LG 8,000 BTU Air Conditioners: Which One Fits Your Room?
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LG is one of the best-known names in room air conditioners, with a lineup that ranges from simple window units to quiet dual inverter models and smart units you control from your phone. An 8,000 BTU air conditioner is one of the most popular sizes because it matches a typical bedroom or living room. BTU stands for British Thermal Unit, a measure of how much heat an air conditioner can remove from a room each hour; more BTU means more cooling power.
The six LG models below all sit around the 8,000 BTU class, from a 6,000 BTU small-room unit to an 8,500 BTU dual inverter, and they differ in installation type (window or through the wall), smart features, noise level and whether the unit is new or renewed.
LG 8,000 BTU Air Conditioners Compared
| Model | Cooling | Room Size | Installation | Smart Control |
|---|---|---|---|---|
| LW8024RD | 8,000 BTU | Up to 350 sq ft | Window | No, remote only |
| LW8024RSMX | 8,000 BTU | Up to 350 sq ft | Window | Wi-Fi, Alexa, Google |
| LW8024RSMY (Renewed) | 8,000 BTU | About 350 sq ft | Window | Wi-Fi, Alexa, Google |
| 7,800 BTU Through the Wall | 7,800 BTU | Up to 330 sq ft | Wall sleeve | No, remote only |
| 8,500 BTU Dual Inverter | 8,500 BTU | Up to 350 sq ft | Window | Wi-Fi, Alexa, Google |
| LW6024RSMX | 6,000 BTU | Up to 250 sq ft | Window | Wi-Fi, Alexa, Google |
A few terms before we compare. The listings put 8,000 BTU at about 350 square feet, such as a 14 by 25 foot room. A window unit sits in a double-hung window, the kind that slides up and down. A through-the-wall unit slides into a metal sleeve built into an exterior wall. An inverter compressor adjusts its speed smoothly instead of switching fully on and off, which makes it quieter and more efficient. Sound is measured in decibels (dB); lower is quieter.
LG 8,000 Window Air Conditioner LW8024RD for Simple Cooling
LG
LG 8,000 Window Air Conditioner, 115V, 350 Sq.Ft. (14' x 25' Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, 8000 BTU, White
Price and specifications are read from the Amazon product page and can change.
LG 8,000 Window Air Conditioner
Best for: Simple cooling without smart features
Pros
- Cools up to 350 sq ft
- 3 cooling and fan speeds
- Auto restart after outages
- Remote and 24-hour timer
Cons
- No Wi-Fi
- Not an inverter
The LG 8,000 Window Air Conditioner (LW8024RD) is the straightforward choice. It cools rooms up to 350 square feet with three cooling and fan speeds plus an Auto Cool mode, and you control it with electronic buttons or the included remote. A 24-hour timer lets you schedule cooling, and 4-way air deflection points the airflow where you need it.
Auto Restart turns it back on after a power outage with your settings intact. It uses R-32 refrigerant, a washable filter with a reminder light, and runs on a standard 115V outlet. LG says it runs as low as 53 dB on low, though the spec sheet lists 54 dB, a small difference. It does not have Wi-Fi or an inverter.
This unit suits renters, students and gift-givers who want a reliable air conditioner without apps. If you want to cool the room before you get home, the smart LW8024RSMX adds Wi-Fi.
LG 8000 BTU Window Air Conditioner LW8024RSMX for Smart Control
![LG 8000 BTU Window Air Conditioner [2024 New] Remote Control WiFi Enabled App Washable Filer Ultra-Quiet Cools 350 Sq. ft for Small & Medium Room AC Unit air conditioner Easy Install White LW8024RSMX](https://m.media-amazon.com/images/I/41sSpPhAn9L._SL520_.jpg)
LG
LG 8000 BTU Window Air Conditioner [2024 New] Remote Control WiFi Enabled App Washable Filer Ultra-Quiet Cools 350 Sq. ft for Small & Medium Room AC Unit air conditioner Easy Install White LW8024RSMX
Price and specifications are read from the Amazon product page and can change.
LG 8000 BTU Window Air Conditioner
Best for: Phone and voice control on a basic unit
Pros
- Wi-Fi with LG ThinQ
- Works with Alexa and Google
- EZ Mount kit included
Cons
- Listing says two fan speeds
- Not an inverter
The LG 8000 BTU Window Air Conditioner (LW8024RSMX) adds Wi-Fi to the same 8,000 BTU, 350 square foot class. Through the LG ThinQ app you can change settings from your phone, and it works with Google Assistant and Amazon Alexa for voice control.
It fits double-hung windows 22 to 36 inches wide and at least 13 inches tall, using the included EZ Mount kit, and the fixed chassis means the unit slides in as one piece. The washable filter slides out for cleaning, which LG recommends every 30 days, and a check-filter alert reminds you. It uses R-32 refrigerant, lists 52 dB, and includes an energy-saving function and 4-way air deflection. The description says two cooling and fan speeds, while the spec sheet says “multiple,” so expect two.
This model suits busy people who want to cool the room on the way home or adjust it by voice. For quieter nights, the 8,500 BTU dual inverter is the upgrade.
LG Smart Window Air Conditioner LW8024RSMY (Renewed) for Value
LG
LG Smart Window Air Conditioner LW8024RSMY White (Renewed)
Price and specifications are read from the Amazon product page and can change.
LG Smart Window Air Conditioner LW8024RSMY
Best for: Smart AC for value seekers
Pros
- Wi-Fi and voice control
- Dry mode for humid days
- Auto Clean and auto restart
Cons
- Renewed unit
- Warranty terms not listed
The LG Smart Window Air Conditioner LW8024RSMY is sold as a renewed unit, meaning it was previously returned or used and has been refurbished for resale. The listing brand is Amazon Renewed, and the listing does not state the warranty terms, so check them before you buy.
It delivers 8,000 BTU for rooms up to roughly 350 square feet, with LG ThinQ app control and voice control through Alexa or Google Assistant. Cool mode also dehumidifies, and a dry mode removes more moisture on humid days. Energy Saver cycles the compressor to reduce electricity use, Auto Clean helps keep the unit dry inside, and a timer, sleep mode and auto restart are included. It draws 730 watts, weighs 44 pounds and measures about 16.4 by 19.5 by 12.3 inches.
This unit suits buyers comfortable with renewed products who want smart features. As a gift, a new unit gives more certainty.
LG 7,800 BTU Through the Wall Air Conditioner for Wall Sleeves
LG
LG 7,800 BTU Through the Wall Air Conditioner, 115V, AC Wall Unit for Rooms up to 330 Sq. Ft., Perfect for Bedroom or Office, Wall Mounted AC Unit with Remote and 3 Cool & Fan Speeds, White
Price and specifications are read from the Amazon product page and can change.
LG 7,800 BTU Through the Wall
Best for: Rooms with an existing wall sleeve
Pros
- Through-the-wall install
- Energy saver mode
- Removes up to 2.1 pints per hour
- Trim kit and grille included
Cons
- Needs 24.5-27 inch wall sleeve
- No Wi-Fi
The LG 7,800 BTU Through the Wall air conditioner is built for a different installation. It is not vented for a window; instead it slides into a wall sleeve 24.5 to 27 inches wide. Many apartments and older homes already have these sleeves.
The listing gives 7,800 BTU in the title and specs, but calls it an 8,000 BTU unit in its features and description, and gives room sizes of both 330 and 340 square feet. It has three cooling and fan speeds and three modes, an Energy Saver mode that turns off the compressor when the room reaches temperature, and a dry mode that removes up to 2.1 pints of moisture an hour. The EER, a measure of energy efficiency, is 10.7, and the description says it is Energy Star certified. A trim kit, outdoor grille, washable filter, insulation foam and remote are included. Noise is listed at 56 dB, the loudest here.
This unit suits homes with an existing wall sleeve. If you only have a window, choose one of the window models instead.
LG 8,500 BTU Window AC Dual Inverter for Quiet Bedrooms
Best for: Light sleepers and bedrooms
Pros
- Dual inverter, 44 dB sleep mode
- Up to 35% more efficient
- 4 fan speeds
- Wi-Fi and voice control
Cons
- Listing mixes up BTU figures
The LG 8,500 BTU Window AC is LG’s dual inverter model, and quietness is its headline. It runs as low as 44 dB in sleep mode, which LG compares to a library, far quieter than the other units here. LG says dual inverter technology is up to 35% more energy efficient than the Energy Star requirement.
It cools rooms up to 350 square feet with four cooling and fan speeds plus Auto Cool, and includes Wi-Fi control through LG ThinQ, Alexa and Hey Google, an LCD remote and a 24-hour timer. Be aware of listing confusion: the title and specs say 8,500 BTU, one feature line mentions 6,000 BTU, and the model is named LW8024IVSM. Treat 8,500 BTU as the likely rating and confirm on the product page.
This model suits light sleepers, nurseries and anyone who wants the most efficient option. If you have a very small room, the 6,000 BTU unit is enough.
LG 6000 BTU Window Air Conditioner LW6024RSMX for Small Rooms
Best for: Small bedrooms and home offices
Pros
- Wi-Fi and voice control
- Fits smaller windows
- Washable filter with alert
Cons
- Only 6,000 BTU
- Up to 250 sq ft
The LG 6000 BTU Window Air Conditioner (LW6024RSMX) is smaller than the rest, and we include it honestly as an alternative. It cools up to 250 square feet, so it is best for small bedrooms, dorm rooms and home offices rather than a 350 square foot living room.
It has Wi-Fi control through LG ThinQ, Alexa and Hey Google, two cooling and fan speeds, a 24-hour timer, auto restart and an LCD display. It fits windows 21 to 35 inches wide and at least 12 inches tall with the EZ Mount kit, uses a slide-out washable filter with alert, and lists 52 dB.
This unit suits small spaces where 8,000 BTU would be more than needed. For a medium room, step up to an 8,000 BTU model.
How to Choose the Right LG Air Conditioner
Start with room size. Around 350 square feet points to an 8,000 or 8,500 BTU unit; 250 square feet or less points to the 6,000 BTU model. Too small an AC struggles on hot days, while too large may cool before removing humidity.
Next, check your installation. Double-hung windows suit the window models; an existing wall sleeve calls for the through-the-wall unit. If you cannot use a window at all, a portable unit is another route; see our 8,000 BTU portable air conditioner guide.
Then weigh noise and smart features. The dual inverter is quietest at 44 dB. The LW8024RSMX, renewed LW8024RSMY, dual inverter and 6,000 BTU model all offer Wi-Fi. For more window unit options in this size, see our 8,000 BTU window air conditioner roundup.
FAQ
How big a room does an 8,000 BTU LG air conditioner cool?
The LG listings put it at up to 350 square feet, roughly a 14 by 25 foot room.
Which LG window AC is the quietest?
The 8,500 BTU dual inverter, at as low as 44 dB in sleep mode.
Can I install a through-the-wall LG unit in a window?
No. The listing says it is not properly vented for a standard window and needs a wall sleeve.
Do LG smart air conditioners work with Alexa?
Yes. The LW8024RSMX, LW8024RSMY, dual inverter and LW6024RSMX list Alexa and Google compatibility.
What is the difference between LW8024RSMX and LW8024RSMY?
Both are 8,000 BTU smart window units. The RSMY here is a renewed unit and lists Auto Clean and a dry mode.
Which LG air conditioner should I buy?
For a quiet bedroom, the dual inverter. For simple smart control, the LW8024RSMX. For basic cooling, the LW8024RD.
