The 10 Best Wall Mounted Air Conditioner Heater Combo in 2024 - Features, Reviews and FAQs

SUPERIOR COOLING AND HEATING: With a 9.5 energy efficiency ratio (EER), this 12,000 BTU through the wall air conditioner can effectively cool rooms up to 550 sq. ft and dehumidify up to 2.5 pints per hour. (Product is not suitable for window installation). Integrated electric heater provides supplemental heating of 10,600 BTUs.

230-VOLT/20-AMP ELECTRICAL OUTLET REQUIRED: This air conditioner has a 6.5ft power cord with a NEMA 6-20P grounding plug that will not fit a standard 115V electrical outlet.

TEMPERATURE SENSING “FOLLOW ME” REMOTE CONTROL: With a thermostat built into the remote control, say good-bye to uneven room temperatures. The remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.

FRONT-ACCESS FILTER: Let’s face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place. No hassle and no disassembly required.

GUARANTEED FIT: This air conditioner will fit in your existing 24.5” to 27” sleeve. We guarantee it. At 20.3” D x 24.2” W x 14.5” H, we provide the foam seals and installation kit necessary to retrofit your existing sleeve. If you don’t have a sleeve, the matching Keystone KSTSLV1 is also available for purchase (sold separately).

Cooper&Hunter Mia Series 9,000 BTU, 110V, 19 SEER, 10 HSPF, Ductless Mini Split Air Conditioner Heat Pump ETL Intertek Approved, AHRI Certified WiFi Ready (Additional USB adapter is required but NOT included)

Pre-Charged with refrigerant. Works for heating with ambient temperature up to 5F°

Ready for installation: 16FT copper line set, communication wires, and a drainage extension are included with your order!

Whisper Technology for Quiet Operation, Great for Bedrooms, Additions,Living Rooms and Commercial Applications.

You are well protected by a 7 year warranty on the compressor, a 5 year parts warranty and smart, experienced technicians should you ever need assistance. This is not DIY system, professional installation is required.

12,000 BTU 1100W/5.0A cooling; 11,000 BTU 3500W/16.0A heating functionality

450- 550 sq. ft. coverage area; Remote control included; 4 operation modes; Installation hardware and weather seals included; 4-way air directional louvers

Please note: Special 230V electrical outlet required (unit will not work with a standard 115V outlet)

For a cool only version of this unit see model # WAC12002WCO; energy saver mode; EER 10.9;

Window Width: 26 7/8" to 36"; Window Minimum Height: 16"; Input voltage: 208/230 V/60 Hz; PLEASE NOTE: This window air conditioner does not require a wall sleeve

Your purchase includes One LG 10,000 BTU Air Conditioner with 11,200BTU suplemental Heater, in White | Through-the-Wall Remote Control & Installation Kit included

Air conditioner dimensions – 24” W x 14.41” H x 20.09” D | Weight – 78 lbs. | Indoor Noise Max rating – 56 dB | Voltage – 230V 60Hz

Cooling Performance – 9,800/10,000 BTU | Heating Performance – 9,200/11,200 | Dehumidification: 3.2 pts/hr. | Estimated cooling area – 450 Sq. Ft. | Estimated heating area – 450/550 Sq. Ft. | Refrigerant – R410A | CEER – 9.7/9.7

The cool and the heat mode is available for year-round use, keeping you cool during hot summers and warm during cold winters

Operate with LED display and simple selection control panel, up/down temperature adjustments, and fan speed selection, using the full-featured remote without leaving your bed, workspace, or couch

Cooper&Hunter 12,000 BTU Packaged Terminal Unit Heat Pump with Cooling (Dehumidifier) + 3.6 KW Electric Heater Perfect for residential/commercial/hotel use

Pre-Charged with R-410A Refrigerant Type, 6.5' Power Cord Included

Remote controller, grille and installation sleeve are not included and sold separately.

Standard Sizing - 42 Width x 21 Deep x 16 Height allowing you to replace your old PTAC while using existing standard wall sleeve and grille

7 year limited warranty on compressor, 5 year limited warranty on parts

Cooper&Hunter 14,700/14,500 BTU/h Packaged Terminal Unit Heat Pump with Cooling (Dehumidifier) + 13,500/13,200 Heat Pump Heating Capacity – 10,900/8,900 BTU/h Electric Heater Capacity – Perfect for residential/commercial/hotel use

Pre-Charged with R-410A Refrigerant Type, 6.5' Power Cord Included

Wall sleeve and grille are required for the new installation but not included and sold separately.

Standard Sizing - 42” Width x 21” Deep x 16” Height allowing you to replace your old PTAC while using existing standard wall sleeve and grille

7 year limited warranty on compressor, 5 year limited warranty on parts

8,000 BTU cooling - 890 W/7.8A; 4,200 BTU heating - 1320W/12.0A Dimensions: 14.5" H x 24.2" W x 20.3" D

300-350 sq. ft. coverage area; Remote control included; 2 year warranty

4-way air directional louvers; Three (3) fan speeds; Four (4) operation modes

Compatible with the Koldfront wall air conditioner sleeve (WTCSLV) sold separately; to purchase with the sleeve see model WTC8001WKIT

Note: Heat function is only intended to provide supplemental heating in addition to an existing heat source.

14,000 BTU cooling; 10,600 BTU heating; 700 square feet coverage area; CEER: 9.3

PLEASE NOTE: This is a 230V unit and requires a 230V outlet; Plug type Nema 6-20P

Temperature Range: 62° F - 86° F; Sleep mode; 24 hour timer; Energy saver feature; Control panel with digital display; Remote control included; Dehumidifier function; Power cord length 6 1/2 ft

Wall sleeve included; For this unit without the wall sleeve see model WTC14001W

Dimensions: 20-3/8" D x 14-1/2" H x 24-1/4" W; Weight: 79 lbs

❄️【Energy Efficient Cooling & Heating:】Equipped with a high power compressor and 1 ton heat pump, this split AC unit allows you to enjoy the convenience of cooling in summer and warming in winter. Besides, with an innovative inverter technology, the air conditioner changes the power supply frequency without frequently turning the compressor on and off, so as to reduce power consumption and prolong the service life of the equipment.

❄️【5 Modes for All-Year Comfort:】This 12000 BTU split-system AC unit has 5 working modes for you to choose from: auto, cool, dry, heat and fan mode. In addition, this split air conditioner also comes with 4 available fan speeds (low/medium/high/auto), sleep mode, ECO mode, iFEEL & turbo function to meet various needs.

❄️【Easy Control & Quiet Operation:】The handy remote control enables you to control this mini split AC unit from your comfortable bed or sofa conveniently. The smart 0.5-24 hour timer and low-noise operation ensure a peaceful sleep time. What's more, the display screen on the remote control will be turned off automatically when there is no operation within 10s, which will not disturb your sleep.

❄️【Self Cleaning & Auto Defrost:】Designed with a self-cleaning function at high temperature of 134.6℉and a washable filter, this split air conditioner can automatically clean its interior and keep the air in your home fresh and clean. Moreover, the outdoor unit features an auto-defrost function to avoid damage and improve energy efficiency.

❄️ 【Wide Application & Separate Delivery:】This powerful and energy-saving split air conditioner is perfect for home, office, business or commercial use. Due to the large size, the AC unit will be shipped in 2 separate boxes and the delivery time may vary per box. If you just receive one package or you have any problems with the product, please contact us at any time.

❄️【8 Year Warranty:】COSTWAY's superior quality and design are backed by an industry-leading manufacturer's warranty. This warranty covers 8 years of parts replacement and 8 years of compressor coverage, ensuring customers can rely on our products for years to come. In addition to this, the installation of this equipment should be done only by a Licensed HVAC Installer.

Supplemental Heat - For cooler days use the supplemental heat option to add warmth to your space

Multiple Fan Speeds - 2 cooling, heating and fan speeds allow you to customize your cooling or heating.

Maximum Usability - Easy to use electronic controls and remote

Auto Restart - After a power failure, Auto Restart will automatically turn the unit back on when power is restored

Cools Rooms Up to 550 Sq. Ft.- LT1237HNR is ideal for cooling medium rooms (25' X 22')