LG Window Air Conditioner, Cooling & Heating 23,000 BTU in White
Window unit Heats too

LG · Model LW2423HRSM

Window Air Conditioner, Cooling & Heating 23,000 BTU in White

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.

$859

List price

No live retailer for this exact model right now.

Last listed at Abt Electronics for $859 on Oct 21, 2026, out of stock.

The closest window unit you can buy today:

Perfect Aire 25,000 BTU Window Air Conditioner with Electric HeatPerfect Aire 25,000 BTU Window Air Conditioner with Electric HeatCovers up to 1,400 sq ft In stock$999View

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Will it cool your room?

Room size 861 sq ft ≈ 80 m²
Fits your 861 sq ft

This unit's cooling matches your 861 sq ft room.

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
-
Noise
-
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
LW2423HRSM
Indoor noise
Not published
Outdoor noise
Not published
Indoor unit
Not published
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 151 window units we list offer.

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

-

United StatesUS: local mechanical and electrical permits (vary by city)Reviewed June 2026Permit required
United StatesUS: historic district Certificate of AppropriatenessReviewed June 2026Permit required
United StatesUS: HOA / condo CC&Rs and architectural reviewReviewed June 2026Permit required
United StatesUS: NEC Article 440 dedicated circuit and disconnectReviewed June 2026Allowed with conditions
United StatesUS: window-unit restrictions and bracket/safety rulesReviewed June 2026Allowed with conditions
See all United States rules

Common questions about the LG Window Air Conditioner, Cooling & Heating 23,000 BTU in White

What size room does the LG Window Air Conditioner, Cooling & Heating 23,000 BTU in White 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 Window Air Conditioner, Cooling & Heating 23,000 BTU in White?
No. It is a window unit you can fit yourself, no professional needed. Usually no permit.
Does the LG Window Air Conditioner, Cooling & Heating 23,000 BTU in White heat as well as cool?
Yes. It also heats.

How LG compares with other brands

Both lineups at every size both brands sell in stock, with live prices, ratings and the warranty each listing states.

Is a window even the right type?

Compare windows against the other types on price, noise, efficiency and install.

Buying guides for a window unit like this

The questions buyers ask, answered from live prices and real specs. See where a window unit like this fits.