LG · Model LW1222IVSM
12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner
A window air conditioner rated at 12,000 BTU for rooms up to 550 sq ft. It self-installs in a window and connects to Wi-Fi for app control.
$549
Live price at Abt ElectronicsPrice checked Oct 27, 2026
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Price history at Abt Electronics
Tracked price is up since Jul 25, 2026
Based on 80 prices we have recorded since Jul 25, 2026, not a market average.
Will it cool your room?
This unit's cooling matches your 450 sq ft room.
Estimated from ENERGY STAR's published annual energy use at about 750 hours of cooling a year (the DOE test standard) and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). A standardized figure for comparison; your real cost depends on how much you run it, your local rate and your climate.
Local rates vary widely (about 15¢/kWh in Florida to 33¢ in California), and hotter regions run their AC more hours, so your real cost differs.
At a glance
Best for renters and rooms where you cannot install a fixed unit.
Where to buy
2 retailers- Abt ElectronicsLowest In stock$549Buy
- Sylvane In stock$549Buy
- AmazonPrice and stock shown on AmazonSearch Amazon
Performance
- Cooling capacity
- 12,000 BTU · 3.5 kW
- Power while cooling
- 1,240 W (10.8 A at 115 V), about $0.23 an hour
- Heating capacity
- Cooling only
- Room coverage
- up to 550 sq ft
- Energy Star
- Yes
- CEER
- 15
- Annual energy (cooling)
- 600 kWh
Noise, size & features
- Model number
- LW1222IVSM
- Indoor noise
- 44 dB(A)about as loud as a quiet library
- Outdoor noise
- Not published
- Indoor unit
- 23.7 x 15 x 28.8 in
- Outdoor unit
- None
- Refrigerant
- R-32
- Wi-Fi / app
- Yes
- Outdoor unit needed
- No
- Power supply
- 115 V, NEMA 5-15P plug
- Warranty
- 1-Year Limited Warranty
Supply voltage, plug, cooling power, cooling current, refrigerant and warranty are from Sylvane's published specifications for this exact configuration, checked Oct 27, 2026.
Power while cooling: From the maximum cooling draw its retailer lists for this exact model. An hour's cost is at that draw and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). The compressor cycles once the room is cool, so most hours cost less.
What is good
- At 44 dB(A) it is quieter than 61 of the 81 other window units we list that publish a noise figure.
- Uses R-32 (GWP 675), the low-GWP class new US residential equipment moved to.
Installation & the rules that apply
This is a window unit. No EPA Section 608 technician is needed: the refrigerant circuit is factory-sealed and never opened. A plug-in window unit needs no permit, so the friction is with your building rather than the government. Many HOAs restrict window units on appearance grounds, though an HOA regulating how you mount one stands on much firmer ground than one banning cooling outright. Landlords can set conditions, and the falling hazard is taken seriously: New York City, for instance, requires window units to be supported by brackets or mounting rails, and many building insurers and HOAs now require a bracket regardless of city.
Self-fit, no pro needed
R-32
Common questions about the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner
- How much does the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner cost to run per year?
- About $110 a year. Estimated from ENERGY STAR's published annual energy use at about 750 hours of cooling a year (the DOE test standard) and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). A standardized figure for comparison; your real cost depends on how much you run it, your local rate and your climate.
- How loud is the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner?
- 44 dB(A) indoors, about as loud as a quiet library.
- How energy-efficient is the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner?
- Its efficiency rating is CEER 15, and it is ENERGY STAR certified.
- How many watts does the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner use?
- It draws 1,240 watts (10.8 amps at 115 V) while cooling at full power, per its retailer's specification for this exact model. At the US average electricity price that is about $0.23 an hour; once the room is cool the compressor cycles, so most hours cost less.
- What size room does the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner cool?
- It is rated to cool a room up to 550 sq ft (12,000 BTU · 3.5 kW).
- Do I need a professional to install the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner?
- No. It is a window unit you can fit yourself, no professional needed. Usually no permit.
Compare the LG 12,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner head-to-head
How LG compares with other brands
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How the LG Dual Inverter line compares
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Is a window even the right type?
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