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 with heavy-duty 208/230V LG Dual Inverters. In-stock for free Waipahu warehouse pickup by appointment or $50 island delivery. Includes pre-approved $45 Hawaii Energy cash rebate PDF.
Cool Your Entire Open Living Room for $925–$1,025
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 across open floor plans, 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 specialist 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 | 5 Units Available | 15 Units Available |
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 across Honolulu, Metro, Central, Windward, and West Oahu for $50 flat.
In-Stock High-Capacity Window ACs (12,000 – 23,500 BTU)
Heavy-duty LG Dual Inverter & GE units in stock at our Waipahu warehouse. Order online for free Waipahu pickup or $50 flat Oahu delivery.
Oahu In-Stock LG & GE Window AC Price, BTU & Specification Comparison Table
4.9★ (142 Oahu Reviews) • Free Waipahu Pickup or $50 Delivery| Model & MPN | Cooling BTU | Oahu Room Size (AHAM) | Voltage / Circuit | Noise / Efficiency | Waipahu Price & Rebate | Stock & Action |
|---|---|---|---|---|---|---|
| LG Dual Inverter 6,000 BTU (LW6023IVSM) | 6,000 BTU | Up to 220 sq. ft. (Up to 260 sq. ft.) | 115V / 15 Amp | 44 / 54 dB • 15.5 CEER | $560(-$45 Rebate) | 11 In Stock → |
| LG Dual Inverter 10,000 BTU (LW1022IVSM) | 10,000 BTU | Up to 330 sq. ft. (Up to 450 sq. ft.) | 115V / 15 Amp | 44 / 58 dB • 15.0 CEER | $650(-$45 Rebate) | 10 In Stock → |
| LG Dual Inverter 12,000 BTU (LW1222IVSM) | 12,000 BTU | Up to 380 sq. ft. (Up to 550 sq. ft.) | 115V / 15 Amp | 44 / 58 dB • 15.0 CEER | $745(-$45 Rebate) | 20 In Stock → |
| LG Dual Inverter 14,000 BTU (LW1522FVSM) | 14,000 BTU | Up to 450 sq. ft. (Up to 700 sq. ft.) | 115V / 15 Amp | 44 / 58 dB • 14.7 CEER | $785(-$45 Rebate) | 48 In Stock → |
| LG Dual Inverter 18,000 BTU (LW1822IVSM) | 18,000 BTU | Up to 600 sq. ft. (Up to 1,000 sq. ft.) | 208/230V / 15 Amp | 44 / 59 dB • 14.7 CEER | $925(-$45 Rebate) | 5 In Stock → |
| LG Dual Inverter 23,500 BTU (LW2422IVSM) | 23,500 BTU | Up to 800 sq. ft. (Up to 1,440 sq. ft.) | 208/230V / 15 Amp | 53 / 62 dB • 14.5 CEER | $1,025(-$45 Rebate) | 15 In Stock → |
| LG 7,600 BTU (LW8023HRSM) | 7,600 BTU | Up to 260 sq. ft. (Up to 320 sq. ft.) | 115V / 15 Amp | 50 / 52 dB • 11.3 CEER | $650 | 40 In Stock → |
| LG 18,000 BTU (LW1823HRSM) | 18,000 BTU | Up to 600 sq. ft. (Up to 1,000 sq. ft.) | 208/230V / 20 Amp | 57 / 61 dB • 11.1 CEER | $925 | 10 In Stock → |
| LG 8,000 BTU (LW8024RD) | 8,000 BTU | Up to 280 sq. ft. (Up to 350 sq. ft.) | 115V / 15 Amp | 52 / 58 dB • 12.0 CEER | $395 | 20 In Stock → |
| LG 12,000 BTU (LW1217ERSM1) | 12,000 BTU | Up to 380 sq. ft. (Up to 550 sq. ft.) | 115V / 15 Amp | 52 / 59 dB • 12.0 CEER | $625 | 20 In Stock → |
| GE 8,200 BTU (AJCQ08AWJ) | 8,200 BTU | Up to 290 sq. ft. (Up to 350 sq. ft.) | 115V / 15 Amp | 54 / 59 dB • 10.6 CEER | $1,000 | 5 In Stock → |
| GE 12,000 BTU (AJCQ12AXXWA) | 12,000 BTU | Up to 390 sq. ft. (Up to 550 sq. ft.) | 115V / 15 Amp | 48 / 56 dB • 10.5 CEER | $1,200(-$45 Rebate) | 4 In Stock → |
VERIFIED ISLAND REVIEWS
Oahu Homeowners • Waipahu Warehouse Service
Bryan M.
Verified“I found this company on Google. They are located in the Waipahu industrial area across from the old City Mill. The LG AC unit my mother needed was in stock - so...”
Tommylynn B.
Verified“I replaced two window ac units, called on Wednesday and Brian came out the next day. Professional, timely and installation was flawless! Mahalo Brian!”
Ron T.
Verified“Very efficient and worked on a holiday (Veterans Day) to replace my large window AC. My AC also has WiFi so I can control it outside my home. Chris was very pro...”