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DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.
DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.

DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.

SKU: TPHX-18K2V-23S-I+O
$1,849.96

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  • Cooling Capacity: 18000
  • Heating Capacity: 18000
  • SEER2: 23.5
  • Fitting Area: 1000
  • Voltage: 208-230v
  • Refrigerant Type: R454B
  • Maximum Fuse Size: 30A
  • Copper Line Length: 16.4ft
  • Copper Line Size: 1/2 inch and 1/4 inch
  • Climate Range: -22°F - 131°F
See full Tech Specs

Customize your setup

What voltage do I need?

  • The voltage you need depends on your home’s electrical supply and the requirements of your mini split system.
  • Before installation, make sure your home’s available voltage matches the voltage listed for the unit.
  • Most mini split systems require either 115V or 208–230V power.
    Using the wrong voltage can cause performance issues or damage the unit.
  • If you are unsure, consult a licensed electrician before installation.

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30-day money-back guarantee

Free lifetime coverage

Download Remote Control Manual (New Black) (PDF)
AHRI Certificate
The Optima Pro CloudAir Series 18000 BTU ductless mini split is engineered for high-performance year-round comfort with Ultra Hyper Heat technology, soft airflow comfort, and advanced smart controls. Designed for spaces up to 1000 sq. ft., this mini split heat pump delivers efficient cooling and dependable heating operation down to -22°F for reliable comfort even in extreme winter conditions. Featuring soft, indirect airflow technology, it helps reduce direct drafts while maintaining smoother and more even air distribution throughout the room for a more comfortable indoor experience. Operating at sound levels as low as 34 dB in Mute Mode, it is ideal for bedrooms, living rooms, apartments, and home offices where quieter operation matters. Smart features include Alexa and Della+ app compatibility, the “I Feel” temperature sensor, and precise remote climate adjustment for more personalized comfort control.

1. Indoor Unit
2. Outdoor Unit
3. Refrigerant Pipe
4. Drain Lines
5. Remote Control
6. 2 AAA Batteries
7. Screws
8. Anchors
9. Mounting Plate
10. Insulation Foam
11. Wall Sleeve
12. Rubber Feet
13. Plasticine Putty
14. Drain Elbow
15. Wall cap
16. Plastic Wrap
17. Communication Cable
18. Bracket Template

Tech specs

Download User Manual

Indoor Unit Specs

Unit Dimensions (WxDxH):43.18" x 13.07" x 8.74"

Net/Gross Weight:30.9 / 35.2

Outdoor Unit Specs

Unit Dimensions (WxDxH):36.5" x 14.96" x 27.52"

Net/Gross Weight:93.7 / 110.2

System Specs

Cooling Capacity:18000

Heating Capacity:18000

SEER2:23.5

Fitting Area:1000

Voltage:208-230v

Refrigerant Type:R454B

Maximum Fuse Size:30A

Copper Line Length:16.4ft

Copper Line Size:1/2 inch and 1/4 inch

Climate Range:-22°F - 131°F

No.1 Selling Mini Split Brand on Amazon

Optima Pro CloudAir: Engineered for the Absolute Extreme. Comfort Perfected.

When the temperature drops, most heat pumps give up. The Optima Pro CloudAir steps up. Featuring advanced Ultra Hyper Heat technology, it delivers reliable warmth down to -22°F while maintaining 100% heating capacity at 5°F.

Now boasting an elite 25 SEER2 rating and ENERGY STAR® certification, it’s not just a heater—it’s an ironclad guarantee of year-round comfort and maximum energy savings for the harshest environments.

The Pro CloudAir Series also features soft, indirect airflow technology that minimizes harsh direct drafts for a smoother, more comfortable cooling experience.

Powered by MightAir X

Top performance, energy smart design

68% more efficient energy savings

Cleaner air, healthier living

Durable design, lasting comfort

6 modes for max comfort

Auto mode

Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed

Wherever you are

Control your comfort, your way

Set schedules and timers through the Della+ app to match your daily routine.

Which series is right for me?

  • Efficiency
  • HSPF2 Rating (Region IV)
  • Refrigerant
  • Climate Range
  • Energy Rebate

    • DELLA Optima Pro CloudAir Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1000 Sq.Ft.

    • SEER2 23.5
    • 10
    • R454B
    • -22°F - 131°F

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

    • SEER2 23
    • 10
    • R454B
    • -13°F - 131°F
    • Shop Now

    • DELLA Optima Pro Series 18000 BTU 23.5 SEER2 Ultra Hyper Heat Mini-Split AC - Up to 1000 Sq.Ft.

    • SEER2 23.5
    • 10
    • R454B
    • -22°F - 131°F
    • Shop Now

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

    • SEER2 22
    • 9.5
    • R32
    • 5°F - 125°F
    • Shop Now

Frequently asked questions

View our Help Center

Talk to an HVAC expert

Not sure which system is right for your home? Our experts can help with sizing, installation, and product selection.
Technical support: Mon - Fri, 8 AM - 3 PM (PST)
24/7 live chat for general question

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Customer Reviews

Shop accessories

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DELLA Mini Split Line Set
#size_10ft line set 1/2" and 1/4"

DELLA Mini Split Line Set

  • Material: Copper
  • Color: White
  • Nominal Wall Thickness: 0.375 inches

Starting at $89.96

DELLA Rental Install Kit

DELLA Rental Install Kit

  • Pump Type: Rotary Vane
  • Motor Power: 1/3 hp (248W)
  • Flow Rate: 4.5 cfm (7.6 m³/h)

Starting at $300.00

#size_3" 7.5 ft line set cover
#Size_3" 7.5 Ft Line Set Cover

DELLA Mini Split Line Set Cover

  • Material: PVC
  • Temperature Tolerance: -40°F to 140°F
  • Applicable Sizes: 7000 to 24000 BTU / 7000 to 36000 BTU

Starting at $44.96

#size_3" 9 ft line set cover with flexible duct
#Size_3" 9 Ft Line Set Cover with Flexible Duct

DELLA Mini Split Line Set Cover with Flexible Duct

  • Material: PVC
  • Temperature Tolerance: -40°F to 140°F
  • Applicable Sizes: 7000 to 24000 BTU / 7000 to 36000 BTU

Starting at $48.96

DELLA Wall Mounting Bracket for 6000-12000 BTU Single Zone Mini Split

DELLA Wall Mounting Bracket for 6000-12000 BTU Single Zone Mini Split

  • Material: Heavy-duty galvanized steel construction
  • Dimensions: 17.72 L x 15.35 H
  • Compatibility: 6000 to 12000 BTU ductless mini-splits

$39.96

DELLA Wall Mounting Bracket for 6000-36000 BTU Single Zone Mini Split

DELLA Wall Mounting Bracket for 6000-36000 BTU Single Zone Mini Split

  • Material: Heavy-duty galvanized steel construction
  • Compatibility: 6000 to 36000 BTU ductless mini-splits
  • Weight Capacity: Supports up to 485 lbs

$59.96

DELLA Ground Stand Bracket for 9000-18000 BTU Mini Split

DELLA Ground Stand Bracket for 9000-18000 BTU Mini Split

  • Material: Heavy-duty steel
  • Compatibility: 9000 to 18000 BTU mini split units
  • Weight Capacity: Supports up to 396 lbs

$79.96

DELLA Ground Stand Bracket for 9000-45000 BTU Mini Split

DELLA Ground Stand Bracket for 9000-45000 BTU Mini Split

  • Material: Heavy-duty steel
  • Compatibility: 9000 to 45000 BTU mini split units
  • Weight Capacity: Supports up to 440lbs

$99.96

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