How loud is the LG 9,800 BTU Through-the-Wall Air Conditioner?

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

What size room does the LG 9,800 BTU Through-the-Wall Air Conditioner cool?

It is rated to cool a room up to 450 sq ft (9,800 BTU · 2.9 kW).

Do I need a professional to install the LG 9,800 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

LG · Model LT1016CER

9,800 BTU Through-the-Wall Air Conditioner

A through-the-wall air conditioner rated at 9,800 BTU for rooms up to 450 sq ft. It installs in a wall sleeve.

$489

Live price at Sylvane

Price checked Sep 30, 2026

Buy at Sylvane In stock

Performance

Cooling capacity: 9,800 BTU · 2.9 kW
Heating capacity: Cooling only
Room coverage: up to 450 sq ft
Energy Star: Not published
CEER: Not published
Annual energy (cooling): Not published

Noise, size & features

Model number: LT1016CER
Indoor noise: 56 dB(A)about as loud as a dishwasher
Outdoor noise: Not published

Refrigerant is from Sylvane's published specifications for this exact configuration, checked Sep 26, 2026.

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 is good

Uses R-32 (GWP 675), the low-GWP class new US residential equipment moved to.

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

R-32

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

General

Common questions about the LG 9,800 BTU Through-the-Wall Air Conditioner

How loud is the LG 9,800 BTU Through-the-Wall Air Conditioner?: 56 dB(A) indoors, about as loud as a dishwasher.
What size room does the LG 9,800 BTU Through-the-Wall Air Conditioner cool?: It is rated to cool a room up to 450 sq ft (9,800 BTU · 2.9 kW).
Do I need a professional to install the LG 9,800 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.