When it comes to cooling your home efficiently without sacrificing space or aesthetics, through the wall air conditioners provide a practical solution. Designed to be installed directly into an exterior wall, these units save window space and offer powerful cooling capabilities ideal for rooms of various sizes. Below is a comparison table of top-rated through the wall air conditioners available on Amazon, helping you compare key features like cooling capacity, energy efficiency, and smart controls at a glance.
Product | BTU Cooling Capacity | Suitable Room Size | Key Features |
---|---|---|---|
LG 10,000 BTU Through the Wall Air Conditioner | 9,800 | Up to 440 sq. ft. | Energy Efficient R-32 Refrigerant, 3 Cool/Fan Speeds, Energy Saver Mode |
TCL H12T9E1-A 12,000 BTU Smart Through-The-Wall AC | 12,000 | Up to 550 sq. ft. | Built-In Dehumidifier, Smart Home Compatible, Remote Control |
BLACK+DECKER 18,000 BTU Window or Through The Wall AC | 18,000 | Up to 1,000 sq. ft. | Multiple Cooling Speeds, Sleep Mode, Energy Saver Mode |
OLMO 12,000 BTU 115V Through-the-Wall Air Conditioner | 12,000 | Residential and Commercial Use | Includes Wall Sleeve, Remote Control, R-32 Refrigerant |
Frigidaire 12,000 BTU Built-In Room Wall Air Conditioner | 12,000 | Medium Rooms | Air Ionizer, Washable Filter, Multi-Speed Fan |
Content Navigation
- LG 10,000 BTU Through the Wall Air Conditioner
- TCL H12T9E1-A 12,000 Smart Through-The-Wall Air Conditioner
- BLACK+DECKER 18,000 BTU Window or Through The Wall Air Conditioner
- OLMO 12,000 BTU 115V Through-the-Wall Air Conditioner
- Frigidaire 12,000 BTU Built-In Room Wall Air Conditioner
- Buying Guide For Through The Wall Air Conditioners
LG 10,000 BTU Through the Wall Air Conditioner

The LG 10,000 BTU Through the Wall AC is designed to cool rooms up to 440 square feet efficiently. It uses energy-saving R-32 refrigerant, which is one of the most environmentally friendly options and boasts an energy efficiency ratio (EER) of 10.7. Its three cooling speeds and fan modes provide customizable airflow to suit different comfort needs. The energy saver mode cycles the compressor off when the desired temperature is reached while keeping the fan running to circulate air, which helps reduce electricity use. Additionally, its dry mode removes moisture to improve room comfort, and the 4-way air deflection allows you to direct airflow precisely.
TCL H12T9E1-A 12,000 Smart Through-The-Wall Air Conditioner

This TCL 12,000 BTU unit cools areas up to 550 square feet and integrates smart features making it ideal for tech-savvy users. It supports voice commands via Amazon Alexa and Google Assistant, allowing easy remote operation. It also functions as a built-in dehumidifier to control humidity and enhance air quality. The remote control lets users conveniently switch between cooling, fan, and dry modes. The unit’s cooling power and size make it suitable for medium-sized bedrooms, offices, or living rooms.
BLACK+DECKER 18,000 BTU Window or Through The Wall Air Conditioner

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Offering a powerful 18,000 BTU cooling capacity, this BLACK+DECKER unit is suited for larger rooms and living spaces up to 1,000 square feet. It operates on four different levels including auto, low, medium, and high speed to provide customized comfort. The remote-controlled unit includes sleep and energy saver modes, along with a 24-hour timer for convenience and energy management. Its dual installation option (window or through-the-wall) adds to its versatility, though it’s commonly chosen for wall setups.
OLMO 12,000 BTU 115V Through-the-Wall Air Conditioner

The OLMO 12,000 BTU model is designed specifically for 115V power outlets and is suitable for residential, commercial, or hotel use. It includes a wall sleeve for easy installation and is charged with R-32 refrigerant for better energy efficiency and eco-friendliness. This unit offers cooling capacity ideal for medium spaces and features remote control for ease of use. Before purchasing, checking your power receptacle compatibility is recommended.
Frigidaire 12,000 BTU Built-In Room Wall Air Conditioner

The Frigidaire 12,000 BTU air conditioner offers customizable comfort with its three-speed fan. Its built-in air ionizer helps reduce airborne particles, enhancing indoor air quality. The unit features an easy-to-clean washable filter to trap dust and maintain performance efficiency. Suitable for medium-sized rooms, this unit combines cooling power with air purification features, making it a versatile wall air conditioner.
Buying Guide For Through The Wall Air Conditioners
Choosing the right through the wall air conditioner depends on several key factors:
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- Cooling Capacity (BTUs): Match the BTU rating to your room size for optimal performance. For example, 9,000-12,000 BTUs suit rooms up to 550 sq. ft., while 18,000 BTUs can cool spaces up to 1,000 sq. ft.
- Energy Efficiency: Look for units using modern refrigerants like R-32 and high Energy Efficiency Ratios (EER) to reduce energy consumption and environmental impact.
- Installation Requirements: Confirm wall thickness and electrical compatibility (115V vs. 230V) before purchase. Some units may require additional components such as wall sleeves.
- Smart Features & Controls: Remote control capability and smart-home integration can add convenience, allowing easier temperature adjustments and mode switching.
- Additional Functions: Modes like energy saver, dry/dehumidify, air ionizer, and multi-speed fan settings enhance usability and comfort.
- Maintenance: Choose models with washable filters and easy access for cleaning to maintain performance and air quality.
By considering room size, energy use, installation logistics, and desired features, you can select the best through the wall air conditioner suited for your home or workspace cooling needs.