Choosing the best quiet through the wall air conditioner can enhance your home comfort without noisy distractions. These units are ideal for cooling bedrooms, living rooms, and apartments with minimal sound and efficient energy use. Below is a summary table featuring top-rated options selected for their cooling capacity, quiet operation, and smart features.
Product | Cooling Capacity | Smart Features | Included Accessories |
---|---|---|---|
LG 10,000 BTU Through the Wall Air Conditioner | 10,000 BTU (up to 440 sq. ft.) | Remote Control | None |
TCL H12T9E1-A 12,000 Smart Through-The-Wall Air Conditioner | 12,000 BTU (up to 550 sq. ft.) | Alexa/Google Assistant Compatible, Remote | None |
OLMO 12,000 BTU 115V Through-the-Wall Air Conditioner | 12,000 BTU | Built-In Wireless Smart Kit, Remote | Wall Sleeve Included |
Frigidaire Through-the-Wall Air Conditioner 12,000 BTU | 12,000 BTU (up to 550 sq. ft.) | Remote Control | Slide-Out Chassis |
OLMO TTW 12,000 BTU 230V Through-the-Wall Air Conditioner | 12,000 BTU | Remote, Smart Kit | Wall Sleeve Not Included |
Content Navigation
- LG 10,000 BTU Through the Wall Air Conditioner
- TCL H12T9E1-A 12,000 Smart Through-The-Wall Air Conditioner
- OLMO 12,000 BTU 115V Through-the-Wall Air Conditioner with Sleeve
- Frigidaire Through-the-Wall Room Air Conditioner 12,000 BTU
- OLMO TTW 12,000 BTU 230V Through-the-Wall Air Conditioner
- Buying Guide for Quiet Through the Wall Air Conditioners
LG 10,000 BTU Through the Wall Air Conditioner

The LG 10,000 BTU wall air conditioner is designed for cooling rooms up to 440 square feet with a quiet operation emphasized by 3 cooling speeds and 3 pre-programmed modes. Utilizing energy-efficient R-32 refrigerant and an impressive energy efficiency ratio (EER) of 10.7, this unit minimizes power consumption. It features a turbo fan for rapid cooling and energy saver mode that circulates air while disabling the compressor when desired temperature is reached.
- 4-way air deflection for targeted airflow
- Dry mode extracts up to 2.9 pints of moisture hourly
- Wall-mounted installation only; not suitable for window use
- Includes a remote control for convenient operation
TCL H12T9E1-A 12,000 Smart Through-The-Wall Air Conditioner

With 12,000 BTU cooling power, the TCL H12T9E1-A covers up to 550 square feet and offers smart home integration for modern convenience. It supports voice commands through Amazon Alexa and Google Assistant, allowing users to adjust settings hands-free. The built-in dehumidifier improves indoor air quality by reducing moisture via Dry Mode.
- Remote control included
- Ideal for medium-sized bedrooms, living rooms, or offices
- Multiple cooling and fan settings for personalized comfort
- Smart device compatibility for effortless management
OLMO 12,000 BTU 115V Through-the-Wall Air Conditioner with Sleeve

This OLMO 12,000 BTU unit offers a practical cooling-only solution for rooms needing efficient temperature control. Running on 115V power and charged with eco-friendly R-32 refrigerant, it comes with a wall sleeve included for complete installation readiness. The built-in wireless smart kit and remote enhance control accessibility and convenience.
- Designed for residential, commercial, and hotel settings
- Remote and smart controls enable easy operation
- Requires standard 115V electrical receptacle
- Wall sleeve included to simplify setup
Frigidaire Through-the-Wall Room Air Conditioner 12,000 BTU

The Frigidaire 12,000 BTU air conditioner excels at efficiently cooling rooms up to 550 square feet. Its wall-mount design features a slide-out chassis for easy installation and maintenance. The washable mesh filter traps dust, maintaining the unit’s performance and indoor air quality.
- Remote control included for user convenience
- Ideal for medium to large rooms
- Durable design tailored specifically for through-the-wall installation
- Easy filter cleaning to extend unit lifespan
OLMO TTW 12,000 BTU 230V Through-the-Wall Air Conditioner

The OLMO TTW 12,000 BTU model is a high-capacity air conditioner designed for 230V power supply environments. It uses the advanced R-32 refrigerant and provides strong cooling suitable for residential as well as commercial spaces. This unit includes a remote and built-in smart kit but does not include a wall sleeve, requiring separate purchase for installation.
- Powerful 12,000/11,700 BTU cooling capacity
- Remote control and smart functionality included
- Requires 230V electrical outlet
- Wall sleeve sold separately; verify compatibility before purchase
Buying Guide for Quiet Through the Wall Air Conditioners
When selecting a quiet through the wall air conditioner, several factors ensure you get the best fit for your space and needs:
- Cooling Capacity: Choose a BTU rating suitable for your room size. For small bedrooms, 9,000–10,000 BTU suffices; larger rooms or open areas may require 12,000 BTU or more.
- Noise Levels: Look for units designed for quiet operation, featuring multiple fan speeds and noise reduction technology to maintain comfort without disruption.
- Energy Efficiency: Models with high EER ratings and eco-friendly refrigerants like R-32 offer better energy savings and environmental benefits.
- Installation Requirements: Ensure the unit’s voltage compatibility matches your home’s electrical system and whether the wall sleeve is included or must be purchased.
- Smart Features: Consider units with remote controls, programmable timers, and smart home compatibility (Alexa, Google Assistant) for convenience.
- Additional Functions: Features such as dehumidification (Dry Mode), multiple fan speeds, and air filtration can enhance indoor air quality and comfort.
- Maintenance: Easy access to washable filters simplifies cleaning and unit upkeep, which prolongs performance and efficiency.
Assessing these aspects based on your room size, installation type, and desired features will help you select the best quiet through the wall air conditioner to keep your space cool and peaceful.