Window ENERGY STAR

LG Dual Inverter LW1522IVSM 14K

3.9(391) by LG · Model LW1522IVSM
LG_Dual_Inverter_LW1522IVSM_14K

LG's dual-inverter scaled to whole-floor duty — 14,000 BTU across 800 sq ft, still hitting 44 dB in sleep mode.

Cooling
14,000 BTU
Covers
800 ft²
Efficiency
14.7 CEER
Noise
44 dB
$529 est.
typical street price · via Amazon
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Is 14,000 BTU right for your room? Run the sizing calculator

Strengths & trade-offs

Pros
  • CEER 14.7 — roughly 35% above the federal minimum
  • 44 dB sleep mode, rare at 14K BTU
  • ThinQ app with Alexa and Google
Cons
  • Amazon pricing is volatile — often third-party near list
  • Middling owner rating for the price

What the LG Dual Inverter LW1522IVSM 14K costs to run

Estimated from this unit's 14.7 CEER rating at 8 hours/day of cooling, using average residential electricity rates for each US climate zone. Your usage and utility rate will shift these numbers — run the calculator for your exact room.

Climate zoneExample regionsEst. cost / month
Cool North Pacific NW, Upper Midwest, New England $37 /mo
Mixed / Temperate Mid-Atlantic, Midwest, Mountain $39 /mo
Hot & Humid Southeast, Gulf Coast, Texas $32 /mo
Hot & Dry Southwest, Desert $34 /mo

Full specifications

Type Window air conditioner
Cooling capacity 14,000 BTU
Rated coverage 800 ft²
Efficiency 14.7 CEER
Noise (low) 44 dB
Smart features App, Voice
ENERGY STAR Yes
Model number LW1522IVSM
Typical street price $529

Specs from manufacturer data; price and ratings are snapshots and may vary. See how we evaluate. Data last reviewed June 2026.

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