Ever unplugged your window AC every October only to drag out a separate space heater by December? I used to do the same thing until I started testing window units that handle both jobs. After running these through actual summer heat waves and the first cold snaps of fall, here is my honest list of the best window air conditioner with heat options in 2026.
1. Midea 12000 BTU Window Air Conditioner with Heat
This is the unit I installed in my own living room for the season, and it earned its keep once fall temperatures dropped. The inverter compressor kept noise around 45dB even on high, and the SmartHome app let me start cooling before I walked in the door on hot afternoons. Switching to heat mode in October was as simple as tapping the mode button, though it stopped working once outside temps dropped below 41°F, which is worth knowing before you rely on it as your only heat source.
Pros:
- Covers large rooms up to 550 square feet
- Quiet inverter operation around 45dB
- App, remote, and voice control through Alexa or Google
- Washable filter for easy maintenance
Cons:
- Heat pump stops working below 41°F outside
- Heavy at close to 58 pounds for installation
2. Midea 8000 BTU Smart Inverter Window Unit with Heat
This smaller Midea model became my pick for a guest bedroom around 350 square feet. The five modes covered everything I needed from a single unit, and the inverter technology genuinely showed up on my energy bill compared to the older fixed speed unit it replaced. Installation into a double hung window took under thirty minutes once I had the bracket lined up.
Pros:
- Energy Star certified with up to 35 percent energy savings
- Five modes including heat, cool, and dry
- Quiet operation around 45dB
- Compatible with Alexa and Google Assistant
Cons:
- Heat function limited to supplemental warmth, not a primary source
- Only fits double hung windows 24 to 38.5 inches wide
3. ROVSUN 8000 BTU Window Air Conditioner with Heat
This was my budget pick for a home office that needed both cooling in summer and a warmer boost during early morning starts in fall. The app control worked reliably once paired, and the included side panels made the install noticeably easier than units that leave you buying panels separately. At 69 pounds it took two people to lift into the window frame comfortably.
Pros:
- Includes 4000 BTU heating alongside 8000 BTU cooling
- App and voice control included
- Side panels and install parts included in the box
- Five modes with 24 hour timer
Cons:
- Heavier unit that benefits from a second set of hands to install
- Window width range is narrower than some competitors
4. Keystone 23200 BTU Window Air Conditioner with Supplemental Heat
This is the unit I recommend for anyone with a genuinely large room, since 1500 square feet of coverage is more than double most units on this list. The smart remote reads the temperature from wherever you are sitting rather than just at the unit itself, which gave noticeably more even comfort throughout the room. Just remember the heating mode is supplemental and rated for 23 to 76 degree outside temperatures, not a true furnace replacement.
Pros:
- Covers large rooms up to 1500 square feet
- Smart remote reads room temperature accurately
- Energy Saver and Sleep modes reduce electric bills
- 4 year additional warranty on the sealed system
Cons:
- Heavy at just over 121 pounds
- Requires a 230V outlet for installation
5. Garvee 8000 BTU Window AC and Heater Combo
I tested this one in an apartment bedroom and appreciated how many settings it packed into a fairly compact unit. The clean filter alert is a small feature that made a real difference, since I never had to guess when maintenance was due. Fan speed adjustments were noticeably smoother than some of the more basic units I have tried in this price range.
Pros:
- Five working modes including heat and dehumidify
- Clean filter alert simplifies maintenance
- App, remote, and voice control via Alexa
- 24 hour programmable timer for energy savings
Cons:
- Requires a 208 to 230V outlet depending on configuration
- Noise level is a bit higher at 52dB compared to inverter models
6. LG 23000 BTU Window Air Conditioner with Supplemental Heat
This LG unit handled a large open living space better than I expected from a window mounted unit, covering close to 1400 square feet. Auto restart after a power outage meant I never came home to a warm room after a storm knocked out power while I was away. The two heating speeds gave enough range to fine tune warmth on chillier fall mornings.
Pros:
- Cools rooms up to 1400 square feet
- Auto restart after power failure
- Two distinct cooling and heating speeds
- Reliable LG build quality
Cons:
- Louder at up to 62dB on low mode
- Heavy at 145 pounds, needs a sturdy window frame
7. ROVSUN 11000 BTU Inverter Window Air Conditioner with Heater
This is the quietest unit I tested this season, dropping to just 40dB in sleep mode, which made it my top pick for a bedroom. The inverter technology delivered real energy savings over a full month of use, and the 4-way swing spread air more evenly than fixed vent units. The heating side is modest at 1100 BTU, so treat it as a supplemental boost rather than your main heat source.
Pros:
- Extremely quiet at 40dB in sleep mode
- Inverter technology for genuine energy savings
- WiFi and voice control through Alexa or Google
- 4-way swing for even airflow
Cons:
- Heating output is modest at 1100 BTU
- Heat mode disabled below 5°F outside
8. Bonnlo 18000 BTU Window Air Conditioner with Heat
This became my pick for covering a full open concept living and dining area at 1000 square feet. The dual heating and cooling range gave real flexibility switching between seasons, and the eco mode noticeably cycled the compressor less during mild weather, which helped keep the unit quieter than I expected for its size.
Pros:
- Covers rooms up to 1000 square feet
- Strong 8600 to 10600 BTU heating range
- WiFi and voice control via Alexa
- Eco mode reduces unnecessary compressor cycling
Cons:
- Requires a 230V outlet
- Noise level runs up to 56dB
9. LG 7600 BTU Window Air Conditioner with Heat
Rounding out the list is the smallest and most affordable unit I tested, sized right for a single bedroom around 330 square feet. The slide in out chassis made seasonal removal simpler than fully bracket mounted units, and auto restart kept the room at temperature through a couple of brief outages during a storm.
Pros:
- Compact and budget friendly for smaller rooms
- Slide in out chassis simplifies installation and removal
- Auto restart after power failure
- Two cooling, heating, and fan speeds
Cons:
- Smaller 330 square foot coverage limits it to single rooms
- Only two fan speeds compared to multi speed units on this list
Final Thoughts
After running all nine of these window air conditioners with heat through a full season of use, my honest recommendation is that the best choice for you comes down to room size and how cold your winters actually get. For smaller rooms, the LG 7600 BTU and Midea 8000 BTU units deliver reliable comfort without overspending. For larger spaces, the Keystone and LG 23000 BTU models provide genuine year round coverage. Just remember that supplemental heat in a window unit works best alongside your main heating system, not as a full replacement for it.
