Window air conditioners with heat can cool a room in summer and provide supplemental warmth when the weather turns cool. The right choice depends on your room size, window opening, electrical setup, and how much heating you need. These five options range from compact 8,000-BTU models to a high-capacity LG unit, with different controls and installation requirements.
Table of Contents
Quick Comparison
| Product | Cooling Coverage | Heating and Standout Features | Key Consideration |
|---|---|---|---|
| Midea 8,000 BTU Smart Inverter Window AC with Heat | Up to 350 sq. ft. | Heat pump, inverter technology, app and voice control | Heat pump works when outdoor temperatures are above 41°F |
| ROVSUN 8,000 BTU Window AC with Heat | Up to 350 sq. ft. | 4-in-1 cooling, heating, dehumidifying, and fan modes | Heating capacity is 4,000 BTU |
| LG 18,000 BTU Window AC with Heat | Up to 1,000 sq. ft. | High cooling capacity, remote, and auto restart | Requires a 230/208V outlet and NEMA 6-20 plug |
| Bonnlo 8,000 BTU Wi-Fi Window AC with Heat | Up to 350 sq. ft. | 4,000-BTU heat, Wi-Fi, and Alexa compatibility | Check window fit and the unit’s installation requirements |
| LG 12,200 BTU Window AC with Heat (Renewed) | Up to 570 sq. ft. | 12,200-BTU cooling and 11,200-BTU supplemental heat | Renewed model that requires a dedicated 230V circuit |
Our Picks: Best Window Heat And Air Conditioners reviews
1. Midea 8,000 BTU Smart Inverter Window AC: Best for Smart, Quiet Comfort
This Midea combines 8,000-BTU cooling with supplemental heat, dehumidifying, and fan modes. It is designed for rooms up to 350 square feet, making it a fit to consider for a bedroom, home office, or apartment living area within that range.
Its variable-speed inverter is a notable distinction from the other compact options here. The listing says it is Energy Star certified and can use up to 35% less energy than the Energy Conservation Standard. It also lists noise as low as 45 dBA, plus app control, Alexa and Google Assistant compatibility, a remote, and a washable filter. Those controls make it a flexible option if you want to adjust settings without reaching the unit.
There are two important fit and heating details to check. The heat-pump function works when the outdoor temperature is above 41°F, so this is supplemental warmth rather than a solution for colder conditions. The unit is designed for double-hung windows 24 to 38.5 inches wide, with at least 14.5 inches of vertical opening.
Pros:
- Cooling coverage specified for rooms up to 350 square feet
- Inverter operation, Energy Star certification, and ECO mode
- App, voice-assistant, remote, and control-panel operation
- Listed noise level as low as 45 dBA
Cons:
- Heat-pump function requires outdoor temperatures above 41°F
- Window size requirements may rule it out for some installations
Verdict: Choose the Midea if you want a feature-rich 8,000-BTU unit with smart controls and quieter listed operation, and your window and mild-weather heating needs suit its specifications.
2. ROVSUN 8,000 BTU Window AC: Best for Straightforward 4-in-1 Use
The ROVSUN is an 8,000-BTU window air conditioner intended for rooms up to 350 square feet. It adds a 4,000-BTU heater, along with dehumidifier and fan modes, so one unit can handle several basic comfort tasks through the year.
Its controls are deliberately simple: the digital display and remote operate the fan speed, 24-hour timer, ECO mode, automatic mode, and fan mode. The stated temperature range is 61°F to 88°F. The product description lists noise as low as 52 dB and specifies a 115V supply, details worth comparing with your room and electrical setup.
Compared with the Midea, the ROVSUN has fewer listed smart features and a higher stated minimum noise level, but it gives clear heating capacity information. Its 4,000-BTU heat rating is best treated as supplemental warmth; check whether that level meets your needs rather than assuming it can serve as your main heat source.
Pros:
- Cooling coverage specified for rooms up to 350 square feet
- Combines cooling, 4,000-BTU heating, dehumidifying, and fan modes
- Includes a remote and 24-hour timer
- Lists a standard 115V electrical supply
Cons:
- Heating capacity is lower than the cooling capacity
- No app or voice control is listed
Verdict: The ROVSUN is a practical option if you want a simple four-mode unit for a room up to 350 square feet and do not need app-based controls.
3. LG 18,000 BTU Window AC: Best for Larger Rooms
With 18,000 BTUs of cooling and stated coverage up to 1,000 square feet, this LG is the high-capacity pick in the group. It may suit a large room or a connected area where smaller 8,000-BTU models may not provide enough cooling capacity. The manufacturer’s coverage figure is a guide, so room layout and other conditions still matter.
The unit includes supplemental heat, two speeds for cooling, heating, and fan operation, a remote, a digital control panel, and a 24-hour on/off timer. Its four-way air deflection lets you direct airflow, while auto restart is designed to turn the unit back on after power is restored. A removable, washable filter and filter reminder are also listed.
Electrical compatibility is the main hurdle. This model requires a 230/208V LCDI plug with a NEMA 6-20 configuration, rather than a standard household outlet. Confirm that your room has a compatible circuit before buying. Compared with the smaller picks, it offers much greater stated coverage but requires more planning for installation and power.
Pros:
- Highest stated cooling capacity in this lineup
- Designed to cool rooms up to 1,000 square feet
- Includes remote, timer, auto restart, and adjustable airflow
- Removable, washable filter with a filter reminder
Cons:
- Requires a 230/208V circuit and NEMA 6-20 plug
- Supplemental heat is not described with a BTU rating in the supplied details
Verdict: Consider this LG if you need substantial cooling for a large space and already have the required electrical setup; it is not the convenient choice for a standard outlet.
4. Bonnlo 8,000 BTU Wi-Fi Window AC: Best for App and Alexa Control
The Bonnlo pairs 8,000-BTU cooling with 4,000-BTU heating and is listed for rooms up to 350 square feet. It also provides fan and dehumidifying functions, making it a multi-mode option for a bedroom, apartment, or home office within its stated coverage range.
Its main distinction is Wi-Fi control. The product description says you can use a smartphone app or Alexa voice commands to adjust temperature, set schedules, and change modes. ECO mode is included, and the listing specifies a 115V supply. It also lists noise as low as 52 dB, putting its stated level above the Midea’s minimum but in line with the ROVSUN’s figure.
The Bonnlo and ROVSUN have similar stated cooling coverage and heating capacity. The Bonnlo’s smart controls may be useful if you want to schedule operation or adjust settings remotely, while the ROVSUN keeps to a remote and display. The supplied details do not state the Bonnlo’s window dimensions, so confirm the fit and installation requirements before ordering.
Pros:
- 8,000-BTU cooling and 4,000-BTU heating
- Designed for rooms up to 350 square feet
- Wi-Fi app and Alexa control are listed
- Includes ECO mode and scheduling features
Cons:
- Listed noise level is as low as 52 dB, not as low as the Midea’s stated minimum
- Window dimensions are not included in the supplied product details
Verdict: Pick the Bonnlo if app and Alexa controls matter to you and you have confirmed that the unit will fit your window.
5. LG 12,200 BTU Renewed Window AC: Best for Mid-Size Rooms
This renewed LG model is listed with 12,200 BTUs of cooling and 11,200 BTUs of supplemental heat, with stated cooling coverage up to 570 square feet. That places it between the compact 8,000-BTU picks and the 18,000-BTU LG in this lineup. Its modes include cooling, heating, fan-only, and dehumidifying.
The listing also describes an LED display, Energy Saver mode, and auto restart. It uses R32 refrigerant, which the product description identifies as an alternative to older refrigerant types. The significant planning point is power: this model runs on a dedicated 230V circuit, so check your electrical setup before choosing it.
Because the product is listed as renewed, it is worth checking the item condition and applicable seller terms before purchase. Compared with the larger LG, it has less stated cooling coverage; compared with the 8,000-BTU units, it offers higher listed cooling and heating capacities. Its high-voltage requirement is still a major limitation for homes without a compatible circuit.
Pros:
- 12,200-BTU cooling and 11,200-BTU supplemental heat
- Stated cooling coverage up to 570 square feet
- Includes cooling, heating, fan, and dehumidifying modes
- Energy Saver mode and auto restart are listed
Cons:
- Requires a dedicated 230V circuit
- Renewed condition may not suit shoppers seeking a new unit
Verdict: This LG is worth considering for a mid-size room if you want higher capacity than the compact models, accept a renewed unit, and have the required 230V circuit.
How to Choose a Window Air Conditioner with Heat
Match cooling capacity to your room
Start with the room’s square footage and compare it with the manufacturer’s stated coverage. The compact Midea, ROVSUN, and Bonnlo models are listed for spaces up to 350 square feet. The renewed LG is listed for up to 570 square feet, while the larger LG lists coverage up to 1,000 square feet. These are product specifications, not guarantees for every room; layout and other conditions can affect comfort.
Decide how much heat you need
Window-unit heat is described as supplemental on several of these models. Compare heating capacity as well as cooling capacity: the ROVSUN and Bonnlo list 4,000 BTUs of heat, while the renewed LG lists 11,200 BTUs. The Midea uses a heat pump, and its heating function works when the outdoor temperature is above 41°F. If you need a primary heat source or warmth in colder conditions, check the unit’s heating limits carefully.
Check the electrical requirements first
Electrical fit can determine whether a model is practical for your home. The ROVSUN and Bonnlo list 115V operation. The larger LG requires a 230/208V supply with a NEMA 6-20 plug, and the renewed LG requires a dedicated 230V circuit. Verify your outlet and circuit before ordering; if you are unsure, ask a qualified electrician rather than relying on the plug shape alone.
Measure the window opening
Check both the window type and its opening dimensions against the installation instructions. The Midea is specified for double-hung windows 24 to 38.5 inches wide and requires at least 14.5 inches of vertical clearance. The other supplied product details do not provide complete window measurements, so confirm them with the seller or product documentation before purchase.
Compare controls and daily convenience
Think about how you want to operate the unit. The Midea offers app and voice-assistant control alongside a remote and control panel. The Bonnlo lists Wi-Fi app and Alexa control. The ROVSUN and LG models include more conventional display and remote controls. A timer can help you schedule operation, while auto restart can be useful where the feature is included and power interruptions occur.
Consider noise, cleaning, and efficiency features
If the unit will run in a bedroom or work area, compare the listed noise information: Midea specifies operation as low as 45 dBA, while ROVSUN and Bonnlo list levels as low as 52 dB. The Midea is described as Energy Star certified and uses inverter technology; the other listings include features such as ECO or Energy Saver modes. Check whether the filter is washable and easy to access, and follow the product instructions for regular cleaning.
Understand renewed-product condition
The 12,200-BTU LG is specifically listed as renewed. If you are considering it, read the listing’s condition details and check the applicable seller terms before buying. This matters especially when comparing it with new models, since the product condition is part of the purchase decision, separate from its capacity and features.
Frequently Asked Questions
Can a window air conditioner with heat replace a furnace?
Do not assume it can. Several models describe their heat as supplemental, and the Midea heat-pump function has an outdoor-temperature limit. Compare the unit’s heating capacity and operating conditions with your climate and heating needs before relying on it.
Which model is listed for the largest room?
The 18,000-BTU LG is listed for rooms up to 1,000 square feet. It also requires a 230/208V outlet and NEMA 6-20 plug, so confirm the electrical setup before considering it.
Which of these models has smart controls?
The Midea lists app control plus Alexa and Google Assistant compatibility. The Bonnlo lists Wi-Fi app control and Alexa compatibility. Check the product details for the control functions available with the particular model.
What is the difference between the Midea and the other compact units?
All three compact models are listed for cooling spaces up to 350 square feet. The Midea stands out for inverter technology, app and voice controls, and a listed noise level as low as 45 dBA. ROVSUN and Bonnlo specify 4,000-BTU heating, while the supplied Midea details describe a heat-pump function that works above 41°F outdoors.
Do these units fit every window?
No. Window air conditioners have specific installation requirements. The Midea’s listing provides double-hung window dimensions, but the supplied information for the other models does not give complete window measurements. Check the installation guide and measure your opening before purchasing.
Can I plug the LG models into a standard outlet?
The 18,000-BTU LG requires a 230/208V LCDI plug with a NEMA 6-20 configuration. The renewed 12,200-BTU LG requires a dedicated 230V circuit. Neither should be treated as a standard-outlet model; verify your electrical setup first.
Which model is the best fit for a small room?
The Midea, ROVSUN, and Bonnlo are each listed for rooms up to 350 square feet. Choose among them based on your window dimensions, heating needs, preferred controls, and electrical setup rather than BTU capacity alone.
Final Recommendation
For a well-equipped compact option, the Midea is the strongest match if you want inverter technology, smart controls, and a low listed noise level—and your window and mild-weather heating needs fit its requirements. Choose the ROVSUN for straightforward controls, or the Bonnlo if Wi-Fi and Alexa access are priorities. For larger spaces, consider the LG models only after confirming their higher-voltage electrical requirements. Compare room size, window fit, and heating limits before making your decision.
