EdgeStar 12,000 BTU Portable Air Conditioner and Heater Review

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With 12,000 BTUs of cooling power, the EdgeStar portable air conditioner and heater combination can efficiently heat, cool, or dehumidify a single room up to 425 square feet. 

This unit also comes with a window kit that allows easy and convenient installation, while its dual filtration provides fresh, clean air.



Best Features

Portable Air Conditioner and Heater

12,000 BTUs – For Large and Mid-sized Rooms

The EdgeStar 12,000BTU portable AC is perfect for large and mid-sized rooms up to 425 sq. feet.

 You can adjust the fan speed to alter the airflow or noise level, depending on the situation. 

For smaller rooms, or when you are sleeping at night a fan speed of around 60 rpm is ideal. 

On hot days or in larger rooms, a fan speed of about 80 rpm is best.

Three climate control modes

* Air conditioner (heating/cooling) To heat or cool the room, you adjust the thermostat. Depending on the temperature you want, the unit will blow hot or cold air. The thermostat temperature range is from 61F to 75F.

* Dehumidifier: This is a mode that removes moisture from the air. The unit can capture up to 81 pints per day.

This AC is useful all year round because it has both cooling and heating. 

Dual Filters

Two filters remove most allergens and solid pollutants from indoor air. 

The pre-filter catches large particles, while the carbon filter captures smaller particles and eliminates foul odors.

This makes sure the air in your room is fresh and comfortable. This is especially important if you suffer from allergies or asthma.

HEPA air purifiers are more suitable for those with severe allergies or respiratory problems. You can find many high-quality, compact models that are suitable for any room size.

Easy Installation

Portable Air Conditioner and Heater

Venting this unit must be done through a sliding door or window. The kit includes a window venting kit, which is easy to install.
You can vent the air through a sliding glass door if there are no windows in the area where you will be using it. You will need to purchase a special kit.

It takes only a few minutes to install. It can be set up in different rooms at different times during the day. It is easy to move it from one room to another with the caster wheels, but not up the stairs.


This air conditioner doesn’t use an ozone-damaging refrigerant. Instead, it conforms to the RoHS (Restrictions on Hazardous Substances Directive).

Automatic Restart

The current settings are not lost if the unit is removed or disconnected. It automatically reconnects to the original settings and restarts. You don’t need to reset it again.


The AC has an integrated evaporator that exhausts moisture from the outside via the window vent.

It doesn’t always work, as with all portable ACs that self-evaporate, and it will stop working if it is in high humidity areas.

This model is best to be careful of if you live in a humid environment. Connect a drain hose at the drain plug to fix any leaks or problems. The plug may be almost at the floor level, so you might need to elevate the unit.


This unit is leak-proof. The auto-evaporator is efficient at preventing water from building up inside. 

However, if you live in humid areas, the evaporator could still leak onto your floors. If you see a puddle around the drain plug, be prepared to attach a drain line.

The noise is another issue.  You should turn up the volume if you’re watching TV while it is on. 

Definitely select the lowest fan speed if you use it in your bedroom. Even then, the noise emitted is still louder than white noise. 

This unit may not be a good choice for you if you’re sensitive to noises.



The EdgeStar portable heater + AC is ideal for most homes. It is easy to set up, simple to use, and can heat or cool most rooms.  And the price is excellent.

For quiet operation, we suggest you reduce the fan speed. 

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