Large Room Window AC Oahu
18,000 BTU & 23,500 BTU LG Dual Inverters • Open-Concept Power
Cool open living rooms, vaulted ceilings, and whole floorplans without spending $6,000+ on a ductless mini-split. In-stock for free Waipahu warehouse pickup by appointment or $50 island delivery. Includes pre-approved $45 Hawaii Energy cash rebate PDF.
Why Spend $6,500+ When You Can Cool Your Living Room for Under $985?
Standard ductless mini-splits for an open floor plan cost thousands in electrical panel upgrades, line sets, and installation labor. Our heavy-duty 18,000 & 23,500 BTU LG Dual Inverters pull 4.2 to 5.6 pints of moisture per hour, circulate air up to 40 feet, and slash cooling energy by up to 40% under Hawaiian Electric's ~44.2¢/kWh baseline.
LG Dual Inverter 18,000 BTU (LW1822IVSM)
Engineered for vaulted ceilings and open living-dining areas. Maximum vertical airflow momentum eliminates hot pockets, while LG Dual Inverter technology variable compressor speed saves up to 40% on electricity.
Our CT-36775 licensed technicians provide cantilever exterior bracket anchoring, laser 3/8" trade-wind slope leveling, and custom window retrofits. Pay the technician only after installation is complete and cooling cold.
Schedule Installation ServiceHigh-Capacity LG Dual Inverter Specifications
| Feature / Specification | 18,000 BTU (LW1822IVSM) | 23,500 BTU (LW2422IVSM) |
|---|---|---|
| Cooling Square Footage | Up to 1,000 sq. ft. (600 sq. ft. Oahu) | Up to 1,440 sq. ft. (800 sq. ft. Oahu) |
| Electrical Circuit | 208/230V / 15 Amp (NEMA 6-15P) | 208/230V / 15 Amp (NEMA 6-15P) |
| Dehumidification Capacity | 4.2 Pints / Hour | 5.6 Pints / Hour |
| Unit Weight | 112 lbs | 112 lbs |
| Smart WiFi Control | LG ThinQ® & Voice Compatible | LG ThinQ® & Voice Compatible |
| Hawaii Energy Cash Rebate | $45 Instant / Mail-In | $45 Instant / Mail-In |
| Waipahu Warehouse Stock | 20 Units Available | Sold Out (23.5k Cool+Heat In Stock) |
Frequently Asked Questions
Everything you need to know about heavy-duty Oahu window ACs
Ready for Heavy-Duty Cooling in Your Oahu Home?
Pick up your unit today at our Waipahu warehouse (by appointment) or have it delivered anywhere on Oahu for $50 flat.
In-Stock High-Capacity Window ACs (12,000 – 23,500 BTU)
Heavy-duty LG Dual Inverter units in stock at our Waipahu warehouse. Order online for free Waipahu pickup or $50 flat Oahu delivery.
