How loud is the LG 23,000 BTU Window Air Conditioner with Heat?

60 dB(A) indoors, about as loud as a dishwasher.

What size room does the LG 23,000 BTU Window Air Conditioner with Heat cool?

It is rated to cool a room up to 1,400 sq ft (23,000 BTU · 6.7 kW).

Do I need a professional to install the LG 23,000 BTU Window Air Conditioner with Heat?

No. It is a window unit you can fit yourself, no professional needed. Usually no permit.

Window unit Heats too

LG · Model LW2423HR

23,000 BTU Window Air Conditioner with Heat

A window air conditioner rated at 23,000 BTU for rooms up to 1,400 sq ft. It heats in winter too and self-installs in a window.

$649.99

Live price at Electronic Express

Price checked Oct 27, 2026

Buy at Electronic Express In stock

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Will it cool your room?

Room size 350 sq ft ≈ 32.5 m²

More than you need for 350 sq ft

This has more cooling than your 350 sq ft room needs. It can short-cycle and leave the air cool but humid.

Every window air conditioner side by side

At a glance

Best for renters and rooms where you cannot install a fixed unit.

Cooling

23,000 BTU

Size

Large

Noise

60 dB

Audible

Install: Self-fit, no pro neededPermission: Usually no permit

Performance

Cooling capacity: 23,000 BTU · 6.7 kW
Heating capacity: Yes
Room coverage: up to 1,400 sq ft
Energy Star: Not published
CEER: Not published
Annual energy (cooling): Not published

Noise, size & features

Model number: LW2423HR
Indoor noise: 60 dB(A)about as loud as a dishwasher
Outdoor noise: Not published
Indoor unit: 25.5 x 16.83 x 30.5 in
Outdoor unit: None
Refrigerant: Not published
Wi-Fi / app: Not published
Outdoor unit needed: No

What is good

Heats as well as cools, which 31 of the 165 window units we list offer.

What to watch

At 60 dB(A) it is louder than 75 of the 81 other window units we list that publish a noise figure.

Installation & the rules that apply

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.

Installation

Self-fit, no pro needed

Refrigerant

GeneralRenters: get written landlord consent firstReviewed June 2026Often blocks install

GeneralCondo / HOA: exterior changes need approvalReviewed June 2026Permit required

GeneralHistoric / listed buildings: consent before any exterior unitReviewed June 2026Permit required

MassachusettsMassachusetts: local historic district approval (MGL c.40C)Reviewed June 2026Permit required

United StatesUS: local mechanical and electrical permits (vary by city)Reviewed June 2026Permit required

See full rules by region

Common questions about the LG 23,000 BTU Window Air Conditioner with Heat

How loud is the LG 23,000 BTU Window Air Conditioner with Heat?: 60 dB(A) indoors, about as loud as a dishwasher.
What size room does the LG 23,000 BTU Window Air Conditioner with Heat cool?: It is rated to cool a room up to 1,400 sq ft (23,000 BTU · 6.7 kW).
Do I need a professional to install the LG 23,000 BTU Window Air Conditioner with Heat?: No. It is a window unit you can fit yourself, no professional needed. Usually no permit.
Does the LG 23,000 BTU Window Air Conditioner with Heat heat as well as cool?: Yes. It also heats.