Pioneer® Quantum Hyperformance™ 18,000 BTU 23.5 SEER2 230V High-Wall Ductless Mini Split Air Conditioner Inverter Heat Pump Full Set (Energy Star)

Upgrade your comfort with the Pioneer® Quantum Hyperformance™ 18,000 BTU Mini Split System—a powerful, energy-efficient ductless air conditioner and heat pump combo designed for year-round performance. Built with advanced inverter technology and rated at an impressive 23.5 SEER2, this system delivers maximum cooling and heating efficiency while reducing energy costs.

Whether you're upgrading your home, office, or commercial space, this high-wall ductless mini split AC provides fast, quiet, and reliable climate control—even in extreme temperatures.

Summary at a Glance

• Ultimate Efficiency Quantum Hyperformance™ Ductless Mini Split Heat Pump System
• Cooling capacity: 18,000 BTU/H with 23.5 SEER2 / 12.5 EER2 efficiency
• Heating capacity: 18,000 BTU/H with 10 HSPF2 / 3.64 COP2 efficiency
• Voltage: 208/230V, 60Hz, 1Ph
• High Wall-Mounted Ductless Air Conditioning & Heating System
• Wi-Fi Enabled and Controllable By Smartphone via the Free Pioneer Airlink App
• Variable-Speed DC Inverter Driven Performance
• Factory-Precharged with Environmentally Friendly R454b Refrigerant
• Extreme Climate Operation (As low as -22°F in Heating / As high as 131°F in Cooling)

Key Features & Benefits

Powerful Cooling & Heating Performance

• 18,000 BTU capacity ideal for medium to large rooms
• Advanced Hyper Heat Pump technology for efficient heating in cold climates
• Fast cooling and heating for immediate comfort

Ultra Energy Efficient (Save on Bills)

• 23.5 SEER2 rating for superior energy savings
• ENERGY STAR® certified for eco-friendly operation
• Inverter compressor reduces power consumption

Whisper-Quiet Operation

• Ultra-silent indoor unit for bedrooms, offices, and living spaces
• Enjoy peaceful comfort without noise disruptions

Complete Installation Kit Included

• Full set includes indoor unit, outdoor condenser, and accessories
• Designed for easy installation and setup

Smart Climate Control

• Precise temperature control for consistent comfort
• Multiple modes: cooling, heating, dehumidifying, and fan

Perfect For

• Homes & apartments
• Offices & commercial spaces
• Garages, studios, and workshops
• Renovations and ductless upgrades

Why Buy This Mini Split System?

• Lower your energy bills with high-efficiency inverter technology
• Enjoy year-round comfort with cooling + heating in one system
• Quick and easy installation with included full set
• Trusted performance from Pioneer® mini split systems
• Ideal for ductless air conditioning solutions
• Heat Pump with Cooling, Heating, Dry, and Ventilation Modes
• Dual-Drainage Ports
• Washable, Reusable Air Filters
• Dual-Axis Airflow (Motorized Up-Down and Left-Right Louvers
• Functional Remote with:
  • ECO and SLEEP Modes, for Energy-Conservation
  • Timer On/Off Control
  • TURBO, for Times of High-Demand
  • Self-Clean Cycle
  • MEMORY, to Recall Favorite Settings
  • IFEEL, to Detect and Adjust to Local Temperature

Technical Information & Performance

• AHRI Certificate
• Energy Guide
• Submittal Sheet

• System Kit

  • Power Supply: 208~230V, 60Hz, 1Ph
  • Cooling Rated Capacity: 18,000 BTU/h
  • Cooling Capacity Range: 4,100~19,400 BTU/h
  • Cooling SEER2: 23.5 BTU/W.h
  • Cooling EER2: 12.5 BTU/W.h
  • Heating Rated Capacity: 18,000 BTU/h
  • Heating Capacity Range: 4,100~21,400 BTU/h
  • Heating HSPF2 (Region IV/V): 10.0 / 8.8 BTU/W.h
  • Heating C.O.P.2 (47°F/5°F): 3.64 / 1.8 W/W
  • Refrigerant Type: R454b
  • Recommended Room Size: 500~750 sq ft
  • Minimum Room Size: 52 sq ft
  • Piping Diameter: 1/2" (Gas) / 1/4" (Liquid)
  • AHRI Reference: 217048756

• Indoor Unit

  • Part Number: WT018GLSI25HLH
  • Air Flow (Turbo/Hi/Med/Lo/Mute): 735 / 676 / 529 / 423 / 394 CFM
  • Sound Level (Turbo/Hi/Med/Lo/Mute): 48 / 45 / 40 / 37 / 34 dB(A)
  • Product Dimensions (WDH): 43"-1/8 x 8"-3/4 x 13" Inches
  • Carton Dimensions (WDH): 45"-7/8 x 11"-5/8 x 16" Inches
  • Net / Gross Weight: 30.9 / 35.3 lbs

• Outdoor Unit

  • Part Number: YN018GLSI25RPH
  • Breaker Needed: 30A (double-pole)
  • Sound Level: 58 dB(A)
  • Net Dimensions (WDH): 36"-1/2 x 15" x 27"-1/2 Inches
  • Carton Dimensions (WDH): 37"-3/8 x 16"-1/2 x 28"-7/8 Inches
  • Net / Gross Weight: 93.7 / 102.5 lbs

Upgrade Your Comfort Today

Don’t settle for outdated HVAC systems—experience next-level efficiency, quiet performance, and powerful climate control with the Pioneer Quantum Hyperformance™ Mini Split.

Order now and enjoy fast shipping, energy savings, and reliable comfort all year long!

Dimension Chart