If you’re looking to cool a medium to large room efficiently, a 14000 BTU through the wall air conditioner offers an excellent balance of power and convenience. These units are perfect for homes, apartments, or offices needing robust temperature control without occupying window space. Below is a summary table presenting some top-rated options, followed by detailed reviews to help you find the right fit for your needs.
| Product | Cooling Capacity | Special Features | Ideal Room Size |
|---|---|---|---|
| TCL H14T9XH Wall AC | 14,000 BTU | Heater, Dehumidifier, Alexa/Google Compatible | Up to 700 sq. ft. |
| OLMO TTW Cooling Only | 14,000 BTU | R-32 Refrigerant, Built-in Smart Kit | Residential/Commercial |
| OLMO TTW Cooling & Heating | 14,000 BTU Cooling / 8,600 BTU Heating | Smart Kit, Wall Sleeve Included | Residential/Commercial |
| Durastar DRTAC142XNA1 | 14,000 BTU | Energy Saver, Dehumidifier, Sleep Mode | 550-700 sq. ft. |
| LG 10,000 BTU Wall AC | 9,800 BTU | Energy Efficient, 3 Speeds, Dry Mode | Up to 440 sq. ft. |
Content Navigation
- TCL H14T9XH Heat 14,000 BTU Through-The-Wall Air Conditioner
- OLMO TTW 14,000 BTU 230V Through-the-Wall Air Conditioner
- OLMO 14,000 BTU Through-the-Wall Air Conditioner with Heat & Wall Sleeve
- Durastar DRTAC142XNA1 14,000 BTU Through the Wall Air Conditioner
- LG 10,000 BTU Through the Wall Air Conditioner
- Buying Guide For 14000 BTU Through The Wall Air Conditioners
TCL H14T9XH Heat 14,000 BTU Through-The-Wall Air Conditioner

The TCL H14T9XH is a versatile 14,000 BTU through-the-wall air conditioner equipped with an 8,600 BTU heater, making it suitable for year-round use. It efficiently cools and heats rooms up to 700 square feet. Its built-in dehumidifier mode helps improve air quality by reducing moisture and preventing odors. The unit also supports smart home integration, compatible with Amazon Alexa and Google Assistant for voice-controlled convenience. The remote control offers ease of operation, adjusting temperature and fan modes without needing to approach the unit physically.
OLMO TTW 14,000 BTU 230V Through-the-Wall Air Conditioner

The OLMO TTW 14,000 BTU is a cooling-only through-the-wall air conditioner designed for residential, commercial, and hotel applications. Working on 230V, it uses eco-friendly R-32 refrigerant and is recognized for strong cooling capacity. Please note that the wall sleeve is sold separately and is required for installation. The system is made for 1-phase, 60Hz electrical inputs, so verifying compatibility with your power outlet is essential before buying.
OLMO 14,000 BTU Through-the-Wall Air Conditioner with Heat & Wall Sleeve

This dual-function OLMO unit combines 14,000 BTU cooling with 8,600 BTU heating capabilities, making it ideal for four-season comfort in both commercial and residential settings. It operates on 208/230V power with R-32 refrigerant, featuring a remote control and including the wall sleeve to simplify installation. This model supports cooling and heating in one, ensuring comfort with energy-efficient technology.
Durastar DRTAC142XNA1 14,000 BTU Through the Wall Air Conditioner

The Durastar DRTAC142XNA1 offers 14,000 BTU cooling capacity covering 550-700 square feet, running on 230V power. It features an energy efficiency ratio (EER) of 9.4 and includes useful modes such as sleep mode, energy saver, and a dehumidifier function. Control is via an included remote, and installation requires a compatible 230V outlet. It also boasts a digital display control panel and a 6.5-foot power cord for flexible placement.
LG 10,000 BTU Through the Wall Air Conditioner

The LG 10,000 BTU through the wall air conditioner is slightly less powerful than the others but notable for energy efficiency and reliable performance in spaces up to 440 square feet. It uses R-32 refrigerant, which is more environmentally friendly, and offers three cooling speeds with a turbo fan feature. Additional modes include energy saver and dry mode to remove moisture effectively. The unit’s 4-way air deflection provides customizable airflow direction.
Buying Guide For 14000 BTU Through The Wall Air Conditioners
Choosing the right through-the-wall air conditioner involves several important factors:
- Cooling Capacity: Ensure the BTU rating matches your room size. A 14,000 BTU unit effectively cools 550 to 700 square feet.
- Voltage Compatibility: Many 14,000 BTU units operate on 230V, requiring compatible outlets and proper wiring.
- Heating Feature: Some models offer both heating and cooling, increasing year-round usability.
- Energy Efficiency: Look for units with high Energy Efficiency Ratios (EER) and environmentally friendly refrigerants like R-32.
- Installation Requirements: Verify if a wall sleeve is included or needs separate purchase. Proper installation ensures optimal performance.
- Smart Technology & Controls: Remote control, voice assistant compatibility, and programmable timers add convenience.
- Additional Features: Dehumidification, sleep modes, and noise levels impact comfort and air quality.
By considering these aspects, you can select a 14,000 BTU through-the-wall air conditioner that best fits your cooling needs and home setup.