Best for Large Rooms

LG 12,000 BTU Smart Window Air Conditioner

Hushed, efficient cooling for larger spaces at a surprisingly competitive price. Reddit users consistently praise LG window units for quiet operation and reliability.

$300–$450

Amazon

Pros

12,000 BTU handles larger rooms (up to ~550 sq ft) effectively
Notably quiet operation — The Spruce calls the 10,000 BTU variant 'nearly silent'
Smart WiFi connectivity for remote control
Strong community reputation on Reddit for reliability

Cons

Requires 240V outlet for some higher-BTU models
Larger physical footprint and heavier than smaller units
RTINGS notes they haven't been able to test LG units directly yet
Smart features require app setup which some users find cumbersome

Why we recommend it

If your room is too big for the Midea 8K, this LG is the move. WIRED calls it 'hushed, efficient room cooling at a surprisingly low price' — and Reddit backs that up hard.

Sources

wired.comBest Window Air Conditioners 2025 | WIRED

thespruce.comThe 6 Best-Tested Window Air Conditioners of 2026 | The Spruce

reddit.comWindows AC unit recommendations | r/hvacadvice

rtings.comThe 3 Best Window Air Conditioners of 2026 | RTINGS

WIRED

“The LG 12,000 BTU Smart Window Air Conditioner brings hushed, efficient room cooling at a surprisingly low price.”

Consider instead

Midea U-Shaped Smart Inverter Window AC (8,000 BTU)

The undisputed community and expert favorite since 2020. Inv…

$239–$380

Frigidaire FHWC054TE1 5,000 BTU Window AC