
Inverter quiet without the U-shape's install gymnastics.
LG Dual Inverter Smart Window AC (8,500 BTU, LW8024IVSM)
LG
The LW8024IVSM gets you 90% of the Midea U+'s quiet and efficiency in a conventional body that drops into the window like a normal AC. Pick it if the U's bracket install or recall history puts you off — just accept the ThinQ app's mediocre reputation.
LG's answer to the quiet-AC question is brute engineering instead of clever geometry: a dual-rotor inverter compressor that ramps smoothly down to 44 dB in sleep mode — library-quiet — while pushing 8,500 BTU across rooms up to 380 sq ft. Owners consistently describe the same experience: it cools fast, then fades into the background instead of cycling on with a clunk at 3 a.m. Because it's a conventional chassis, installation is the familiar lift, set, extend-the-curtains routine — no saddle bracket, no window-frame clearance puzzle, and it fits standard 22–36 inch openings. Four-way air deflection is a quiet advantage over the Midea's two-way vents if your bed or desk sits off-axis from the window. The weak spot is software. LG ThinQ handles on/off, temperature, scheduling and energy monitoring, and it talks to Alexa and Google — but its app-store reputation is genuinely mixed, and this is not the ecosystem to buy for the app alone. Buy it for the compressor.
$399
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Last reviewed Jul 5, 2026
What we like
- ✓Dual-inverter compressor holds temperature with a steady, low hum instead of cycling
- ✓Conventional install — no bracket, no U-saddle fitting, standard window kit
- ✓4-way air deflection reaches corners the two-way units miss
- ✓Energy Star with claimed 35% margin over the federal efficiency floor
Trade-offs
- −ThinQ app is the weakest link — reviews are consistently mixed
- −Heavier than non-inverter 8K units; still a two-person lift
- −The window stays sealed shut all season, unlike the U-shaped design
- −Rarely discounted as aggressively as the Midea
Best for
you want inverter quiet and efficiency in a normal window-AC body with a normal install
Avoid if
you want to keep using your window during the season, or you're buying primarily for a polished app experience
Score breakdown
- quietness9.0/10
- energy efficiency8.8/10
- cooling power8.5/10
- value8.3/10
- smart features8.0/10
- installation fit7.8/10
Specs
- model
- LW8024IVSM
- warranty
- 1 year
- compressor
- LG Dual Inverter (variable speed)
- fan speeds
- 4 (with Auto Cool)
- window fit
- 22–36 in wide, min 13 in tall
- noise level
- As low as 44 dB (sleep mode)
- air direction
- 4-way
- room coverage
- Up to 380 sq ft
- smart control
- LG ThinQ app, Alexa, Google Assistant
- cooling capacity
- 8,500 BTU
- energy certification
- Energy Star; up to 35% better than DOE minimum CEER
How we know
High confidenceConsumer Reports lab-tests the LW8024IVSM for 250–350 sq ft rooms with steady inverter operation; LG publishes the 44 dB sleep-mode figure and the 35%-over-DOE-minimum CEER claim against the 10.9 baseline (May 2024 certification). Independent 2026 window-AC roundups rank it the best conventional-body inverter unit, typically at ~$400. Owner reviews across P.C. Richard, Best Buy and Amazon converge on the same two notes: impressively quiet, consistent temperatures; app occasionally flaky. Scored just behind the Midea U+ on quietness and efficiency, ahead of it on installation.
Other expert reviews
Video reviews
- Watch on Amazon Live ↗
Amazon Live — LG Dual Inverter Smart Window Air Conditioner — hands-on review
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