LG LW1022FVSM
window air conditioner · 10,000 BTU cooling · fits ~500 sq ft
A window AC rated 10,000 BTU — enough cooling for a room of roughly 500 square feet (the 20-BTU-per-square-foot rule).
What actually decides this purchase
We publish 81 units at 10,000 BTU. They run within $27 a year of each other — but they sell for $298 to $619, a 2.1× spread. Efficiency is not what decides this purchase at 10,000 BTU; price, noise and whether it fits your window are. Here is where this unit lands.
At $499 this sits above the 10,000 BTU median of $427 — $72 more for cooling that costs the same to run, since the whole class is within $27 a year of itself. That premium has to buy something you can name: quieter running, a better warranty, a fit your window needs. Worth comparing against the BLACK+DECKER BD10NWES at $298 and the Friedrich CCV10A10A at 32 dBA for $619.
Price
$499
51st cheapest of the 56 units we have a price for at this size (median $427). Checked 2026-08-20.
Noise
Not published
The maker publishes no dBA figure we could verify, and noise is not part of the DOE certification. It is the most common complaint about window units, so treat its absence as a real unknown.
Window fit
≥ 20" wide
Derived from the certified cabinet width; confirm against the maker's sheet.
Circuit
Standard 115V
Plugs into a normal outlet — no electrician.
We do not have noise for this unit and will not estimate it. Everything above that carries a number is from a certification record or the manufacturer's own published sheet.
Buy this unit
$499.00 at Amazon
A window AC is a self-install unit: you set it in the window (or wall sleeve), no contractor or refrigerant charge needed. We matched this exact model’s Amazon listing — price shown was current at our last data refresh.
Sized for ~500 sq ft — measure your room and check your window type before you buy.
Check current price →Affiliate link. We may earn a commission — it never changes your price or our specs. Links to the exact listing; price can change at Amazon.
The Verified Label — every certified spec
certified 2023-09-27
status: Active
Cooling & efficiency — source: ENERGY STAR / DOE
Fit & install — does it fit your window?
Efficiency & running cost — computed by Verified HVAC Data
Worth keeping in proportion: every unit in the 10,000 BTU class runs within $27 a year of every other. The gap between the cheapest and dearest to buy at this size is 12× larger. Efficiency is the smallest number on this page, which is why it is not at the top of it.
Refrigerant & identity
Brand, warranty & reliability
LG ductless/VRF is a premium-tier Korean line with strong efficiency and a broad service base, but full 10-12 year coverage hinges on registration and installation by an LG Pro/Excellence contractor, and older (2018-and-earlier) inverter boards had elevated failure rates LG has since addressed.
Reliability is our read of published brand assessments (source), not a certified rating — real-world dependability hinges on a correct install more than the brand. Warranty terms are the manufacturer's (policy) and almost always require online registration within 60–90 days for the full length.
Compare similar room ACs
Frequently asked questions
Is 10,000 BTU right for my room, or should I size up?
About 500 square feet is the guide figure, and 81 certified units sit on that shelf. The next shelf up is 11,000 BTU (4 units), about 550 sq ft. Below it, 9,000 BTU (6 units) covers about 450 sq ft. Between two shelves, take the smaller one: oversizing is the usual reason a unit cools but leaves the room clammy, which our sizing calculator explains.
Will the LG LW1022FVSM fit my window?
Measure your window opening first — it needs to be at least 20" wide (the cabinet width), and the unit is about 12" tall and 25" deep, roughly 63 lb. Most double-hung windows fit units in this range with the included side panels, but confirm your window's inside width and minimum height.
Sources. Certification and CEER from ENERGY STAR room-AC data and the DOE compliance certification database. Cooling capacity, dimensions and refrigerant are the manufacturer-certified values. Annual running cost, suggested room size and the percentile are computed by Verified HVAC Data from published ratings and EIA U.S. average electricity prices — see our methodology. Refrigerant GWP is the IPCC value. We publish no star ratings and take no payment for placement. "Not published" means the source registry doesn't disclose it — we never fill a spec with a guess.