LG LW1822IVSM specs
LG LW1822IVSM is an ENERGY STAR certified window air conditioner rated at 18,000 BTU/h with a CEER of 14.7 on 230 V.
LG LW1822IVSM is a window air conditioner rated 18,000 BTU/h with a CEER of 14.7 (higher than 25% of the 521 certified ones), the capacity ENERGY STAR’s chart assigns to rooms of 700 up to 1,000 sq ft.
Official specs
| Cooling capacity | 18,000 BTU/h |
|---|---|
| Efficiency (CEER) | 14.7 |
| Annual energy use | 918 kWh/yr |
| Voltage | 230 V |
| Less energy than federal standard | 37 % |
| Type | Window |
| Mounting | Does Not Straddle Window or Windowsill |
| Heating mode | No |
| Variable-speed compressor | Yes |
| Refrigerant | R-32 (GWP:675 | Lower GWP) |
| Size (H × W × D) | 17.7 × 26 × 30.7 in |
| Weight | 112 lb |
| Connected | No |
| Noise level | n/c |
| ENERGY STAR certified | 2023-09-18 |
Similar window air conditioners
| Model | CoolingBTU/h | Efficiency (CEER) | VoltageV |
|---|---|---|---|
| LG LW1822IVSM this page | 18,000 | 14.7 | 230 |
| Frigidaire FHWW145WF1 | 14,000 | 16 | 115 |
| TCL T12WQ2S | 12,000 | 15 | 115 |
| GE Appliances AWHV24***# | 24,000 | 13.8 | 230 |
Skip it if
- Your room is outside 700–1,000 sq ft: ENERGY STAR’s chart lists 18,000 BTU/h for that range (8-foot ceiling), and a different size for other rooms.
- You need a heating mode: this listing shows none.
- You only have a standard 115 V outlet: this model lists 230 V.
How it ranks in the ENERGY STAR list
- cooling capacity: 18,000 — rank 43 of 521 certified window air conditioner models (higher is better).
- efficiency (CEER): 14.7 — rank 379 of 521 certified window air conditioner models (higher is better).
- annual energy use: 918.4 — rank 473 of 521 certified window air conditioner models (lower is better).
Ranks compare this model with every window air conditioner in the ENERGY STAR dataset (2026-11-06), not with products on sale today.
Reading these specs
- BTU/h
- Cooling capacity in British thermal units per hour, as listed.
- CEER
- Combined Energy Efficiency Ratio. Higher is more efficient.
- Voltage
- The supply voltage listed for the model.
Noise level is not part of the ENERGY STAR dataset, so it shows as n/c. Check the maker’s own specification sheet for decibels.
Where to buy
Search Amazon.com for this exact model. Prices and availability change, so we don’t print them.
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Frequently asked questions
How much cooling does the LG LW1822IVSM provide?
ENERGY STAR lists 18,000 BTU per hour. Match capacity to your room using the maker’s sizing guidance.
How efficient is the LG LW1822IVSM?
The listed CEER is 14.7, with annual energy use of 918 kWh, which ENERGY STAR reports as 37% less energy than the federal standard.
What voltage does the LG LW1822IVSM need, and how loud is it?
The listing gives 230 V. Noise level is not part of the ENERGY STAR dataset (n/c); see the maker’s specifications for decibels.
Sources
- ENERGY STAR certified window air conditioner data, record 2687060 (data.energystar.gov, dataset 5xn2-dv4h, updated 2026-11-06)
- ENERGY STAR product guidance for window air conditioners
We compile and compare published data; we do not run our own product tests. See How We Compare.