Read on for our list of the best wall mounted air conditioner heater combo.
Our Editor’s Best Wall Mounted Air Conditioner Heater Combo Reviews
Koldfront WTC8001W 8,000 BTU Through the Wall Air Conditioner with 3500 BTU Heater

Key Features:
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This wall mounted air conditioner heater combo has a cooling capacity of 8,000 BTUs and a heating capacity of 4,200 BTUs. It measures 14.5″ H x 24.2″ W x 20.3″ D.
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This wall mounted air conditioner heater combo is for a shopper who needs a unit to cover a 300-350 square foot area. The unit comes with a remote control and has a 2 year warranty.
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The wall mounted air conditioner heater combo has 4-way air directional louvers and three fan speeds. It also has four operation modes.
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The wall mounted air conditioner heater combo is a device that can be used to heat or cool a room. It is compatible with the Koldfront wall air conditioner sleeve (WTCSLV) sold separately.
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This wall mounted air conditioner heater combo is a great way to supplement your existing heating system. The heat function is only intended to provide supplemental heating, so it’s perfect for those cold days when you need a little extra warmth.
Emerson Quiet Kool 12,000 BTU 230V Through-The-Wall Air Conditioner with Remote Control | 4-in-1 AC, Heater, Dehumidifer, Fan | for Rooms up to 550 Sq.Ft. | 24H Timer | EATE12RD2T, 12000, White

Key Features:
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If you’re looking for a wall mounted air conditioner heater combo unit that comes with an industry-leading 1-2-5 warranty, then the Emerson Quiet Kool Wi-fi enabled air conditioner is the perfect choice for you. With this warranty, you’ll be covered for 1 year of labor, 2 years of parts, and 5 years on the compressor, so you can purchase and use this air conditioner with confidence.
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This wall mounted air conditioner heater combo is a great option for cooling and heating a medium to large sized room. It is very quiet, making it perfect for family rooms and other places where you don’t want a lot of noise. It is also very efficient, using very little energy to cool and heat a large space.
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This wall mounted air conditioner heater combo is for a shopper who requires a 230 volt/20 amp outlet, and is unable to be plugged into a standard 115V electrical outlet.
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The wall mounted air conditioner heater combo has two air exhaust vents and three fan speeds to give you 8-way flexibility to direct the flow of air where you want it when you want it.
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The wall mounted air conditioner heater combo has a built-in timer that can be set for up to 24 hours, as well as a sleep mode that slowly adjusts the temperature and fan speed to save energy and money.
Whirlpool 12,000 BTU 230V Through-the-Wall Air Conditioner and Heater with Remote Control | Cools/Heats Rooms up to 550 Sq.Ft | Digital Display | 24H Timer | WHAT121-HAW

Key Features:
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The wall mounted air conditioner heater combo is a powerful through the wall air conditioner that provides 12,000 BTUs of cooling power and 10,600 BTUs of heating power, and is best for spaces up to 550 sq. ft (not suitable for window installation). The wall mounted air conditioner heater combo has an attached, 4.8ft plug that will fit any 230V/20A electrical outlet, but will not operate in a standard 115V household electric outlet.
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This wall mounted air conditioner heater combo is very versatile and can be customized to fit your specific needs. It has 8-way directional louvers, 3 cooling fan speeds, 3 heating speeds, 4 operation modes, and a temperature setting range of 62-86 degrees. The on-board electronic controls are supplemented by a convenient remote control, and an integrated, programmable 24-hour timer completes the customization options.
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The Whirlpool Through the Wall air conditioner heater combo is a universal fit size that will fit into most existing sleeves. With dimensions of 20.3” D x 24.2” W x 14.5” H, the Whirlpool Through the Wall fits into sleeves 24.5”-27” wide and comes with a trim kit and rear grille to finish off the look.
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This wall mounted air conditioner heater combo is perfect for anyone who wants to conserve energy and save money. The Eco Function and Sleep Function are perfect for those who want to save money on their electric bill by conserving energy. The Eco Mode turns off the compressor when your desired room temperature is reached, and the Sleep Mode adjusts the temperature and fan speed to make you more comfortable, using less energy without disturbing your sleep.
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This wall-mounted air conditioner heater combo features a quick-access filter for easy cleaning. Just pull the front handle on the unit, wipe the filter clean, and push back into the unit.
Keystone 15,000 BTU Window Mounted Air Conditioner | Energy Star | Follow Me Remote Control | Energy Saver Mode | Sleep Mode | Timer | Auto-Restart | AC for Rooms up to 700 Sq. Ft | KSTAW15CE

Key Features:
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The 15,000 BTU air conditioner for window-mounted installation is a quick and efficient way to cool your apartment, bedroom, living room, or any other environment.
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The wall mounted air conditioner heater combo is a great way to keep a room cool and comfortable. It can be used to cool a room up to 700 sq. ft. and can also be used to dehumidify a room up to 3.2 pints per hour.
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This is a wall mounted air conditioner heater combo that has a 6.5-ft. LCD and a temperature sensing “follow me” remote control. The remote control has a thermostat built into it, so it can signal the AC to cool the space based on where you are in the room. It uses a standard 115V electrical outlet.
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This wall mounted air conditioner heater combo is energy efficient, saving you money on your electric bill. It is also rated by Energy Star, meaning it meets strict energy efficiency guidelines.
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This is a wall-mounted air conditioner heater combo that uses a standard 115V electrical outlet and has a 6.5-ft. LCDI power cord with a NEMA 5-15P plug.
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

Key Features:
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The wall mounted air conditioner heater combo is an on-demand hot water system that provides continuous hot water. It is monitored for water temperature and flow rates to ensure efficiency and consistent performance.
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This is a wall-mounted air conditioner heater combo that is 90% smaller than traditional tank heaters. It can be installed on the wall or at the point of use. The dimensions are 11.5 x 8 x 3.75 inches.
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This wall-mounted air conditioner heater combo is an energy-saving and eco-friendly option for a shopper. It is 99% thermal energy efficient and only heats water when called, unlike a tank heater that maintains water temperature even when not being used.
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This wall mounted air conditioner heater combo is an EcoSmart ECO 11. It is a 13-kilowatt tankless electric water heater that is ideal for providing hot water for a bathroom, small sink, office breakroom, and other point-of-use or low-flow applications. It provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.
Keystone 8,000 BTU 115V Through-The-Wall Air Conditioner | 4,200 BTU Supplemental Heating | LCD Remote Control | Sleep Mode | 24H Timer | AC for Rooms up to 350 Sq. Ft. | KSTAT08-1HC

Key Features:
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This wall mounted air conditioner heater combo is great for cooling and heating rooms up to 350 sq. ft. It has a 9.6 energy efficiency ratio (EER) and can dehumidify up to 2.1 pints per hour. The integrated electric heater provides supplemental heating of 4,200 BTUs.
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The wall mounted air conditioner heater combo is a temperature sensing, remote controlled unit that is designed to evenly heat or cool a room based on the location of the remote control.
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The wall mounted air conditioner heater combo has a front-access filter that can be easily vacuumed or rinsed and dried. There is no disassembly required.
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This wall mounted air conditioner heater combo is designed to fit in an existing 24.5” to 27” sleeve. It comes with foam seals and an installation kit to retrofit your existing sleeve. If you don’t have a sleeve, the matching Keystone KSTSLV1 is also available for purchase (sold separately).
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This wall mounted air conditioner heater combo is an energy-conscious option for shoppers. The unit has three cooling modes, a heating mode, and three fan speeds that are pre-programmed. The unit also has an Auto option that will automatically ramp up and down the fan speed to keep the pre-set temperature constant. The Energy-saver mode conserves energy and saves money by turning off the compressor once the desired temperature is reached.
BLACK+DECKER Air Conditioner, 12,000 BTU Air Conditioner Portable for Room and Heater up to 550 Sq. Ft, 4-in-1 AC Unit, Dehumidifier, Heater, & Fan, Portable AC with Installation Kit & Remote Control

Key Features:
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This wall mounted air conditioner heater combo is perfect for a room that is approximately 150 – 250 square feet or 10 x 20 foot room. It is also great for a room that is approximately 200 – 325 square feet or 15 x 22 foot room. This combo works in double hung or sliding windows only, no crank windows.
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This air conditioner heater combo is designed for vertical motion to create a steady and powerful airflow that provides consistent temperature in any room in the house. It comes with a slide out filter that rinses easily under a faucet for a fresh air feel, and 4 caster wheels are included for easy movement and compact portability.
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This wall mounted air conditioner heater combo is a great choice for anyone looking for a simple, yet precise, control over their air conditioning and heating. The LED digital display and 24 hour on/off timer make it easy to keep track of your settings, while the sleep mode ensures that you won’t be disturbed by the noise of the AC unit.
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This wall mounted air conditioner heater combo is a bucket less designed cooling unit that combines cooling, fan, dehumidification and heater modes with a simple quiet and noiseless operation. It is made with environmentally friendly R410a refrigerant.
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This wall mounted air conditioner heater combo includes an exhaust hose (4 feet 11 inches), a window kit, and a remote control. It is important to note that according to the 2017 DOE testing standard, this unit carries a 6000 BTU cool but according to the ashrae 128 this ac is a 12000 BTU cool.
LG LW1216HR 11,500/12,000 230V Window-Mounted Air Conditioner with 9,200/11,200 BTU Supplemental Heat Function, 12000, White

Key Features:
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This wall mounted air conditioner heater combo has an EER of 11.3, meaning it is quite efficient in terms of energy use.
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This wall-mounted air conditioner heater combo requires a special 230V electrical outlet, and will not work with a standard 115V outlet.
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The wall mounted air conditioner heater combo is a 12,000 BTU unit that is designed for cooling rooms up to 550 square feet. This unit features a remote control for easy operation, as well as a digital display that shows the temperature set point and the current room temperature. This unit also has a self-diagnostic function that can help to troubleshoot any issues that may arise.
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If you are looking for an air conditioner heater combo that can heat up to 11,200 BTUs, this is a great option for you. This particular model is also great for smaller spaces, as it can heat up an area of approximately 450 square feet.
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The wall mounted air conditioner heater combo has two cooling speeds, two heating speeds, and two fan speeds.
Cooper & Hunter 9,000 BTU, 115V, 20.5 SEER Ductless Mini Split AC/Heating System MIA Series Pre-Charged Inverter Heat Pump with 16ft Installation Kit

Key Features:
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The Cooper&Hunter Mia Series 9,000 BTU, 110V, 20.5 SEER, 10 HSPF4, Ductless Mini Split Air Conditioner Heat Pump ETL Intertek Approved, AHRI Certified WiFi Ready (Additional USB adapter is required but NOT included) is a wall mounted air conditioner heater combo that is ETL Intertek Approved and AHRI Certified. It is also WiFi ready, but requires an additional USB adapter, which is not included.
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This wall mounted air conditioner heater combo is pre-charged with refrigerant and works for heating with ambient temperature up to 5F°.
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This wall mounted air conditioner heater combo comes with 16FT copper line set, communication wires, and a drainage extension. Professional installation is required.
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The wall mounted air conditioner heater combo is a great choice for shoppers who are looking for a quiet and efficient way to heat and cool their home. This unit features whisper technology for quiet operation, making it ideal for bedrooms, additions, living rooms, and commercial applications.
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The wall mounted air conditioner heater combo is a great choice for a shopper who wants a reliable and durable air conditioner. The 7 year warranty on the compressor and 5 year parts warranty are great protection for the shopper. Professional installation is required for this system.
KEYSTONE 12,000/11,600 Capability 12,000 230V Window Wall Air Conditioner | 11,000 BTU Supplemental Heating | Sleep Mode | 24H Timer | Auto-Restart | AC for Rooms up to 550 Sq. Ft | KSTHW12A, White

Key Features:
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The wall mounted air conditioner heater combo is a 12,000 BTU cooling capacity / 11,000 BTU supplemental heating capacity unit that can effectively cool or heat your apartment, bedroom, living room, or home to the temperature that is right for you.
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The wall mounted air conditioner heater combo is a powerful heating option that can provide an additional heat source to your main heat source when outdoor temperatures are above 45°F. It has 3 cooling speeds, 3 fan speeds, and 1 heat speed for multi-seasonal use.
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This wall mounted air conditioner heater combo is designed for a room up to 550 sq. ft. and can dehumidify up to 2.5 pints per hour. The 4-way air flow direction can be adjusted to control the direction of the cool air.
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This wall mounted air conditioner heater combo is easy to install, with a removable chassis for easy window and wall installation.
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A wall mounted air conditioner heater combo that requires a special 230-volt/25-amp electrical outlet. The unit will not work with a standard 115V outlet.
Wall Mounted Air Conditioner Heater Combo FAQs
1. What are the benefits of a wall mounted air conditioner heater combo?
There are many benefits to a wall mounted air conditioner heater combo. Some of the benefits include:1. The combo unit is very efficient and can save you money on your energy bills.2. The combo unit is very versatile and can be used to heat or cool your home depending on the season.3. The combo unit is very easy to install and does not require any special tools or skills.4. The combo unit is very low maintenance and does not require any regular servicing.
2. How does a wall mounted air conditioner heater combo work?
The wall mounted air conditioner heater combo works by using the refrigerant in the AC unit to cool and heat the air in the room. The refrigerant is compressed and then circulated through the coils in the AC unit. This cools the air in the room and the heat is then sent through the coils in the heater unit. The heat is then sent back into the room to heat it up.
3. What are the features of a wall mounted air conditioner heater combo?
Some features of a wall mounted air conditioner heater combo are that it can provide both heating and cooling, it can be controlled remotely, and it is usually more energy efficient than other types of air conditioners.
4. How do I choose a wall mounted air conditioner heater combo?
There is no definitive answer, as there are a variety of factors to consider when choosing a wall mounted air conditioner heater combo. Some important considerations include the size of the unit, the type of heating and cooling desired, the climate in which the unit will be used, and the budget. Additionally, it is important to consult with a professional to ensure that the unit is properly installed and that it meets all local building code requirements.
5. How do I install a wall mounted air conditioner heater combo?
You will need to purchase a wall mounted air conditioner heater combo unit and an installation kit. The installation kit will include an air conditioner bracket, a heating element, and instructions. Follow the instructions included with the installation kit to properly install your new air conditioner heater combo unit.
Conclusion
There are many great wall mounted air conditioner heater combo on the market. Our list of the best wall mounted air conditioner heater combo will help you save time researching and choosing the best one for you.