Midea 8,000 BTU Inverter Window AC with Heat Review: Year-Round
An ENERGY STAR certified 8,000 BTU inverter window air conditioner with heat pump heating, app and voice control and a listed noise level as low as 45 dBA. A strong fit for bedrooms and apartments up to 350 sq. ft.
By Daniel Brooks
Updated October 8, 2026
The Midea 8,000 BTU Inverter Window AC with Heat (model MAW08HV1CWT) combines cooling, heat pump heating and dehumidifying in one window unit for rooms up to 350 square feet. Among conventional window air conditioners, it stands out for its inverter compressor, ENERGY STAR certification and app and voice control.
It is aimed at people who want one unit to cover summer and the cooler shoulder seasons without a separate heater. The key question is whether its heat pump limits and larger size suit your room and window. We evaluated it based on the manufacturer’s specifications.
Our Verdict
This Midea is one of the more complete window units you can buy at this capacity. Its strongest points are the variable-speed inverter compressor, ENERGY STAR certification, a listed noise level as low as 45 dBA, five modes including Heat, and control from the panel, remote, SmartHome app, Alexa or Google Assistant.
The main trade-off is that heating has limits. Midea notes the heat pump works when the outside temperature is above 41°F, so it supplements rather than replaces a primary heater in cold weather. At 56 pounds and 22.17 inches deep, it is also heavier and bulkier than basic 8,000 BTU units. If you want quiet, efficient cooling with shoulder-season heat for up to 350 square feet, it is a strong choice.
Midea 8,000 BTU Smart Inverter Window Air
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Midea |
| Model | MAW08HV1CWT |
| Type | Inverter window air conditioner with heat pump |
| Cooling Capacity | 8,000 BTU |
| Heating | Heat pump, works above 41°F outside |
| Room Size (listed) | Up to 350 sq. ft. |
| ENERGY STAR | Certified |
| Efficiency | 14.5 (listed as SEER), 407 kWh per year |
| Noise Level | As low as 45 dBA |
| Voltage | 115V |
| Window Fit | Double-hung, 24″ to 38.5″ wide, 14.5″ clear vertical opening |
| Dimensions | 22.17″D x 19.41″W x 13.9″H |
| Weight | 56 pounds |
| Modes | Heat, Auto, Cool, Dry, Fan, plus ECO |
| Fan Speeds | Auto, High, Medium, Low |
| Smart Controls | SmartHome app, Alexa, Google Assistant, remote |
| Refrigerant | R-32 |
| Warranty | 1 year limited |
Cooling Capacity and Room Size
Midea rates the unit at 8,000 BTU for rooms up to 350 square feet. That covers a large bedroom, a studio apartment or a modest living room. Midea describes it as suited to large rooms up to that size, though 350 square feet is better read as the upper limit for this capacity.
The inverter matters here. Instead of cycling the compressor fully on and off, a variable-speed inverter adjusts its output to hold the set temperature, which tends to give steadier comfort. Even so, a sunny room with high ceilings near 350 square feet may need more capacity.
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 |
Adjust for your room: 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.
At its listed 8,000 BTU, it lines up with rooms of about 300 to 350 square feet, so Midea’s coverage claim sits at the top of the chart’s range for this capacity.
Installation and Fit
The unit is designed for double-hung windows with openings from 24 to 38.5 inches wide, and the lower sash must open enough for a clear vertical opening of 14.5 inches. That height requirement is greater than many small units need, so measure before you order.
It measures 19.41 inches wide, 22.17 inches deep and 13.9 inches tall, and weighs 56 pounds. An installation kit is included. Given the weight, plan for two people to lift it into place, and secure it with the supplied hardware exactly as the manual describes so it cannot shift or fall.
Noise, Energy Use and Efficiency
Midea lists a noise level as low as 45 dBA, the lowest figure on its low setting, and markets it as quiet enough for calls and sleep. Sound at higher fan speeds will be louder, and the seal around the window affects what you hear.
The unit is ENERGY STAR certified. The listing gives an efficiency figure of 14.5, labeled as SEER, and an annual energy use of 407 kWh. Midea also claims up to 35% energy savings compared with the Energy Conservation Standard, attributed to the inverter. ECO mode adds another way to reduce consumption.
Controls and Smart Features
The LED panel, remote, SmartHome app and voice control through Alexa or Google Assistant all reach the same functions. You get five modes (Heat, Auto, Cool, Dry and Fan), fan speeds of Auto, High, Medium and Low, a 24-hour timer and an ECO energy saver.
A Swing button moves the louvers up and down to spread the airflow. App control is most useful if you want to cool or warm the room before you get home, or adjust it from bed without finding the remote.
Maintenance and Drainage
The washable filter is accessed from the front panel, which makes regular cleaning quick. Midea recommends cleaning it regularly to maintain performance, and with both heating and cooling in use, it may run for more months of the year than a cooling-only unit.
Dry mode handles dehumidifying on muggy days. The listing does not describe condensate handling or a drain port, so check the manual for drainage, especially when running Heat mode, and for seasonal storage steps.
Pros and Cons
| Pros | Cons |
|---|---|
| Inverter compressor and ENERGY STAR certified | Heat pump only works above 41°F outside |
| Listed noise as low as 45 dBA | Heavy at 56 pounds |
| Heat, Dry, Auto, Cool and Fan modes | Needs a 14.5″ clear vertical opening |
| App, Alexa and Google Assistant control | Deep 22.17″ cabinet sticks out further |
| 24-hour timer and ECO mode |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Rooms up to 350 sq. ft. needing cooling and mild-weather heat | Rooms larger than 350 sq. ft. |
| Light sleepers who want a low listed noise level | Anyone needing heat in freezing weather |
| Smart home users with Alexa or Google Assistant | Windows with less than a 14.5″ opening |
| Buyers who value an inverter and ENERGY STAR rating | People who must install it alone |
| Apartment dwellers wanting one unit for most of the year | Casement or sliding window owners |
Final Verdict
The Midea 8,000 BTU Smart Inverter Window Air Conditioner with Heat brings features usually found in pricier systems to a standard window. The inverter, ENERGY STAR certification, a listed 45 dBA, app and voice control and heat pump heating make it a versatile unit for a bedroom or apartment. The compromise is a heater that only works above 41°F outside, plus a heavier, deeper cabinet that needs a taller window opening. If those limits fit your space, you can check the current price and details for the Midea 8,000 BTU Smart Inverter Window Air Conditioner with Heat.
Frequently Asked Questions
Can this Midea unit heat a room in winter?
It has a heat pump that Midea says works when the outside temperature is above 41°F. Below that, it will not provide heat, so treat it as supplemental heating for fall and spring rather than a winter heater.
What size room does it cool?
Midea lists it for rooms up to 350 square feet. On the ENERGY STAR chart, 8,000 BTU matches rooms of about 300 to 350 square feet.
Does it work with Alexa or Google Assistant?
Yes. The listing says it works with the SmartHome app and with voice commands through Alexa and Google Assistant, as well as the remote and control panel.
Will it fit my window?
It fits double-hung windows from 24 to 38.5 inches wide, and the lower sash must open to give a clear vertical opening of 14.5 inches. It is not designed for casement or sliding windows.
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.