LG · Model LW1522IVSM
14,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner
14,000 BTU LG Dual Inverter window AC rated CEER 14.7 and Energy Star certified, sized to cool large rooms up to 700 sq ft with WiFi control.
$599
List priceLG.com list price $599.
No live retailer for this exact model right now.
Last listed at Abt Electronics for $599 on Nov 10, 2026, out of stock.
The closest window unit you can buy today:
Frigidaire 14,000 BTU Wi-Fi Enabled Energy Star Inverter Window Air ConditionerCovers up to 700 sq ft In stock$529View Or look for this exact model on Amazon:
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Will it cool your room?
This unit's cooling matches a 700 sq ft room. Set your room size to check the fit for your space.
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 large rooms and open-plan spaces.
Performance
- Cooling capacity
- 14,000 BTU · 4.1 kW
- Power while cooling
- 1,300 W (12 A at 115 V), about $0.24 an hour
- Heating capacity
- Cooling only
- Room coverage
- up to 700 sq ft
- Energy Star
- Yes
- CEER
- 14.7
- Annual energy (cooling)
- 714 kWh
Noise, size & features
- Model number
- LW1522IVSM
- Indoor noise
- 44 dB(A)about as loud as a quiet library
- Outdoor noise
- Not published
- Indoor unit
- 15.0 x 23.6 x 28.8 in (HxWxD)
- 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 18, 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
- Large 14,000 BTU, cools up to 700 sq ft
- CEER 14.7, Energy Star certified, well above the DOE minimum
- Dual Inverter for quiet, efficient cooling
- R-32 refrigerant and ThinQ WiFi
What to watch
- Heavy (about 85 lb) and large chassis
- Needs a wider, sturdier window
- 44 dB on low fan
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 14,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner
- How much does the LG 14,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner cost to run per year?
- About $130 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 14,000 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 14,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner?
- Its efficiency rating is CEER 14.7, and it is ENERGY STAR certified.
- How many watts does the LG 14,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner use?
- It draws 1,300 watts (12 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 $0.24 an hour; once the room is cool the compressor cycles, so most hours cost less.
- What size room does the LG 14,000 BTU Dual Inverter Smart Wi-Fi Window Air Conditioner cool?
- It is rated to cool a room up to 700 sq ft (14,000 BTU · 4.1 kW).
- Do I need a professional to install the LG 14,000 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.
How LG compares with other brands
Both lineups at every size both brands sell in stock, with live prices, ratings and the warranty each listing states.
How the LG Dual Inverter line compares
Both lines at every size both sell in stock, with live prices, ratings, recalls and what each maker says about its line.
Is a window even the right type?
Compare windows against the other types on price, noise, efficiency and install.
Buying guides for a window unit like this
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