Ductless Mini...
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$863.04
R32
White ductless mini-split air conditioner from Olmo Sierra Series inverter heat pump
OLMO

36,000 BTU 230V Ductless Mini Split AC Wall Mounted OLMO Sierra Series Heat Pump

  Click Here to see the OLMO Sierra Series Booklet INCLUDED IN YOUR ORDER: Olmo Single Zone Ductless Mini Split System 36,000 BTU Inverter Heat Pump OUTDOOR UNIT = 36,000...
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$1,949.00
R454B
Air conditioning system of 18,000 BTU 230V Ducted Mini Split AC from Cooper & Hunter Sophia Series
Cooper & Hunter

18,000 BTU 230V Ducted Mini Split AC Concealed Duct Heat Pump

Cooper & Hunter 18,000 BTU Mini Split Air Conditioner & Heat Pump Experience year-round comfort with the Cooper & Hunter Sophia Series 18,000 BTU Mini Split Air Conditioner and Heat...
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$2,155.68
R454B
White ductless mini-split air conditioner from Cooper & Hunter for universal floor ceiling use
Cooper & Hunter

36,000 BTU 230V Ductless Mini Split AC Light Commercial Universal Floor/Ceiling Console Heat Pump

  PLEASE NOTE THE DROPDOWN MENU! SINGLE ZONE PRICES DEPEND ON THE LENGTH OF THE INSTALLATION KIT.      INCLUDED IN YOUR ORDER:    Cooper & Hunter Light Commercial Single Ductless...
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$3,565.44
R32
White split air conditioner wall mounted Olmo Sierra series 230V ductless mini split
OLMO

12,000 BTU 230V Ductless Mini Split AC Wall Mounted OLMO Sierra Series Heat Pump

  Click Here to see the OLMO Sierra Series Booklet INCLUDED IN YOUR ORDER: Olmo Single Zone Ductless Mini Split System 12,000 BTU Inverter Heat Pump OUTDOOR UNIT = 12,000...
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$731.46
R32
White ductless mini split AC wall mounted Olmo Sierra 9000 BTU 115V heat pump
OLMO

9,000 BTU 115V Ductless Mini Split AC Wall Mounted OLMO Sierra Series Heat Pump

  Click Here to see the OLMO Sierra Series Booklet INCLUDED IN YOUR ORDER: Olmo Single Zone Ductless Mini Split System 9,000 BTU Inverter Heat Pump OUTDOOR UNIT = 9,000...
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$694.96
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This online collection showcases a complete range of high-efficiency ductless air conditioners designed for optimal comfort and energy performance. The 20 SEER Ductless Mini Split Systems featured here deliver exceptional heating and cooling efficiency for both residential and light commercial environments. Engineered for modern living, these inverter-driven units balance powerful temperature control with low energy consumption and whisper-quiet operation. Their ductless design simplifies installation and adapts easily to different layouts — ideal for homes, offices, studios, and renovation projects. Each model emphasizes energy savings, durability, and advanced air purification, ensuring long-term reliability and healthier indoor air. Available in wall-mounted, floor-mount, and concealed-duct styles, these systems blend seamlessly with any décor while promoting sustainability and lower utility costs.

🤔 What is SEER?

SEER (Seasonal Energy Efficiency Ratio) measures how efficiently an air conditioner or mini-split cools over an average season. It’s calculated by dividing the total cooling output during the cooling season by the total electric energy input. The higher the SEER, the greater the energy efficiency — meaning lower electricity bills and a smaller environmental footprint. Most modern 20 SEER systems exceed minimum standards, featuring inverter technology for consistent comfort, reduced noise, and extended equipment life. Always consider the SEER rating when choosing a mini-split to ensure long-term energy savings.

🎯 Looking for Great Deals on 20 SEER Mini-Split Systems?

Browse our SALE Collection for top-rated inverter-driven ductless mini-splits, heat pumps, and energy-efficient AC units at special prices!

  • ✅ Up to 50% more efficient than older HVAC models
  • ✅ Trusted brands like Cooper & Hunter and Olmo with inverter compressors
  • ✅ ENERGY STAR® qualified & rebate-eligible systems for 2025
👉 Shop Now →

FAQ

Is a 20 SEER mini split efficient enough for most homes?

Absolutely — a 20 SEER system ranks among the most efficient HVAC options available in 2025. It’s 40–50% more efficient than legacy 13 SEER units and often qualifies for ENERGY STAR® rebates. Expect quieter operation, more consistent temperatures, and lower utility bills.

What are the best 20 SEER ductless systems right now?

Customer favorites include the Cooper & Hunter Olivia 18K BTU (20 SEER, Wi-Fi, Energy Star) and the Olmo Sierra 12K BTU Inverter System. Both deliver quiet, reliable comfort with R-410A refrigerant and are available in complete kits at MiniSplits4Less.com.

Who benefits most from a 20 SEER system?

Perfect for homeowners in hot or humid regions cooling 700–1,500 sq ft. These systems excel for daily use and offer smart home connectivity, exceptional humidity control, and nearly silent operation.

Are 20 SEER units worth the investment?

Yes — especially for frequent users or areas with high electric rates. Their long-term energy savings, superior comfort, and enhanced air quality make them a smart upgrade. Each kit at MiniSplits4Less.com includes AHRI certification for easy rebate applications.