As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are comparing the lg 18000 btu window air vs 14 BTU wall unit from LG. Both models operate on 230V power and include remote controls for easy adjustment. They also feature auto restart capabilities after power outages. The main difference lies in their installation style and cooling capacity. The window unit offers heating functions and covers a larger area, while the wall unit is designed for through-the-wall mounting and focuses on cooling efficiency for smaller spaces.
Cooling Capacity
18,000 BTU
14,000 BTU
Coverage Area
1,000 Sq. Ft.
700 Sq. Ft.
Operating Modes
Heating and Cooling
Cooling only
Fan Speeds
2 speeds
3 speeds
Weight
126 pounds
77 pounds
Installation Type
Window
Through the Wall
Choose the first if
- You need to cool a larger room up to 1,000 square feet.
- You want supplemental heating for cooler days.
- You have a window installation ready.
Choose the second if
- You prefer a through-the-wall mounting option.
- You need more fan speed options for air flow customization.
- You are cooling a smaller space under 700 square feet.
Verdict
Choose the 18,000 BTU window unit if you need heating capability and cover a larger area. Select the 14,000 BTU wall unit for smaller rooms where through-the-wall installation is preferred. Both models provide reliable cooling with remote control convenience.
Coverage and Heating Specs Compared
Coverage Area
Edge: LG 18,000 BTU Window Air Conditioner with Heat
The LG 18,000 BTU Window Air Conditioner with Heat covers up to 1,000 square feet, making it suitable for larger bedrooms, living rooms, or basements. In contrast, the LG 14,000 BTU Through the Wall Air Conditioner is rated for 700 square feet. If you need to cool a larger open space or a bigger room, the 18,000 BTU model provides more capacity. The 14,000 BTU unit is better suited for medium-sized rooms where a lower cooling output is sufficient. Choose the larger unit if your space exceeds 700 square feet.
Operating Modes
Edge: LG 18,000 BTU Window Air Conditioner with Heat
The LG 18,000 BTU Window Air Conditioner with Heat includes a supplemental heat option, allowing you to warm your space on cooler days. This dual functionality makes it an AC and heater combo. The LG 14,000 BTU Through the Wall Air Conditioner focuses solely on cooling and fan speeds, with no heating capability mentioned in its specifications. If you live in an area with cold winters or transitional seasons, the heating feature of the window unit adds significant value. For cooling-only needs, the wall unit remains a solid choice.
Fan Speeds
Edge: LG 14,000 BTU Wall AC
Both units offer customizable airflow, but they differ in the number of available speeds. The LG 18,000 BTU Window Air Conditioner provides two cooling speeds, two heating speeds, and fan-only speeds. The LG 14,000 BTU Through the Wall Air Conditioner offers three cooling speeds and fan speeds, along with an Auto Cool mode. The wall unit gives you more granular control over cooling intensity with its three distinct settings. The window unit balances cooling and heating options with fewer speed choices in each mode.
Build and Weight
Edge: LG 14,000 BTU Wall AC
Physical dimensions and weight vary significantly between these two models. The LG 18,000 BTU Window Air Conditioner weighs 126 pounds and measures 30.5 inches in length, 25.5 inches in width, and 16.8 inches in height. The LG 14,000 BTU Through the Wall Air Conditioner is much lighter at 77 pounds, with dimensions of 20.1 inches in length, 24 inches in width, and 14.4 inches in height. The wall unit is easier to handle during installation due to its lower weight and more compact footprint.
Features and Controls
Edge: Tie
Both models include remote controls, digital panels, and 24-hour timers for scheduling. The LG 18,000 BTU Window Air Conditioner comes with a filter light reminder and a removable, washable filter. The LG 14,000 BTU Through the Wall Air Conditioner also includes a filter light reminder, washable filter, and a trim kit for installation. Both feature four-way air deflection for flexible airflow direction. Since both provide essential usability features and remote operation, there is no clear advantage in this category based on the available data.
Which LG model fits your space
Large room owner needing heat
Our pick: LG 18,000 BTU Window Air Conditioner with Heat
You need to cool a 1,000 square foot area. This 18,000 BTU unit handles that space. It also provides supplemental heating for cooler days. The 230V power supports this higher capacity. You get four-way air deflection for even distribution. The remote control lets you adjust settings from a distance.
Small room owner on a budget
Our pick: LG 14,000 BTU Wall AC
You only need to cool up to 700 square feet. This 14,000 BTU model is sufficient for that coverage. It is lighter at 77 pounds, making handling easier. The 3 cooling speeds offer precise control. You can set the thermostat between 60°F and 86°F. The included trim kit simplifies the wall installation process.
User wanting flexible airflow
Our pick: LG 18,000 BTU Window Air Conditioner with Heat
You want maximum control over air direction. This window unit features 4-way air deflection. It offers two speeds for cooling, heating, and fan modes. The digital control panel is easy to read. You can set a 24-hour timer for convenience. The removable, washable filter helps maintain air quality with less effort.
LG 18,000 BTU Window Air Conditioner with Heat
Best for: Medium rooms needing cooling and heating
- Cooling Capacity
- 18,000 BTU
- Coverage Area
- up to 1,000 sq ft
- Control Method
- Remote, digital control panel
- Voltage
- 230/208V
- Operating Modes
- Cooling, heating, fan
- Fan Speeds
- 2
This LG unit cools up to 1,000 square feet with 18,000 BTUs of cooling power. It also provides supplemental heating for cooler days. The 230/208V voltage requires a specific NEMA 6-20 plug. You get a remote, digital controls, and a 24-hour timer. It weighs 126 pounds. This model suits medium rooms like bedrooms or basements that need both cooling and heating options.
- 18,000 BTU capacity cools rooms up to 1,000 square feet
- Dual cooling and heating modes for year-round comfort
- Includes remote control and 24-hour timer for easy operation
- Auto restart feature restores settings after power failure
- Heavier at 126 pounds compared to smaller units
- Requires a special 230/208V NEMA 6-20 plug for operation
- Covers 1,000 square feet, which is less than larger 23,000 BTU models
- You need a single unit for both cooling and heating
- You have a 230/208V outlet available for installation
- You want to cool a medium room up to 1,000 square feet
- You only have standard 115V outlets and cannot install a 230V line
- You need to cool a large open space exceeding 1,000 square feet
- You prefer a through-the-wall installation over a window mount
Verdict: LG 18,000 BTU Window AC with Heat delivers solid cooling and heating for medium rooms. It fits buyers who need dual functionality and have the correct 230/208V electrical setup for installation.
LG 14,000 BTU Wall AC
Best for: medium rooms up to 700 sq. ft.
- Cooling Capacity
- 14,000 BTU
- Coverage Area
- 700 sq ft
- Control Method
- remote, electronic
- Voltage
- 230/208V
- Fan Speeds
- 3
- Room
- Bedrooms
This LG wall-mounted air conditioner delivers 14,000 BTU of cooling power for rooms up to 700 square feet. It operates on 230/208V power and includes a remote control for easy adjustments. The unit features three fan speeds and a 24-hour timer. It is designed for bedrooms, living rooms, and apartments. You get a washable filter and auto-restart capability. This model is ideal for medium-sized spaces requiring dedicated wall installation.
- 14,000 BTU cooling capacity for medium rooms
- Cools areas up to 700 square feet
- Includes remote control and digital panel
- Three fan speeds with Auto Cool mode
- Lower 14,000 BTU capacity compared to the 18,000 BTU option on this list
- Heavier 77-pound build requires sturdy wall mounting
- Requires specific 230/208V LCDI plug (NEMA 6-20)
- You need to cool a room up to 700 square feet
- You have a 230/208V electrical outlet available for wall installation
- You prefer a wall-mounted unit over a window model
- You require heating capabilities in addition to cooling
- You only have standard 115V outlets available
- You need to cool a space larger than 700 square feet
Verdict: LG 14,000 BTU Wall AC suits buyers who need reliable cooling for medium rooms up to 700 square feet and have the correct 230/208V wiring for wall installation.
Specifications side by side
| Spec | LG 18,000 BTU Window Air Conditioner with Heat | LG 14,000 BTU Wall AC |
|---|---|---|
| Cooling Capacity | 18,000 BTU | 14,000 BTU |
| Coverage Area | up to 1,000 sq ft | 700 sq ft |
| Control Method | Remote, digital control panel | remote, electronic |
| Voltage | 230/208V | 230/208V |
| Operating Modes | Cooling, heating, fan | – |
| Fan Speeds | 2 | 3 |
| Room | Bedrooms | Bedrooms |
| Features | Timer, 24-Hour Timer, Remote | Remote |
| Room Type | Bedroom, Living Room, Apartment, Basement | Bedroom, Living Room, Apartment |
| Color | Bright White | White |
| Size | 18,000 BTU | 14,000 BTU |
| Operating Mode | Heater | – |
| Dimensions | 30.5 × 25.5 × 16.8 inches | 20.1 × 24 × 14.4 inches |
| Weight | 126 pounds | 77 pounds |
| Model | LW1823HR | LT1430CNR |
Frequently asked questions
Can the LG 18,000 BTU unit heat my room?
Yes, this model includes heating functionality. It operates as both an air conditioner and a heater, making it suitable for year-round comfort. You can use it to warm medium-sized spaces like bedrooms or basements when temperatures drop. This dual capability removes the need for a separate heating device in your setup.
What is the weight difference between the two LG models?
The 18,000 BTU window unit weighs 126 pounds, while the 14,000 BTU wall unit weighs 77 pounds. The heavier window model is significantly more substantial. This difference affects installation requirements and the structural support needed for your window or wall opening. You must ensure your installation site can handle the specific weight.
Do both units come with a remote control?
Yes, both the 18,000 BTU window model and the 14,000 BTU wall model include remote controls. You can adjust settings from a distance using these devices. This feature allows for convenient operation without needing to access the unit directly. Both models support remote control for consistent user convenience.
How wide is the LG 18,000 BTU window air conditioner?
The LG 18,000 BTU window air conditioner measures 25.5 inches in width. This dimension is important for ensuring the unit fits your window frame or installation space. You should measure your opening carefully before purchase. The width, along with height and length, determines the physical fit for your specific room setup.
Is the LG 14,000 BTU unit suitable for large living rooms?
The 14,000 BTU wall unit is rated for coverage up to 700 square feet. It is designed for medium rooms such as bedrooms or living rooms. If your living room exceeds this size, the unit may struggle to maintain consistent temperatures. You should verify your room's square footage against this rating before buying.
What voltage do these LG air conditioners require?
Both the 18,000 BTU window unit and the 14,000 BTU wall unit require 230V power. You must have the correct electrical outlet and wiring in place for installation. Standard 115V outlets are not sufficient for these models. Ensure your home has the necessary 230V setup to operate either unit safely and effectively.
Which LG model is lighter and easier to move?
The LG 14,000 BTU wall unit is lighter at 77 pounds compared to the 126-pound window model. Its lower weight makes it easier to handle during installation or maintenance. If you anticipate needing to move or service the unit frequently, the lighter wall model offers a practical advantage in terms of physical effort.