Choosing the best through the wall air conditioner with heat 115V can significantly improve your home’s comfort throughout the year. These units offer both cooling and heating capabilities, ideal for maintaining a cozy environment regardless of the season. Below is a summary of some top models with key features to help you find an efficient, reliable system that fits your space and electrical specifications.
| Model | BTU Capacity | Heating & Cooling | Special Features |
|---|---|---|---|
| OLMO 8,000 BTU Through-the-Wall Air Conditioner & Heat | 8,000 BTU Cooling / 4,200 BTU Heating | Yes | Wall sleeve included, R-32 refrigerant, wireless smart kit |
| LG 10,000 BTU Through the Wall Air Conditioner | 9,800 BTU Cooling | No heating | Energy efficient, multiple cooling speeds and modes |
| Keystone 8,000 BTU Wall Mounted Air Conditioner with Heater | 8,000 BTU Cooling / 4,200 BTU Supplemental Heating | Yes | Dehumidifier function, space-saving design |
| Midea 12,000 BTU Smart Inverter AC with Heat | 12,000 BTU Cooling | Yes | Smart controls, energy star rated, inverter technology |
| ROVSUN 11,500 BTU WiFi Enabled Mini Split AC & Heater | 11,500 BTU Cooling / Heating | Yes | WiFi & voice control, inverter tech, all-season use |
OLMO 8,000 BTU 115V Through-the-Wall Air Conditioner & Heat System

The OLMO 8,000 BTU Through-the-Wall Air Conditioner & Heat System effectively combines cooling and heating functions with 8,000 BTU/h for cooling and 4,200 BTU/h for heating. Designed for 115V, 1 phase, 60Hz electrical systems, it uses eco-friendly R-32 refrigerant. This model includes a wall sleeve for easy installation and comes with a remote control plus a built-in wireless smart kit, enhancing user convenience. Its versatile capacity makes it suitable for residential or commercial use such as hotel rooms.
LG 10,000 BTU Through the Wall Air Conditioner, 115V

This LG 10,000 BTU Through the Wall Air Conditioner is optimized for cooling spaces up to 440 square feet. It features an energy-efficient design with a high Energy Efficiency Ratio (EER) of 10.7 and utilizes R-32 refrigerant. With three cooling speeds and three preset modes, including Energy Saver and Dry modes, it provides flexible airflow with 4-way air deflection. Note that it is designed exclusively for through-the-wall installation and does not include heating functionality.
Keystone 8,000 BTU Wall Mounted AC with Supplemental Heat

The Keystone 8,000 BTU Wall Mounted Air Conditioner incorporates supplemental heating alongside its cooling function, suitable for rooms up to 350 square feet. It also features a dehumidifier, fan circulation, and easy installation with an interior trim kit. The supplemental heat mode is designed to support temperatures between 23°F and 76°F and serves as a secondary heat source. Its wall-mounted design saves window space while providing consistent climate control.
Midea 12,000 BTU Smart Inverter AC with Heat and Dehumidifier

The Midea 12,000 BTU Smart Inverter Air Conditioner with Heat offers robust performance for larger rooms up to 550 square feet. This energy-star rated unit supports five modes including heat, cool, dry, auto, and fan. Its variable-speed inverter pump ensures up to 35% energy savings compared to traditional models. The unit comes with an LED display, remote, and smart home app compatibility, including voice control via Alexa and Google Assistant. It also features an automatic shutoff and defrost control for durability.
ROVSUN 11,500 BTU WiFi Mini Split AC & Heater with Inverter

The ROVSUN 11,500 BTU WiFi Enabled Mini Split Air Conditioner & Heater is an advanced all-season system with heating, cooling, dehumidification, and fan functions. Its 17 SEER2 inverter technology ensures 25% better energy savings than standard units. The system supports WiFi connectivity and voice control via Alexa and Google Assistant, allowing remote temperature adjustments. It also includes features such as automatic defrosting, sleep mode, ECO mode, and self-diagnosis for convenient, efficient climate management year-round.
Buying Guide for Through the Wall Air Conditioners with Heat 115V
BTU Capacity and Room Size Compatibility
Evaluate the BTU cooling and heating capacity of the unit relative to the size of your room. Underpowered air conditioners may struggle to maintain the desired temperature, while oversized units could waste energy. Typically, 8,000 to 12,000 BTU capacity suits small to medium rooms ranging from 350 to 550 square feet.
Electrical Requirements
Ensure the air conditioner matches your electrical system, specifically 115V, single phase, and 60Hz compatibility. Confirm that your existing outlets and wiring can safely handle the unit’s power demands to prevent electrical hazards or the need for costly upgrades.
Heating Capabilities and Climate Considerations
For all-season comfort, consider models that include heat pumps or supplemental heating modes. Note the type of heating offered; some are supplemental and not intended to replace primary heat sources. Also, review temperature operating ranges for heating functionality.
Installation Features
Wall sleeve inclusion simplifies installation and provides a proper seal. Units designed specifically for through-the-wall installation offer better performance than window-mounted AC units retrofitted for wall use. Also consider ease of installation kits and trim options.
Energy Efficiency and Refrigerant Type
Look for units using the modern R-32 refrigerant, which is more environmentally friendly and energy efficient. Check the Energy Efficiency Ratio (EER) or Seasonal Energy Efficiency Ratio (SEER) ratings to compare energy consumption. Energy Star certifications indicate better efficiency and potential cost savings.
Smart Features and Controls
Many modern units offer remote controls, programmable timers, and smart connectivity (WiFi, voice assistants). These features add convenience and allow users to manage climate settings remotely, improving comfort and potentially lowering energy costs.
Noise Level
Consider units with quiet operation modes if noise is a concern, especially for bedrooms or living areas. Some air conditioners advertise mute or sleep modes to minimize sound disturbance.
Additional Functionalities
Extra features such as dehumidification, multiple fan speeds, sleep mode, and auto-defrost increase comfort and device versatility. Dehumidifiers help maintain indoor air quality, especially in humid climates.
By considering these aspects, you can select a through-the-wall air conditioner with heating that meets your specific needs, ensuring reliable comfort and efficiency throughout the year.