Finding the best 14000 BTU through the wall air conditioner can significantly improve your indoor comfort by efficiently cooling medium to large rooms. These units are designed to fit through wall openings, saving window space while delivering powerful cooling performance. Below is a comparison of the top 5 wall air conditioners with 14000 BTU capacity, highlighting features such as heating function, smart home compatibility, energy efficiency, and noise levels.
Model | Brand | Cooling Area | Special Features |
---|---|---|---|
TCL H14T9XH 14000 BTU | TCL | Up to 700 sq ft | Heat, dehumidifier, smart home compatible |
OLMO TTW 14,000 BTU Cooling Only | OLMO | Residential & commercial use | R32 refrigerant, 230V power |
OLMO 14,000 BTU Cooling & Heating | OLMO | Residential & commercial use | Heater included, smart kit, wall sleeve included |
Durastar DRTAC142XNA1 14000 BTU | Durastar | 550-700 sq ft | Digital display, timer, energy saver |
LG 14,000 BTU DUAL Inverter | LG | Up to 700 sq ft | Ultra-quiet, energy efficient, smart control |
TCL H14T9XH Heat 14,000 Smart Through-The-Wall Air Conditioner

The TCL H14T9XH model offers a versatile cooling and heating solution with a 14,000 BTU cooling capacity and an 8,600 BTU heating function. It effectively cools or heats rooms up to 700 square feet. Equipped with a built-in dehumidifier, it helps improve air quality by reducing moisture and preventing odors. Its smart home integration works with Amazon Alexa and Google Assistant, enabling voice control and remote adjustments. The included remote control adds convenience, making it suitable for year-round use in homes or offices.
OLMO TTW 14,000 BTU 230V Through-the-Wall Air Conditioner

The OLMO TTW 14,000 BTU air conditioner is designed specifically for cooling, equipped with a 14,000/13,600 BTU cooling capacity and charged with eco-friendly R-32 refrigerant. It operates on 230V power, ideal for residential, commercial, or hotel use. Note that the wall sleeve for installation is not included and must be purchased separately. This unit offers reliable cooling tailored to environments requiring a strong air conditioner with clean refrigerant technology.
OLMO 14,000 BTU 230V Through-the-Wall Air Conditioner with Heating

This version of the OLMO 14,000 BTU includes both cooling and heating capabilities, delivering a 14,000/13,600 BTU cooling and 10,600/8,600 BTU heating output. It runs on 208/230V power with R-32 refrigerant, demonstrating energy-conscious design. The package comes with the wall sleeve included, streamlining installation. Its smart kit and remote control enhance usability for different climates, supporting both hot summer cooling and cold weather heating in mid-sized spaces.
Durastar DRTAC142XNA1 14,000 BTU 208/230V Through the Wall AC

The Durastar DRTAC142XNA1 efficiently cools rooms sized 550 to 700 square feet with a 14,000 BTU capacity. It requires a 230V outlet and features an LCDI-compatible plug for safety. This model includes digital controls, a 24-hour timer, sleep mode, and an energy saver function. The unit also offers a built-in dehumidifier and remote control, allowing flexible scheduling and energy-conscious operation for medium to large rooms.
LG 14,000 BTU DUAL Inverter Smart Window Air Conditioner

The LG 14,000 BTU DUAL Inverter model highlights ultra-quiet operation with noise levels as low as 44dB and superior energy efficiency, exceeding ENERGY STAR standards by up to 35%. It cools areas up to 700 square feet and integrates with LG ThinQ technology for remote control through smartphone apps. It also supports Amazon Alexa and Google Assistant voice commands. This unit provides advanced inverter technology for efficient, silent cooling plus smart, convenient control.
Buying Guide For 14000 BTU Through The Wall Air Conditioners
Choosing the right 14000 BTU through the wall air conditioner depends on several key factors to ensure efficient cooling and usability:
- Cooling Capacity and Room Size: Confirm the unit’s BTU value matches your room size — typically 700 sq ft for 14000 BTU models.
- Power Requirements: Many 14000 BTU units require 208/230V outlets instead of standard 115V; verify your electrical setup before ordering.
- Heating Capability: Consider models with heating for year-round comfort if you need both cooling and warmth.
- Smart Features: Integration with Alexa, Google Assistant, or proprietary apps allows for convenient voice and remote control.
- Installation Accessories: Check if the wall sleeve is included or sold separately — a critical part for proper installation.
- Energy Efficiency: Look for units using R-32 refrigerant and inverter technology for lower energy consumption and environmental impact.
- Noise Level: If quiet operation is essential, focus on inverter models designed to minimize noise during sleep or low-speed modes.
- Additional Functions: Features like dehumidification, 24-hour timers, auto restart, and multiple fan speeds enhance comfort and ease of use.
Overall, balance power, efficiency, and extra features to find a through-the-wall air conditioner that meets your space and lifestyle needs.