How loud is the LG 14,000 BTU Through-The-Wall Air Conditioner?

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

Do I need a professional to install the LG 14,000 BTU Through-The-Wall Air Conditioner?

Not to replace a unit, but usually yes for a new opening. Sliding it into an existing wall sleeve it fits is a job you can do yourself (it is heavy, so plan on two people), with no refrigerant work. A new installation means cutting an opening through an exterior wall and fitting a sleeve, which is contractor work and usually needs a building permit.

Through-the-wall unit

14,000 BTU Through-The-Wall Air Conditioner

Name: LG 14,000 BTU Through-The-Wall Air Conditioner
Brand: LG

A through-the-wall air conditioner rated at 14,000 BTU. It installs in a wall sleeve.

$649

List price

No live retailer for this exact model right now.

Last listed at Sylvane for $639 on Aug 3, 2026. We have not been able to confirm it since.

The closest through-the-wall unit you can buy today:

TCL 14,000 BTU Through-the-Wall Air Conditioner - Cool OnlyCovers up to 700 sq ft

Performance

Cooling capacity: 14,000 BTU · 4.1 kW
Heating capacity: Cooling only
Room coverage: Not published
Energy Star: Not published
CEER: Not published
Annual energy (cooling): Not published

Noise, size & features

Indoor noise: 58 dB(A)about as loud as a dishwasher
Outdoor noise: Not published
Indoor unit

Will it fit your wall sleeve?

LG's manual lists the existing sleeves it fits (25½ to 27 inches wide, from Frigidaire, GE/Hotpoint, Whirlpool, Fedders/Emerson, Carrier and Friedrich), but LG strongly recommends a new LG sleeve and says an existing sleeve's rear louvers must be redirected. LG's own sleeve is the AXSVA1, or the AXSVA4 with a stamped grille (about 25⅞ x 15½ x 16¾ in.). Source: LG owner's manual (hosted by P.C. Richard)

Every through-the-wall AC and PTAC by the sleeve it fits

What to watch

At 58 dB(A) it is louder than 20 of the 24 other through-the-wall units we list that publish a noise figure.

Installation & the rules that apply

This is a through-the-wall air conditioner. It sits in a sleeve built into an exterior wall, so the window-unit mounting and bracket rules do not apply to it. Swapping it into an existing sleeve is a like-for-like replacement; cutting a new opening changes the building's exterior wall, which usually needs a building permit and, in a condo, co-op or historic building, approval first.

Installation

Slides into a wall sleeve

Refrigerant

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

General

Common questions about the LG 14,000 BTU Through-The-Wall Air Conditioner

How loud is the LG 14,000 BTU Through-The-Wall Air Conditioner?: 58 dB(A) indoors, about as loud as a dishwasher.
Do I need a professional to install the LG 14,000 BTU Through-The-Wall Air Conditioner?: Not to replace a unit, but usually yes for a new opening. Sliding it into an existing wall sleeve it fits is a job you can do yourself (it is heavy, so plan on two people), with no refrigerant work. A new installation means cutting an opening through an exterior wall and fitting a sleeve, which is contractor work and usually needs a building permit.