Through Wall Heater Air Conditioners of 2025
Best Choice1
KeystoneKeystone 23,200 BTU Window-Wall Air Conditioner with 16,000 BTU Supplemental Heat and Dehumidifier, 230V, Window AC for Large Rooms up to 1,500 Sq.Ft. with Smart Remote Control
8.0 Remote Control8.0 Efficient Energy Use8.0 Easy installation9.7Exceptional
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Value for Money2
WhirlpoolWhirlpool WHAT122-HAW 12,000 230V Air Conditioner with Supplemental Heat, Dehumidifier and Remote, Wall AC Unit for Apartment, Living Medium Rooms up to 550 Square Feet, 12000 BTU, Bright White
Main highlights- Universal Fit Size: With dimensions of 20.3” D x 24.2” W x 14.5” H, this air conditioner fits into sleeves 24.5”-27” wide and comes with a trim kit and rear grille to finish off the look
- Exceptional Cooling: This powerful, 12,000/11,600 BTU through the wall air conditioner with 10600/8600 BTU supplemental heat (not meant to be used as a primary heat source in the coldest months) is best for spaces up to 550-sq. ft. with an attached, 4.9-ft plug that will fit any 230V/20A electrical outlet
- Easy Remove Filter: The unit features a quick-access filter for easy cleaning so you can simply pull it out, wipe the filter clean, and push back into the unit
- Cooling Flexibility: With 8-way directional louvers, 3 fan speeds, and 4 operation modes you can customize your cooling to fit your specific needs
- Convenient Functions: The Eco and Sleep functions save you money throughout the day and night while keeping you cool while the programmable 24-hour timer allows you to cool on your schedule
9.5Excellent
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3
TCLTCL H8T91H Heat 8,000 Smart Through-The-Wall Air Conditioner, Heater, Fan & Dehumidifier, 350 Sq. Ft, Remote Control, Compatible with Alexa/Google Assistant, 8000 BTU, White
Main highlights- Works with Smart Home Devices: This wall ac works with smart home devices like Amazon Alexa and Google Assistant so you can control it with simple voice commands; change and adjust your unit’s settings without needing to get up
- Set The Perfect Temperature: This wall ac unit is equipped with a 8,000 BTU cooling capacity and a 4,200 BTU heater that lets you maintain ideal temperatures in rooms up to 350 sq ft; cool off or warm up your space and stay comfortable all year long
- Compatible Sleeve Dimensions: This wall unit fits wall sleeves sized 26”x20”x15.57”; Wall Sleeve Not Included
- Built-in Dehumidifier: Set the wall unit to Dry Mode to pull moisture from the air and improve your space’s air quality; control and reduce humidity to make your space more comfortable and help prevent odors
- Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environmental factors such as number of occupants, home insulation, etc
9.4Excellent
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4
LG21% OffLG 9,800 BTU Through the Wall Air Conditioner with Supplemental Heat, 230V, AC Wall Unit for Rooms up to 440 Sq.Ft. (18' x 25' Room Size), Perfect for Bedroom, AC with Remote and Auto-Restart, White
Why we love it
Versatile heating and cooling options.
User-friendly digital controls.
Ideal for medium-sized rooms.
9.3Excellent
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5
KeystoneKeystone 8,000 BTU Wall Mounted Air Conditioner with Supplemental Heat and Dehumidifier Function, 115V, Wall AC for Small-Medium Sized Rooms up to 350 Sq.Ft. with Remote, Quiet, High Efficiency AC
8.2 worth the money8.0 Easy installation8.0 Efficient Energy UseWhy we love it
Efficient cooling and heating.
Space-saving wall-mounted design.
Remote offers precise temperature control.
9.1Excellent
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6
ROVSUN10% OffROVSUN Smart 8000 BTU Through the Wall Air Conditioner with Heat, Wall AC Unit & Heater Combo with Remote, APP & Voice Control & Timer Function, Compatible with Alexa/Google Assistant, 115V/60Hz
Why we love it
Fast cooling and heating capabilities.
Smart home integration with voice control.
Energy-efficient with ECO mode.
8.8Very Good
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7
OLMOOLMO 8,000 BTU 115V Through-the-Wall Air Conditioner & Heat System – Heating & Cooling – Includes Wall Sleeve, Remote Control & Built-In Wireless Smart Kit – R-32 Refrigerant
Why we love it
Efficient cooling and heating capabilities.
Includes remote and WiFi control options.
Easy installation with wall sleeve included.
8.7Very Good
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8
TCLTCL H10T9XH 10,000 BTU Smart Through-The-Wall Air Conditioner, AC Heater Unit with Fan & Dehumidifier, 450 Sq. Ft, Remote Control, Compatible with Alexa/Google Assistant, White
Main highlights- Works with Smart Home Devices: This wall ac works with smart home devices like Amazon Alexa and Google Assistant so you can control it with simple voice commands; change and adjust your unit’s settings without needing to get up
- Set The Perfect Temperature: This wall ac unit is equipped with a 10,000 BTU cooling capacity and a 8,600 BTU heater that lets you maintain ideal temperatures in rooms up to 450 sq ft; cool off or warm up your space and stay comfortable all year long
- Compatible Sleeve Dimensions: This wall unit fits wall sleeves sized 26”x20”x15.57”; Wall Sleeve Not Included
- Built-in Dehumidifier: Set the wall unit to Dry Mode to pull moisture from the air and improve your space’s air quality; control and reduce humidity to make your space more comfortable and help prevent odors
- Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environmental factors such as number of occupants, home insulation, etc
8.4Good
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9
KeystoneKeystone 12,000 BTU Wall Air Conditioner with Dehumidifier and Supplemental Heat, 230V, Quiet Wall AC for Small and Medium Sized Rooms up to 550 Sq.Ft. with Remote Control, White
9.1 Efficient Energy Use8.7 Remote Control8.4 Easy installationWhy we love it
Superior cooling/heating: 9.5 EER.
230V/20A outlet required.
Remote w/thermostat: even temps.
8.1Good
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10
ROVSUNROVSUN 10000 BTU Through the Wall Air Conditioner with Remote Control, 4-in-1 Wall AC Unit, Heater, Dehumidifier & Fan with Timer for Bedroom, Apartment, Dorm up to 450 Square Feet, 230V/60Hz
Main highlights- Versatile Operation Options: Features 4 versatile modes (Cool/Heat/Fan/Dry) with 3 adjustable fan speeds and a 24-hour timer, ensuring optimal comfort in both summer and winter months
- Quick DIY Installation: Pre-installation-ready with a detailed manual, trim kit, and rear grille. Modular components fit standard 25.5" wall sleeves (sleeve not included), enabling setup in under 30 minutes
- Efficient Comfort: This 230V through-the-wall unit provides both powerful cooling and heating, delivering complete climate control for spaces up to 450 sq.ft., making it ideal for bedrooms, offices, or studio apartments
- Easy-Clean Design: Removable front-panel filter requires no tools for quick washing, promoting air freshness and extending unit durability. Simplified maintenance keeps performance optimal
- Dual Control Convenience: Easily operate your unit through either the intuitive LED control panel or the included remote control, offering flexible operation from across the room
8.0Good
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