6 Best Smart Through-the-Wall Air Conditioners of 2026
We compared six smart cooling-only wall air conditioners on app and voice control, cooling capacity, room size, noise and sleeve fit.
By Daniel Brooks
Updated October 19, 2026
Most through-the-wall air conditioners still rely on a front panel and a basic remote. A smart wall unit adds Wi-Fi, so you can start cooling from your phone on the way home, set weekday schedules, and adjust the temperature with Alexa or Google Assistant. Our list of the best smart through-the-wall air conditioners compares six cooling-only wall units with built-in app control, from compact bedroom units to 14,000 BTU models for open-plan rooms. To browse every model we cover, visit our Cooling-Only Through-the-Wall Air Conditioners page.
Every unit here has app control built in, with no plug-in module to buy. We compared these smart through-the-wall air conditioners on voice assistant support, cooling capacity, room size, noise, power needs and sleeve fit.
All Products Compared
| Product | Best For | Cooling Capacity | Room Size | Noise | Smart Control |
|---|---|---|---|---|---|
| TCL 10,000 BTU Smart Through-the-Wall Air Conditioner | Overall | 10,000 BTU | Up to 450 sq ft | 51 dB | TCL Home, Alexa, Google Assistant |
| OLMO 14,000 BTU 230V Through-the-Wall Air Conditioner | Large rooms | 14,000 / 13,600 BTU/h | Large rooms | 49.5 dB | Built-in smart kit, app, voice |
| TCL 12,000 BTU Smart Through-the-Wall Air Conditioner | Living rooms on 115V | 12,000 BTU | Up to 550 sq ft | 56 dB | TCL Home, Alexa, Google Assistant |
| TABU 12,000 BTU Smart Through-the-Wall Air Conditioner | Newcomer | 12,000 BTU | Up to 550 sq ft | 51 dB | App, Alexa, Google Assistant |
| TCL 14,000 BTU 230V Smart Through-the-Wall Air Conditioner | Quiet large rooms | 14,000 BTU | Up to 700 sq ft | 50 dB | TCL Home, Alexa, Google Assistant |
| OLMO 8,000 BTU Through-the-Wall Air Conditioner | Sleeve included | 8,300 BTU/h | Small rooms | 49.5 dB | Built-in smart kit |
| Award | Product | WikiCooling Score About WikiCooling ScoreThe WikiCooling Score is our own rating from 0 to 10, based on the criteria described on our How We Review page. It reflects research, not laboratory measurement, and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
| Best Value |
TCL 10,000 BTU Smart Through-the-Wall Air
|
7.2/10 | Buy |
OLMO 14,000 BTU 230V Through-the-Wall Air
|
Buy | ||
| Best Premium |
TCL 12,000 BTU Smart Through-the-Wall Air
|
7.6/10 | Buy |
| Best Overall |
TABU 12,000 BTU Smart Through-the-Wall Air
|
9.4/10 | Buy |
|
TCL 14,000 BTU 230V Smart Through-the-Wall Air
|
6.8/10 | Buy | |
| Best Budget |
OLMO 8,000 BTU Through-the-Wall Air Conditioner
|
9.2/10 | Buy |
TCL 10,000 BTU Smart Through-the-Wall Air
This through-the-wall air conditioner from TCL delivers 10,000 BTU of cooling for rooms up to 450 sq. ft., making it a solid choice for medium-sized living spaces. It includes smart home compatibility with Alexa and Google Assistant, plus a remote and app control for convenient temperature adjustments. The unit also features a dehumidifier mode and washable filter, though the sleeve must be purchased separately.
Pros
- Smart voice control with Alexa and Google Assistant
- Dehumidifier mode for humidity control
- Washable and reusable filter
- Multiple fan speeds and airflow directions
- Energy-saving Sleep and Eco modes
Cons
- Wall sleeve not included
- No inverter technology for variable speed
- Noise level of 51 dB may be noticeable
OLMO 14,000 BTU 230V Through-the-Wall Air
This through-the-wall air conditioner from OLMO delivers 14,000 BTU of cooling power for large rooms in residential or commercial spaces. Its built-in smart kit enables control via smartphone app, voice commands, or the included remote. The unit operates on 230V with R-32 refrigerant and includes features like sleep mode and a self-evaporating system.
Pros
- Powerful 14,000 BTU cooling
- Smart home compatible
- Self-evaporating system
- Multiple control options
Cons
- Wall sleeve sold separately
- No inverter compressor
- Requires 230V outlet
TCL 12,000 BTU Smart Through-the-Wall Air
Stay cool and in control with the powerful cooling capacity of the TCL 12,000 BTU Through-the-Wall Air Conditioner. This smart wall ac unit cools rooms up to 550 sq. ft., and with its included remote and the TCL Home mobile app, you can set the perfect temperature from the comfort of your couch. You can also pair it with Alexa or Google Assistant-enabled devices so you can use simple voice commands to adjust its settings without lifting a finger. This wall unit helps keep your energy bill low with Sleep and Eco modes that prioritize energy efficiency, and it includes several fan speeds (low, medium, high, and auto in cool mode) along with 4-way ventilation and multidirectional louvers to ensure even and consistent cooling across your space. Its washable and reusable filter helps protect the life of your AC while also reducing large airborne particles like dust and pet hair. The unit comes with guided instructions so you don’t have to be an expert technician to set up your through-the-wall AC. Once set up, the LED display makes controlling your wall AC simple. It’s time to enjoy your home the way it was meant to be. Sleeve not included. Compatible sleeve dimensions: 26”x20”x15.57.
TABU 12,000 BTU Smart Through-the-Wall Air
Designed for permanent wall installation, this 12,000 BTU unit cools rooms up to 550 sq. ft. with smart app and voice control. Its three operating modes and energy-saving features provide year-round comfort and efficiency. Ideal for homeowners seeking a permanent, connected cooling solution.
Pros
- 12,000 BTU for rooms up to 550 sq. ft.
- Smart app and voice control
- Three modes including dehumidifier
- Energy-saving features
- Quiet 51 dB operation
Cons
- No heat mode for winter use
- Requires cutting a wall opening for installation
- Only one cooling capacity option
TCL 14,000 BTU 230V Smart Through-the-Wall Air
Stay cool and in control with the powerful cooling capacity of the TCL 14,000 BTU Through-the-Wall Air Conditioner. This smart wall ac unit cools rooms up to 700 sq. ft., and with its included remote and the TCL Home mobile app, you can set the perfect temperature from the comfort of your couch. You can also pair it with Alexa or Google Assistant-enabled devices so you can use simple voice commands to adjust its settings without lifting a finger. This wall unit helps keep your energy bill low with Sleep and Eco modes that prioritize energy efficiency, and it includes several fan speeds (low, medium, high, and auto in cool mode) along with 4-way ventilation and multidirectional louvers to ensure even and consistent cooling across your space. Its washable and reusable filter helps protect the life of your AC while also reducing large airborne particles like dust and pet hair. The unit comes with guided instructions so you don’t have to be an expert technician to set up your through-the-wall AC. Once set up, the LED display makes controlling your wall AC simple. It’s time to enjoy your home the way it was meant to be. Sleeve not included. Compatible sleeve dimensions: 26”x20”x15.57.
OLMO 8,000 BTU Through-the-Wall Air Conditioner
Offering 8,000 BTU of cooling for medium-sized rooms, this through-the-wall unit includes a wall sleeve and supports smart control via app, remote, or voice. Its self-evaporating system reduces maintenance, and at 49.5 dB it runs quietly. Ideal for apartments, bedrooms, or offices needing a permanent cooling solution.
Pros
- Includes wall sleeve
- Smart app, remote, and voice control
- Self-evaporating system
- Quiet operation at 49.5 dB
- Multiple fan speeds
Cons
- Cooling only, no heat mode
- Non-inverter compressor
- Heavy at 80 pounds
Top 3 Smart Through-the-Wall Air Conditioners Reviewed
#1 TCL 10,000 BTU Smart Through-the-Wall Air Conditioner: Best Overall
Why We Picked It
The TCL H10T9E1-A is the most rounded smart wall unit for everyday rooms. It works with the TCL Home app, Amazon Alexa and Google Assistant, so you can switch it on, change modes, adjust the temperature and fan speed, and set schedules without touching the unit. TCL rates it for spaces up to 450 square feet, which covers bedrooms, home offices and small living rooms.
It runs on a standard 115 volt outlet with a 980 watt draw, and its listed 51 dB is low for a conventional wall unit, which makes it a good bedroom choice. Dry, Sleep and Eco modes, low, medium, high and auto fan speeds, 4-way ventilation, a washable filter and an LED display are included, plus a remote for anyone who prefers buttons. TCL lists a compatible sleeve of 26 by 20 by 15.75 inches, and the sleeve is not included.
Key Specifications
- Cooling Capacity: 10,000 BTU
- Room Size: Up to 450 sq ft
- Power: 115 volts, 980 watts
- Noise Level: 51 dB
- Smart Control: TCL Home app, Alexa, Google Assistant
- Weight: 65 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
Pair the unit with the app before sliding it into the sleeve, while the display and buttons are easy to reach.
Best For
This unit is best for bedrooms and offices up to 450 square feet where you want scheduling and voice control.
Check the current price and availability of the TCL 10,000 BTU Smart Through-the-Wall Air Conditioner on Amazon.
Read our full TCL 10,000 BTU Smart Through-the-Wall Air Conditioner review.
#2 OLMO 14,000 BTU 230V Through-the-Wall Air Conditioner: Best for Large Rooms
Why We Picked It
The OLMO OW-P14AC230WF brings smart control to the large-room class. OLMO lists 14,000 / 13,600 BTU/h of cooling, enough for a big living room, an open-plan apartment, a studio or an office, and its built-in smart kit supports smartphone and voice control alongside a push button panel with an LED display and a remote.
The standout figure is noise. OLMO lists 49.5 dB, unusually low for a 14,000 BTU wall unit, which makes this one of the few large units we would consider for a big bedroom. The remote adds Sleep mode, a timer and auto restart, and OLMO describes a self-evaporating system for condensate. It runs on 230V, single phase, 60Hz, uses R-32 refrigerant, and OLMO asks buyers to confirm their receptacle before ordering. The sleeve is sold separately.
Key Specifications
- Cooling Capacity: 14,000 / 13,600 BTU/h
- Power: 230V, 1 phase, 60Hz
- Noise Level: 49.5 dB
- Refrigerant: R-32
- Smart Control: Built-in smart kit, app and voice
- Weight: 80 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
OLMO does not list a square footage. Use the sizing chart below, which places 14,000 BTU in the 550 to 700 square foot band.
Best For
This unit is best for large rooms with a 230 volt outlet where smart control and low noise both matter.
Check the current price and availability of the OLMO 14,000 BTU 230V Through-the-Wall Air Conditioner on Amazon.
Read our full OLMO 14,000 BTU 230V Through-the-Wall Air Conditioner review.
#3 TCL 12,000 BTU Smart Through-the-Wall Air Conditioner: Best for Living Rooms on 115V
Why We Picked It
The TCL H12T9E1-A gives you more capacity than the 10,000 BTU model without needing a 230 volt outlet. TCL rates it for spaces up to 550 square feet, and it runs on a standard outlet at 1160 watts, which makes it a practical smart upgrade for medium living rooms, large bedrooms and studios.
It shares the TCL Home app, Alexa and Google Assistant support of the smaller model, plus Dry, Sleep and Eco modes, auto fan speed, 4-way ventilation and a washable filter. TCL lists 56 dB, higher than the 10,000 BTU unit, which is the trade-off for a larger compressor. It needs the same 26 by 20 by 15.75 inch sleeve, not included, and it has a 3.9 average from 24 ratings.
Key Specifications
- Cooling Capacity: 12,000 BTU
- Room Size: Up to 550 sq ft
- Power: 115 volts, 1160 watts
- Noise Level: 56 dB
- Smart Control: TCL Home app, Alexa, Google Assistant
- Weight: 69.4 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
If you run several TCL units, you can control them all from one TCL Home account, which is handy in a multi-room apartment.
Best For
This unit is best for living rooms and large bedrooms with a standard outlet and a 26 inch class sleeve.
Check the current price and availability of the TCL 12,000 BTU Smart Through-the-Wall Air Conditioner on Amazon.
Read our full TCL 12,000 BTU Smart Through-the-Wall Air Conditioner review.
Other Models Worth Considering
TABU 12,000 BTU Smart Through-the-Wall Air Conditioner. A newer 12,000 BTU smart unit for spaces up to 550 sq. ft. with app control, a remote, and Alexa and Google Assistant support. It has Cooling, Dry and Fan modes, sleep mode and timers, a listed 51 dB, and a 1140 watt draw on a standard outlet. It has only a couple of ratings so far, so its track record is still building.
TCL 14,000 BTU 230V Smart Through-the-Wall Air Conditioner (H14T9EX1-A). TCL’s large-room smart unit for spaces up to 700 sq ft, running on 230 volts at 1460 watts. TCL lists 50 dB, very low for this capacity, and it shares the TCL Home app, Alexa and Google Assistant support of the smaller models. It needs a 26 by 20 by 15.57 inch sleeve, sold separately.
OLMO 8,000 BTU Through-the-Wall Air Conditioner (OW-A08AC115WF). A compact 8,300 BTU/h smart unit with the wall sleeve included, so it is a complete kit for a new opening. OLMO lists 49.5 dB, and it runs on a standard outlet.
What to Expect from Smart Through-the-Wall Air Conditioners
A smart wall unit cools exactly like a regular one. The difference is control. Scheduling lets you cool a room only when you need it, which often saves more energy than a small difference in efficiency ratings, and voice control helps anyone who finds a high-mounted control panel awkward to reach. Expect to pair the unit with a home Wi-Fi network during setup, and keep the remote as a backup.
For other options, see our guides to 115V through-the-wall air conditioners and through-the-wall air conditioners for bedrooms. The product cards show the current price for each unit.
How to Choose a Smart Through-the-Wall Air Conditioner
Size the Unit to the Room
ENERGY STAR publishes this general guide for sizing a room air conditioner by floor area:
| Room Size (sq ft) | Cooling Capacity (BTU/hr) |
|---|---|
| 100 to 150 | 5,000 |
| 150 to 250 | 6,000 |
| 250 to 300 | 7,000 |
| 300 to 350 | 8,000 |
| 350 to 400 | 9,000 |
| 400 to 450 | 10,000 |
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
Reduce capacity by 10 percent for a heavily shaded room, increase it by 10 percent for a very sunny room, add 600 BTU for each regular occupant beyond two, and add 4,000 BTU if the unit cools a kitchen. Source: ENERGY STAR.
Check the Voice Assistant
The TCL and TABU units list both Alexa and Google Assistant. OLMO lists voice control through its built-in smart kit. Check that your assistant is supported before ordering.
Check Power and Sleeve
The TCL 10,000 and 12,000 BTU units, the TABU and the OLMO 8,000 BTU run on a standard outlet. The OLMO 14,000 BTU and TCL 14,000 BTU need 230 volts. TCL specifies a 26 inch class sleeve, and only the OLMO 8,000 BTU includes a sleeve in the box.
Noise
The OLMO units list 49.5 dB and the TCL 14,000 BTU lists 50 dB, the lowest figures in this guide.
How We Evaluate Smart Through-the-Wall Air Conditioners
We rank wall air conditioners on manufacturer specifications, listing details and aggregated buyer ratings. For this list we kept only cooling-only through-the-wall units with built-in app control. We weighed smart features, room coverage and buyer feedback first, giving more weight to ratings from larger numbers of buyers, then compared noise, power needs, sleeve fit and warranty.
Frequently Asked Questions
Do smart wall air conditioners work with Alexa?
The TCL and TABU units work with Alexa and Google Assistant. OLMO lists voice control through its smart kit.
Which smart wall unit cools the largest room?
The TCL 14,000 BTU 230V model is rated for spaces up to 700 sq ft.
Which smart wall unit is quietest?
The OLMO units list 49.5 dB.
Can I control a smart wall unit without Wi-Fi?
Yes. Every unit here also has a remote and controls on the unit.
Final Verdict
The TCL 10,000 BTU Smart Through-the-Wall Air Conditioner is the best smart through-the-wall air conditioner for most bedrooms and offices, with app and voice control, a 51 dB listed sound level and a standard plug. For large rooms on 230 volts, choose the OLMO 14,000 BTU 230V Through-the-Wall Air Conditioner. For a living room on a normal outlet, the TCL 12,000 BTU Smart Through-the-Wall Air Conditioner adds capacity with the same app.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.