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

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

How many watts does the LG 9,800 BTU Through-the-Wall Air Conditioner use?

It draws 920 watts (10.2 amps at 115 V) while cooling at full power, per its retailer's specification for this exact model. At the US average electricity price that is about $0.17 an hour; once the room is cool the compressor cycles, so most hours cost less.

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 Oct 27, 2026

Buy at Sylvane In stock

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Price history at Sylvane

Lowest since Jul 25, 2026:$489on Aug 26, 2026

Currently the lowest price we have tracked at Sylvane since Jul 25, 2026down from $495 on Aug 24, 2026

Based on 81 prices we have recorded since Jul 25, 2026, not a market average.

Will it cool your room?

Room size 150 sq ft ≈ 13.9 m²

More than you need for 150 sq ft

This has more cooling than your 150 sq ft room needs. It can short-cycle and leave the air cool but humid.

Compare wall units by the sleeve they fit

At a glance

Best for replacing a through-the-wall unit in an existing wall sleeve.

Cooling

9,800 BTU

Size

Average

Noise

56 dB

Audible

Install: Slides into a wall sleevePermission: A new wall opening usually needs a permit

Performance

Cooling capacity: 9,800 BTU · 2.9 kW
Power while cooling: 920 W (10.2 A at 115 V), about $0.17 an hour
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
Indoor unit: 24 x 14.41 x 20.09 in
Outdoor unit: None
Refrigerant: R-32
Wi-Fi / app: Not published
Outdoor unit needed: No
Power supply: 115 V, NEMA 5-15P plug
Wall sleeve: Fits 26 in. standard sleeves (25½ to 27 in.)

Supply voltage, plug, cooling power, cooling current and refrigerant are from Sylvane's published specifications for this exact configuration, checked Oct 18, 2026.

Power while cooling: From the maximum cooling draw its retailer lists for this exact model. An hour's cost is at that draw and the US average electricity price of 18.44¢/kWh (U.S. Energy Information Administration, Electric Power Monthly Table 5.6.A (residential average, May 2026)). The compressor cycles once the room is cool, so most hours cost less.

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

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: AIM Act refrigerant transition off R-410A to A2L (700 GWP cap)Reviewed June 2026Good to know

See all United States rules

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.
How many watts does the LG 9,800 BTU Through-the-Wall Air Conditioner use?: It draws 920 watts (10.2 amps at 115 V) while cooling at full power, per its retailer's specification for this exact model. At the US average electricity price that is about $0.17 an hour; once the room is cool the compressor cycles, so most hours cost less.
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.