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Mini Splits for 500–1,000 Sq. Ft.

Use 12,000 BTU for one room around 500 sq. ft. Choose 18,000 BTU for a larger open living area up to 1,000 sq. ft. If doors separate the rooms, use individual indoor units instead of relying on one wall unit.

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Rebates for ZIP
DELLA Motto Series 18000 BTU 19 SEER2 Mini Split Heat Pump AC – Up to 1000 Sq.Ft.
DELLA Mini Split AC 24/7 Support

DELLA Motto Series 18000 BTU 19 SEER2 Mini Split Heat Pump AC – Up to 1000 Sq.Ft.

  • Cooling Capacity: 18000
  • Heating Capacity: 18700
  • SEER2: 19

$979.96

DELLA 16,000 BTU 20.5 SEER2 Ceiling Cassette Ductless Mini Split AC - Up to 1000 Sq.Ft.

DELLA 16,000 BTU 20.5 SEER2 Ceiling Cassette Ductless Mini Split AC - Up to 1000 Sq.Ft.

  • Cooling Capacity: 16000
  • Heating Capacity: 18000
  • SEER2: 20.5

Starting at $1,784.96

DELLA Econo Series 11500 BTU 17 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.
DELLA Wall Mounted Mini Split AC

DELLA Econo Series 11500 BTU 17 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.

  • Cooling Capacity: 11500
  • Heating Capacity: 11500
  • SEER2: 17

$679.96

DELLA Umbra Series 12000 BTU 17 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.
DELLA Black Mini Split AC 24/7 Support

DELLA Umbra Series 12000 BTU 17 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.

  • Cooling Capacity: 12000
  • Heating Capacity: 12000
  • SEER2: 17

$799.96

DELLA Serena Series 18000 BTU Dual Zone Mini Split AC (7K + 7K) - Up to 600 Sq.Ft.
DELLA Wall Mounted Mini Split AC
Sold out

DELLA Serena Series 18000 BTU Dual Zone Mini Split AC (7K + 7K) - Up to 600 Sq.Ft.

  • Voltage: 230 Volts
  • Refrigerant: R-32
  • Seasonal Energy Efficiency Ratio (SEER): 22

$1,829.96

DELLA Mini Split AC System Kit

DELLA Vario Series 12000 BTU 20.5 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.

  • Cooling Capacity: 12000
  • Heating Capacity: 12000
  • SEER2: 20.5

$799.96

DELLA Serena CloudAir Series 18000 BTU 22 SEER2 Mini Split Heat Pump AC - Up to 1000 Sq.Ft.

DELLA Serena CloudAir Series 18000 BTU 22 SEER2 Mini Split Heat Pump AC - Up to 1000 Sq.Ft.

  • Cooling Capacity: 18000
  • Heating Capacity: 18000
  • SEER2: 22

$1,049.96

DELLA Umbra Series 12000 BTU 20 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.
DELLA Black Mini Split AC 24/7 Support

DELLA Umbra Series 12000 BTU 20 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.

  • Cooling Capacity: 12000
  • Heating Capacity: 12000
  • SEER2: 20

$849.96

DELLA mini split air conditioner single zone

DELLA Optima Pro CloudAir Series 12000 BTU 25 SEER2 Ultra Hyper Heat Mini Split AC - Up to 550 Sq.Ft.

  • Cooling Capacity: 12000
  • Heating Capacity: 12000
  • SEER2: 25

$1,249.96

DELLA Serena Series 18000 BTU Dual Zone Mini Split AC (7K + 12K) - Up to 850 Sq.Ft.
DELLA Wall Mounted Mini Split AC

DELLA Serena Series 18000 BTU Dual Zone Mini Split AC (7K + 12K) - Up to 850 Sq.Ft.

  • Voltage: 230 Volts
  • Refrigerant: R-32
  • Seasonal Energy Efficiency Ratio (SEER): 22

$1,909.96

DELLA 18000 BTU 20.5 SEER2 Floor Mounted Mini Split AC - Up to 1000 Sq. Ft.
DELLA mini split floor ceiling unit complete

DELLA 18000 BTU 20.5 SEER2 Floor Mounted Mini Split AC - Up to 1000 Sq. Ft.

  • Cooling Capacity: 18000
  • Heating Capacity: 18000
  • SEER2: 20.5

Starting at $1,684.96

DELLA Optima CloudAir Series 18000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 1000 Sq.Ft.

DELLA Optima CloudAir Series 18000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 1000 Sq.Ft.

  • Cooling Capacity: 18000
  • Heating Capacity: 19000
  • SEER2: 23

Starting at $1,434.96

Guides for every step of comfort

See all resources
Family room mini split sizing
  • Buyer's Guide

What Size of Mini Split Air Conditioner Do I Need? 2026 Updated

Read article
Mini-Split Indoor Unit Installation
  • Installation & Usage Tips

Cost to Install Mini Split AC System in 2026

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