6 Best 115V Through-the-Wall Air Conditioners with Heat of 2026
We compared six heat and cool wall units that plug into a standard 115V outlet on cooling, heating output, noise, sleeve fit and controls.
By Daniel Brooks
Updated October 19, 2026
Most heat and cool wall units need a 230 volt receptacle, which many older apartments and homes do not have at the sleeve. A 115V through-the-wall air conditioner with heat plugs into a standard household outlet instead, so you can add cooling and light electric heat without new wiring. Our list of the best 115V through-the-wall air conditioners with heat compares six of them on cooling, heating output, noise, sleeve fit and controls. To browse every model we cover, visit our Through-the-Wall Air Conditioners with Heat page.
Every unit here is an 8,000 BTU class wall chassis with a heater of about 4,200 BTU, the usual limit for a standard outlet. That makes them best for bedrooms, home offices, nurseries and small apartment rooms rather than large living areas.
All Products Compared
| Product | Best For | Cooling | Heating | Noise | Notable Feature |
|---|---|---|---|---|---|
| OLMO 8,000 BTU Through-the-Wall AC & Heater | Overall | 8,000 BTU/h | 4200 BTU/h | 52 dB | Built-in smart kit |
| ROVSUN Smart 8,000 BTU Through the Wall Air Conditioner with Heat | Most ratings | 8000 BTU | 4200 BTU | 61 dB | Five modes, Alexa and Google |
| TCL 8,000 BTU Smart Through-the-Wall Air Conditioner with Heater | Dehumidifying | 8,000 BTU | 4,200 BTU | 57 dB | Dry mode, TCL Home app |
| Whirlpool 8,000 BTU Wall Air Conditioner with Heat | Universal sleeve fit | 8,000 BTU | 4200 BTU | 57 dB | Fits 24.5 to 27 inch sleeves |
| Durastar 8,000 BTU Through the Wall Air Conditioner with Heat and Sleeve | Sleeve included | 8,000 BTU | 4,200 BTU | 56 dB | Wall sleeve in the bundle |
| Frigidaire 8,000 BTU Wall Air Conditioner with Heater | Familiar brand | 8,000 BTU | 4,200 BTU | 57 dB | 750 watts, 24 hour timer |
| 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 Overall |
OLMO 8,000 BTU Through-the-Wall AC & Heater
|
8.1/10 | Buy |
| Best Budget |
ROVSUN Smart 8,000 BTU Through the Wall Air
|
7.8/10 | Buy |
TCL 8,000 BTU Smart Through-the-Wall Air
|
Buy | ||
| Best Value |
Whirlpool 8,000 BTU Wall Air Conditioner with Heat
|
6.5/10 | Buy |
| Best Premium |
Durastar 8,000 BTU Through the Wall Air
|
6.8/10 | Buy |
Frigidaire 8,000 BTU Wall Air Conditioner
|
Buy |
OLMO 8,000 BTU Through-the-Wall AC & Heater
Product description The Olmo TTW Through the Wall Unit Olmo’s “Through The Wall” air conditioning unit is a versatile and efficient cooling solution designed to seamlessly integrate into your living space. This unit combines convenience, efficiency, and comfort, all in one sleek package. Some of its great features include a remote control that allows you to change settings, adjust temperature, and switch modes from the comfort of your couch or bed. Whether you’re upgrading your home or office, Olmo has you covered, making this unit an excellent choice for any room. Olmo takes convenience to the next level with “Smart Connect” letting you control the unit remotely using your smartphone. The exclusive remote controller features include Sleep Mode, Timer, Auto Restart and a Self evaporating system. Olmo’s TTW Sleeve is available to purchase separately for easy installation. From the brand OLMO offers a range of air conditioning and heating solutions, such as ducted and ductless mini splits, Multi-positional Air Handlers, and Through The Wall systems. Known for affordability and quality, OLMO integrates cutting-edge technology to deliver reliable, energy-efficient, and user-friendly products. Our commitment to innovation ensures high SEER2 ratings, minimal noise, and effective performance, making OLMO a smart choice for any space. Through-The-Wall A/C Single Zones Multi Zones
ROVSUN Smart 8,000 BTU Through the Wall Air
This through-the-wall unit from ROVSUN delivers 8,000 BTU of cooling and 4,200 BTU of heating for rooms up to 350 square feet. It includes WiFi and voice control, a remote, and multiple operating modes. A good fit for anyone needing a combined AC and heater in a standard wall sleeve.
Pros
- Heats and cools for year-round use
- Smart controls with app and voice
- Fits standard 25.5-inch wall sleeve
- Washable filter for easy maintenance
Cons
- No inverter compressor
- Heavy at 62.8 lbs
- Wall sleeve not included
TCL 8,000 BTU Smart Through-the-Wall Air
Take control over your home comfort. The TCL 8,000 BTU Smart Through-the-Wall Air Conditioner is equipped with a 4,200 BTU heater so you can set and maintain your ideal temperature in spaces up to 350 sq. ft. And with its included remote and the TCL Home mobile app, you can adjust its settings without having to get up from the comfort of your couch. You can also pair it with Alexa or Google Assistant-enabled devices to control it with simple voice commands. 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.
Whirlpool 8,000 BTU Wall Air Conditioner with Heat
This through-the-wall air conditioner from Whirlpool delivers 8,000 BTU of cooling for rooms up to 350 square feet, with 4,200 BTU of supplemental heat for early fall nights. It fits standard wall sleeves with a trim kit included, and features Eco and Sleep modes for energy savings. A remote control and programmable 24-hour timer add convenience for year-round comfort.
Pros
- Cools up to 350 sq. ft.
- Includes supplemental heat
- Universal fit with trim kit
- Remote control included
- Washable filter for easy cleaning
Cons
- No inverter compressor (rotary scroll)
- Heat function is supplemental only
- No Wi-Fi or smart controls
Durastar 8,000 BTU Through the Wall Air
This through-the-wall air conditioner from Durastar delivers 8,000 BTU of cooling for rooms up to 350 square feet. It includes a wall sleeve and offers supplemental heating with 4,200 BTU. The unit operates at 56 dB and comes with a remote control for convenient adjustments.
Pros
- Includes wall sleeve
- Remote control included
- Supplemental heating mode
- Quiet 56 dB operation
- 115V standard plug
Cons
- Sleeve may arrive damaged or missing parts
- Heating is supplemental only, not primary
- Heavy 96-pound unit
Frigidaire 8,000 BTU Wall Air Conditioner
Enjoy year-round comfort with this 3-in-1 In-Wall Air Conditioner featuring powerful cooling, supplemental heating, and fan-only operation in one streamlined system. Designed for through-the-wall installation, this unit delivers reliable climate control , keeping you cool in summer and cozy when temperatures drop. With multiple cooling levels and a built-in supplemental heater, this wall air conditioner transitions seamlessly between seasons. Quick Cooling and Warming functions help reach your desired temperature faster, while Energy Saver Mode optimizes performance by cycling the system to reduce unnecessary power usage. Three fan speeds provide customized airflow, and multi-directional air circulation ensures even distribution throughout the room. A washable, reusable filter captures dust and airborne particles, while Clean Filter alerts simplify maintenance. Designed for secure in-wall installation, this unit offers a clean, built-in appearance and dependable operation.
Top 3 115V Through-the-Wall Air Conditioners with Heat Reviewed
#1 OLMO 8,000 BTU Through-the-Wall AC & Heater: Best Overall
Why We Picked It
The OLMO OW-P08HS115WF combines the best average rating among 115 volt heat models we cover, 4.2 from 12 ratings, with the lowest price tag in this group and a full smart feature set. It delivers 8,000 BTU/h of cooling and 4200 BTU/h of heating on 115V, 1 phase, 60Hz power, so it plugs straight into the regular outlet many older sleeves already have.
The built-in smart kit lets you run it from the phone app or by voice, along with the push button panel with LED display and the included remote. OLMO lists 52 dB, the lowest figure in this guide, which makes it a strong bedroom choice. Sleep mode, a timer, auto restart and R-32 refrigerant complete the package.
Key Specifications
- Cooling Capacity: 8,000 BTU/h
- Heating Capacity: 4200 BTU/h
- Power: 115V, 60Hz
- Noise Level: 52 dB
- Controls: Panel, remote, app, voice
- Weight: 77 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
OLMO does not publish a room size for this model. At 8,000 BTU, the ENERGY STAR chart points to rooms of about 300 to 350 square feet.
Best For
This unit is best for bedrooms and home offices where you want quiet cooling, light heat and smart control on a standard outlet.
Check the current price and availability of the OLMO 8,000 BTU Through-the-Wall AC & Heater on Amazon.
Read our full OLMO 8,000 BTU Through-the-Wall AC & Heater review.
#2 ROVSUN Smart 8,000 BTU Through the Wall Air Conditioner with Heat: Best Proven Smart Unit
Why We Picked It
The ROVSUN Smart 8,000 BTU has the most feedback in this group, with a 4.0 average from 48 ratings that its listing shares with ROVSUN’s larger smart sizes. It pairs 8000 BTU of cooling with a 4200 BTU heater and is rated for up to 350 square feet, with 250 square feet recommended.
It has the most complete mode list here: Heat, Auto, Cool, Dry and Fan. Auto mode switches between heating and cooling to hold the set temperature, which is handy on spring days that start cold and end warm. Three fan speeds plus auto, a 24 hour timer, an ECO saver, a swing button for the louvers and app, Alexa and Google Assistant control round it out. It fits a standard 25.5 by 15.25 inch sleeve and includes a trim kit and back grille.
Key Specifications
- Cooling Capacity: 8000 BTU
- Heating Capacity: 4200 BTU
- Room Size: Up to 350 sq ft
- Power: 115V, 1027 watts
- Noise Level: 61 dB on high
- Weight: 62.8 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
ROVSUN lists 61, 59 and 57 dB on high, medium and low, so light sleepers should plan to run it on low at night.
Best For
This unit is best for renters and smart home users who want a well-equipped heat and cool unit for a small room.
Check the current price and availability of the ROVSUN Smart 8,000 BTU Through the Wall Air Conditioner with Heat on Amazon.
Read our full ROVSUN Smart 8,000 BTU Through the Wall Air Conditioner with Heat review.
#3 TCL 8,000 BTU Smart Through-the-Wall Air Conditioner with Heater: Best for Humid Rooms
Why We Picked It
The TCL H8T91H brings TCL’s polished app and a dedicated dry mode to the 115 volt class. It pairs 8,000 BTU of cooling with a 4,200 BTU heater for rooms up to 350 square feet and draws a rated 790 watts, one of the lowest figures here. It has 41 ratings on its listing.
The TCL Home app, Alexa and Google Assistant handle remote and voice control, and Sleep and Eco modes trim energy use. In cool mode, you get low, medium, high and auto fan speeds, plus 4-way ventilation and multidirectional louvers. Dry mode pulls moisture out of the air on muggy days without heavy cooling, which helps in basements, bathrooms nearby or coastal homes. TCL lists 57 dB.
Key Specifications
- Cooling Capacity: 8,000 BTU
- Heating Capacity: 4,200 BTU
- Room Size: Up to 350 sq ft
- Power: 115 volts, 790 watts
- Noise Level: 57 dB
- Weight: 64 pounds
| Pros | Cons |
|---|---|
|
|
Things to Consider
TCL lists a compatible sleeve of 26 by 20 by 15.57 inches. Measure your existing sleeve, because some brands use narrower ones.
Best For
This unit is best for small, humid rooms where you want dehumidifying, light heat and polished smart controls.
Check the current price and availability of the TCL 8,000 BTU Smart Through-the-Wall Air Conditioner with Heater on Amazon.
Read our full TCL 8,000 BTU Smart Through-the-Wall Air Conditioner with Heater review.
Other Models Worth Considering
Whirlpool 8,000 BTU Wall Air Conditioner with Heat (WHAT082-HAW). The easiest replacement unit in this group, because its chassis fits sleeves from 24.5 to 27 inches wide. It offers 4200 BTU of supplemental heat for spaces up to 350 square feet, 8-way louvers, 3 fan speeds, Eco and Sleep functions and a 24 hour timer. It lists 57 dB and has a 3.2 average from 13 ratings.
Durastar 8,000 BTU Through the Wall Air Conditioner with Heat and Sleeve (DRTHC081XNA1SLV). A bundle of the 8,000 BTU heat and cool unit and Durastar’s wall sleeve, so it suits a new wall opening. It has a 4,200 BTU supplemental heater, runs on 115 volts, and lists 56 dB. The two items ship separately, and the bundle weighs 96 pounds. It has only 3 ratings.
Frigidaire 8,000 BTU Wall Air Conditioner with Heater (FHTE083WA1). A simple 115 volt unit for spaces up to 350 square feet, with a 4,200 BTU supplemental heater, 3 fan speeds, sleep mode, a 24 hour timer and a washable filter. It draws a rated 750 watts, the lowest here, and lists 57 dB. It has no ratings yet.
What to Expect from 115V Through-the-Wall Air Conditioners with Heat
A standard outlet limits how much power a wall unit can draw, so 115 volt heat models pair small cooling sections with small heaters. Expect enough heat to take the chill off a bedroom on a cool morning or a fall evening, not enough to warm a large room through a cold spell. The big advantage is installation: these units can go into an existing sleeve with a regular outlet, with no electrician needed.
For bigger rooms, see our guides to 230V through-the-wall air conditioners with heat and through-the-wall air conditioners with heat. The product cards show the current price for each unit.
How to Choose a 115V Through-the-Wall Air Conditioner with Heat
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.
Be Realistic About the Heat
Every unit in this guide lists about 4,200 BTU of heat. That is the same class of output as a small portable space heater, delivered through the air conditioner’s fan and louvers. It works well for mild climates and shoulder seasons. If the room runs cold for months, a 230 volt model with a heater of 10,000 BTU or more is the better tool.
Match the Sleeve
Sleeve sizes vary between brands. Whirlpool fits 24.5 to 27 inch sleeves, ROVSUN fits a 25.5 inch sleeve, and TCL specifies 26 by 20 by 15.57 inches. Durastar bundles its own sleeve. Measure the inside of your existing sleeve before ordering.
Decide on Smart Control
The OLMO, ROVSUN and TCL units all offer app and voice control, which is useful for warming a bedroom before you go to bed or cooling it before you get home. The Whirlpool, Durastar and Frigidaire use a panel and remote only.
How We Evaluate 115V Through-the-Wall Air Conditioners with Heat
We rank heat and cool wall units on manufacturer specifications, listing details and aggregated buyer ratings. For this list we kept only through-the-wall chassis with a heat mode that run on a standard 115 volt outlet, and excluded cooling-only units, window units and 230 volt models. We weighed cooling, heating output and buyer feedback first, giving more weight to ratings from larger numbers of buyers, then compared noise, sleeve fit, smart features and warranty.
Frequently Asked Questions
Can a 115V wall unit really heat a room?
It can warm a small room on cool days. The units here list about 4,200 BTU of heat, which suits bedrooms and offices rather than large living areas.
Which one is the quietest?
The OLMO 8,000 BTU unit lists 52 dB, the lowest figure in this guide.
Which one includes a wall sleeve?
The Durastar 8,000 BTU bundle includes Durastar’s wall sleeve.
Which ones have Wi-Fi?
The OLMO, ROVSUN and TCL units offer app and voice control.
Final Verdict
The OLMO 8,000 BTU Through-the-Wall AC & Heater is the best 115V through-the-wall air conditioner with heat for most small rooms, with a low 52 dB listing, a built-in smart kit and the best average rating in this group. For the most feedback and an Auto heat and cool mode, choose the ROVSUN Smart 8,000 BTU Through the Wall Air Conditioner with Heat. For humid rooms, the TCL 8,000 BTU Smart Through-the-Wall Air Conditioner with Heater adds a dedicated dry mode.
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.