Best Window Air Conditioners with Heat in 2021

The Best Air Conditioners with Heat
Image by Canva Photos

The best window air conditioners with heat keep you cool in the summer and warm and toasty all winter long. Best of all, these best-rated units require minimal installation (if any). They are quiet and relatively affordable, especially when compared to updating the HVAC system of an entire house. Meaning they’re an excellent choice for condos and apartments. An additional bonus, these versatile little units will keep your workshop, attic, or basement comfortable in any season, and the portable ones can go where you go.

Are you sitting around with ice in your underwear in the summer, or wearing extra socks to bed in the winter? Do yourself a favor and upgrade to one of the best-rated window air conditioners with heat. You can thank us later.

Our Top Picks

Let these hot takes will warm you up:

Senville SENL-12CD_220_X Mini Split Air Conditioner Heat PumpBest Overall Air Conditioner with Heat: Senville SENL-12CD/220/X Mini
First in our ranking is the Senville SENL-12CD/220/X, a 4-in-1 mini split air conditioner with a heat pump, dehumidifier, fan, and turbo function.
Koldfront WAC25001W Window Air Conditioner with HeatBest Quiet Air Conditioner with Heat: Koldfront WAC25001W
Whether hot or cold, the Koldfront WAC250 keeps rooms up to 1,700 square feet comfortable without disturbing your neighbors or roommates.
LG Electronics LW1221HRSM with Wi-FiBest Smart Air Conditioner with Heat: LG Electronics LW1221HRSM with Wi-Fi
The best smart window air conditioner with heat in our ranking is the smart-home enabled LG LW1221, compatible with both Alexa and Google Assistant, among many other virtual assistant technologies.
LG Electronics 7,500 BTU Window Air Conditioner with HeatBest 7,500 BTU Air Conditioner with Heat: LG Electronics 7,500 BTU
For a 7,500 BTU unit, choose this LG air conditioner with heat, offering two fan speeds for cooling and heating and a 24-hour on/off timer.
LG LW1019IVSM 9,500 BTU Window Air Conditioner with HeatBest 9,500 BTU Air Conditioner with Heat: LG LW1019IVSM 9,500 BTU
Perfect for rooms up to 450 square feet, this LG model is the best 115V window air conditioner with heat in our ranking.
PerfectAire 12,000 BTU Air Conditioner with Electric HeaterBest 12,000 BTU Air Conditioner with Heat: PerfectAire 12,000 BTU
With a fully-functioning remote and Follow Me portable thermostat technology, this PerfectAire is the best 12,000 BTU air conditioner available.
PerfectAire 3PACH25000 Window Air Conditioner with HeatBest 25,000 BTU Air Conditioner with Heat: PerfectAire 3PACH25000
Choose the PerfectAire 3PACH, 25,000 BTU unit for large rooms up to about 1,500 square feet.
LG 7,500 BTU Window Air Conditioner with Supplemental HeatBest Small Air Conditioner with Heat: LG 7,500 BTU Window Air Conditioner
The best small-space window air conditioner with heat in our ranking is this quiet and compact LG model, offering 3,850 BTUs in rooms up to about 320 square feet.
Whynter Elite 12,000 BTU Digital Portable Air ConditionerBest Portable Air Conditioner with Heat: Whynter Elite 12,000 BTU Dual Hose
To warm-up or cool down wherever you call home, choose the Whynter Elite digital air conditioner offering space-saving design and casters.
 

A Closer Look: Best Window Air Conditioner with Heat

Cool down and stay awhile. Here’s a closer look at the 10 best air conditioners with heat:

1. Senville SENL-12CD/220/X Mini Split Air Conditioner Heat Pump

The best air conditioner with heat overall

Senville SENL-12CD_220_X Mini Split Air Conditioner Heat Pump

Brand: Senville | BTU: 16,000 Heat / 25,000 Cool | Power: Corded Electric | Control: Remote/Touch | Price: 💰💰💰💰

Offering quiet operation at only 26 db, the Senville SENL is the overall best air conditioner with heat in our ranking. Among the many things we like about the unit is the SEER 19 efficiency rating, or the ratio of the cooling output over the chilly season divided by the energy used, measured in watt-Hours. And when it comes to a SEER rating, the bigger the number, the better. 

Otherwise, Senville boasts not only cooling and heat, but a fan and dehumidifier. Included with purchase is a 15-foot installation kit with a communication cable, copper lines, and remote control with batteries. The Senville worked well in a space of about 500 square feet without jacking up the power bill, according to reports. However, It is best to have a professional install it.

  • Highly energy efficient
  • Good solution for multiple “zones”
  • Great for bedrooms and workshops
  • Don’t install it on your own
  • Pump overheats if left on too long
  • Connection lines too short for some windows

2. Koldfront WAC25001W Window Air Conditioner with Heat

The best quiet air conditioner with heat

Koldfront WAC25001W Window Air Conditioner with Heat

Brand: Koldfront | BTU: 16,000 Heat/ 25,000 Cool | Power: Corded Electric | Control: Remote/Touch | Price: 💰💰💰💰

For the quietest window air conditioner with heat, choose the Koldfront WAC25001W, a 16,000 BTU model. The unit does require a 30-Amp 230-volt breaker to operate, but otherwise, the Koldfront works well in rooms up to 1,500 square feet with supplemental heat for spaces of about 700 square feet. We like the remote and touch control, with three fan speeds, four modes of operation, and a 24-hour timer. There’s also a 4-way air directional louvers.

Otherwise, the Koldfront WAC25001W effectively heated and cooled the top floor of a house, measuring about 1,100 square feet. It’s a bit large, but those who’ve tried the AC unit say don’t be intimidated because it installs easily. We were especially pleased to hear reports of how well the unit worked in shops ranging from 1,000 to 1,200 square feet, one with ceilings as high as 20 feet. It’s also a good choice for a house as large as 1,500 square feet.

  • Quiet for its size
  • Effectively circulates air
  • Effective energy-saver feature
  • Too heavy for some
  • AC better than heat
  • May need to be braced outside the window

3. LG Electronics LW1221HRSM with Wi-Fi

The best smart air conditioner with heat

LG Electronics LW1221HRSM with Wi-Fi

Brand: LG | BTU: 11,200 Heat / 12,000 Cool | Power: Corded Electric | Control: Remote/Wi-fi/Touch | Price: 💰💰💰

The best smart window air conditioner in our ranking with heat is the LG LW1221HRSM. This remote control and Wi-Fi-operated unit has a digital control panel, but you can also control it using your voice or smartphone. Or instead, operate it through LG ThinQ technology, Amazon Alexa, or Hey Google, among many other AI assistants. 

Heating and cooling medium-sized rooms of about 450 square feet, the LW1221 also offers 4-way air deflection, two cooling and heating fan speeds, and 4-in-1 operation, including not just heating and cooling but also a fan and dehumidifier. The LG LW1221 was more than adequate when purchased to cool down an office of about 388 square feet. The heater/AC combo unit also worked well in a woodshop over the winter months, and it installed in minutes. 

The appliance was also used to heat and cool an entire floor of an old house. One drawback, however, is that the air deflector assembly does not direct the side-to-side airflow very effectively.

  • Works well in an enclosed porch
  • Quickly changes temperature settings
  • Light indicating when it’s time to clean the filter
  • Some fan durability issues
  • Some recommend a pro install
  • Kicks on and off too much in Energy Saver mode

4. LG Electronics 7,500 BTU Window Air Conditioner with Heat 

The best 7,500 BTU air conditioner with heat

LG Electronics 7,500 BTU Window Air Conditioner with Heat

Brand: LG | BTU: 3,850 Heat / 7,500 Cool | Power: Corded Electric | Control: Remote/Touch | Price: 💰💰💰

For a 7,500 BTU window air conditioner, choose the next LG model in our ranking. It’s a 4-in-1 model, with heat and cooling, a fan, and a dehumidifier, offering 4-way air deflection and two cooling and heating fan speeds for an estimated cooling area of about 320 square feet. This LG unit also has a removable and washable filter, with a light reminding you when it’s time to change it — pretty convenient! Installation is especially easy due to the slide-in/slide-out chassis. 

Users of the AC unit call it amazing, lightweight, and very quiet. It’s also pretty energy efficient, based on feedback. If you have an older LG model, upgrading to this LG unit is as simple as sliding out the old one and inserting the new one. One Florida resident even commented how this AC heat combo unit battled the local humidity. It’s also very quiet.

  • Nice and quiet
  • Circulates air nicely
  • Good choice for bedrooms
  • Some rattling reported
  • Serial and model number obscured once installed
  • Cools a bit better than it heats, according to some

5. LG LW1019IVSM 9,500 BTU Window Air Conditioner with Heat

The best 9,500 BTU air conditioner with heat

LG LW1019IVSM 9,500 BTU Window Air Conditioner with Heat

Brand: LG | BTU: 9,500 | Power: Corded Electric | Control: Wi-Fi/Touch/Remote | Price: 💰💰

Wi-Fi controlled, and Energy Star-rated, the LW10191VSM from LG is the best 9,500 BTU unit in our ranking. This 115-volt window air conditioner with heat is reasonably priced, pumping out 9.5000 BTU, suitable for rooms of about 450 square feet. We like the powerful but quiet DUAL inverter and auto-cool technology with four adjustable fan speeds. For remote operation, the model pairs well with LG ThinQ Technology, Alexa, and Google Assistant, but there’s also a user-friendly control panel and manual remote.

User feedback says this unit is “whisper quiet” and that it holds a consistent temperature. There’s also no vibrating our rattling, and with the LG “L” brackets included with purchase, it mounts easily to the outer sash of most window sills. The app is also straightforward to use. The energy-saving mode is quite effective, we learned, cooling a room before putting itself to sleep when it’s reached the desired temperature. It then reliably turns itself back on, maintaining that temp. Some lag in response time is reported when operating the unit via Wi-Fi, however.

  • Set up was a breeze
  • Great value for the price
  • Relentless flow of cold air
  • Still too noisy for some
  • Shipping issues reported
  • Will not work on a GFCI outlet

6. PerfectAire 12,000 BTU Air Conditioner with Electric Heater 

The best 12,000 BTU air conditioner with heat

PerfectAire 12,000 BTU Air Conditioner with Electric Heater

Brand: PerfectAire | BTU: 3,500 Heat / 12,000 Cool | Power: Corded Electric | Control: Remote / Touch | Price: 💰💰💰

PerfectAire earned the best-rated window air conditioner with heat in our ranking on the strength of features like Follow Me portable thermostat technology offering total room coverage. 3-in-1, the PerfectAirealso boasts three fan speeds as it cools and or with the fan only, but only one fan speed while heating. Otherwise, there’s a fully functioning remote and changing the front-mounted filter is made easy by the tilt-out access. Also notable, the included window-mounting kit accommodates vertical sliding, double-hung windows.

PerfectAir was more than adequate in the Texas heat, and though some assembly is required, the installation was easy. Additional feedback came from one consumer who chose PerfectAir for their tiny home with good results. If 12,000 BTUs isn’t enough, PerfectAir also offers this same model with 18,5000 and 25,000 BTUs. The heater is estimated to work in spaces of about 550 square feet, while the unit cools spaces of about 350 square feet. We especially like the built-in room temperature sensor in the remote with automatic temperature regulation.

  • Nice remote
  • Worked well in 90-degree temps
  • Cools 450 square foot room to mid-teens
  • Better AV than heat
  • Some shipping delays reported
  • Disagreement whether it’s 150V or 220V

7. PerfectAire 3PACH25000 Window Air Conditioner with Heat

The best 25,000 BTU air conditioner with heat

PerfectAire 3PACH25000 Window Air Conditioner with Heat

Brand: PerfectAire | BTU: 16,000 Heat / 25,000 Cool | Power: Corded Electric | Control: Remote / Touch | Price: 💰💰💰💰💰

For the most powerful window air conditioner with heat, choose the 25,000 BTU PerfectAire 3PACH. Perfect for large spaces up to 1,500 square feet, the 3PACH has three fan speeds when cooling or when just operating the fan, but only one fan speed for heat. Otherwise, the filter is also easy to access when it’s time to change it, and there’s a fully functioning and intuitively-designed remote with Follow Me technology. It automatically adjusts temps based on the ambient temperature of the room.

Those who’ve had good luck with the 3PACH call it easy to install and quiet, though it didn’t get the room quite as cold as they might have liked. The unit runs at 63, 61, and 58db depending on where it’s set to high, medium, or low. However, it is important to note, however, that 25,000 BTUs does require a 230V outlet and is overkill for most small spaces.

  • Handy remote
  • Works well in large spaces
  • Easy-to-use smart automation
  • Only cools down to 62 degrees
  • Electric heat only, no heat pump
  • Batteries not included with purchase

8. LG 7,500 BTU Window Air Conditioner with Supplemental Heat

The best small air conditioner with heat

LG 7,500 BTU Window Air Conditioner with Supplemental Heat

Brand: LG | BTU: 7,500 | Power: Corded Electric | Control: Remote | Price: 💰💰💰

Don’t overdo it if you only have a small space to heat or to cool down. For spaces of only 320 square feet or less, choose the LG 7,500 BTU window air conditioner with supplemental heat. It’s also very compact, perfect for apartments, condos, or workshops. The last thing you want in tight quarters is an AC unit blasting away in your ear, so it’s also notable that this LG unit is also very quiet.

One user had good luck with the unit in a small, mini-garage and art room, calling the sound level reasonable. According to another consumer, the unit is excellent for a small room, with very little noise. The filter is also effortless to remove and clean. It does only offer supplemental heat, however, so if you live in a particularly cold climate, you may want to reconsider.

  • Perfect size
  • Remote works great
  • Worked great in a sunroom addition
  • Better AC than heat
  • Eco-mode could be better
  • Best for relatively temperate climates

9. Whynter Elite 12,000 BTU Digital Portable Air Conditioner

The best portable air conditioner with heat

Whynter Elite 12,000 BTU Digital Portable Air Conditioner

Brand: Whynter | BTU: 11,000 Heat / 12,000 Cool | Power: Corded Electric | Control: Digital / Remote | Price: 💰

The Whynter Elite 12,000 is our pick for the best portable window air conditioner with heat. This well-reviewed unit offers a space-saving design, and 12,000 BTUs of cooling power, and 11,000 BTUs of heat. It’s corded-electric with digital touch and remote control operation and a patented auto-drain function that fully exhausts all condensation. Also notable, the Whynter boasts a 3-speed fan with 2-way directional air louvers, and a carbon air filter with a washable pre-filter.

The Whynter is an especially good choice for attics, users say, and it’s easy to unpack, set up, and operate. Another consumer had good luck using it on an enclosed deck, but it is a little noisy for some. When faced with Florida humidity in a 400 square foot bonus room, though, the Whynter was more than up for the challenge. There are also casters for added mobility.

  • Excellent value
  • Stood up to wildfire smoke
  • Direction clear and easy to read
  • Coolant leaking issue reported
  • Top drain plug loose on delivery
  • Mysterious powering-down issue reported

How We Chose

Using one of the best window air conditioners with heat in the city
Image by Maciej Bledowski / Canva Photos

We evaluated the nine air conditioner units with heat in our ranking on the following five factors:

1

Cooling and Heating Capactiy

The correct cooling and heating capacity, measured in BTUs, has everything to do with the size of the room you intend to cool or heat. Here’s a breakdown:

  • 5,000 to 8,000 BTU: 150 to 350 square feet
  • 8,000 to 12,000 BTU: 350 to 550 square feet
  • 12,000 to 18,000 BTU: 600 to 1,000 square feet
  • Over 25,000 BTU: 1,000-1,500 square feet

2

Energy Rating

To ensure your unit is as energy efficient as possible, look for the Energy Star rating, or a high SEER rating, sometimes called an EER rating, or the energy efficiency ratio. It’s also important at this point to consider the electricity rating. At 115V, most AC units will work in the average household plug. Anything more than that, though, and you might be calling an electrician.

3

Size

Don’t pick out a unit without first considering size and weight. Generally speaking, the higher the BTUs, the bigger and heavier the unit will be. For easier installation, look for a slide-in/slide-out chassis.

4

Features and Warranty

Consider the length and how comprehensive the manufacturer’s warranty is before making your purchase. AC units also come with loads of extra features these days, including remotes, Wi-Fi compatibility, and more. Read the product descriptions carefully and ask yourself which features you need and which ones you can do without.

Our Process

For this guide on the best air conditioner with heating, our team spent 5 hours researching the most popular options from over 45 brands and manufacturers big and small. We then read about forty user reviews (both positive and negative) to discover what shoppers thought about each air conditioner with heating. After comparing this data, we narrowed our list down to the top 9 air conditioners with heat on the market. You can count on this research to guide you to a mindful purchasing decision.

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