Window unitENERGY STAR
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.
$428
LG · Model LW1222IVSM
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.
$428
Price checked Sep 30, 2026
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Based on 53 prices we have recorded since Jul 25, 2026, not a market average.
Will it cool your room?
This unit's cooling matches a 550 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 renters and rooms where you cannot install a fixed unit.
Warranty and refrigerant are from Sylvane's published specifications for this exact configuration, checked Sep 26, 2026.
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
Compare windows against the other types on price, noise, efficiency and install.
The questions buyers ask, answered from live prices and real specs. See where a window unit like this fits.
LG
10,000 BTU LG Dual Inverter window AC rated CEER 15 and Energy Star certified, covering up to 450 sq ft with quiet variable-speed cooling and WiFi.
$397
at Abt Electronics
~$90/yr to run(est.)
LG
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.
LG
8,000 BTU LG Dual Inverter window AC rated CEER 15.5 and Energy Star certified for rooms up to 350 sq ft, with quiet inverter cooling and ThinQ WiFi.
$498
at Abt Electronics
Lowest since Jul 25, 2026 $498~$130/yr to run(est.)
$449
Self-fit, no pro needed
~$70/yr to run(est.)