Do you need to endure a hot summer in a house that doesn’t have central air conditioning?
A portable air conditioner may be just the appliance you need if you want to cool your room effectively. Without worrying about window units and venting.
Many apartments may not allow window air conditioners due to design restrictions, but portable air conditioners can do the job as long as you can vent the hot air. Let’s check out what makes portable units attractive for cooling a room, and also look at the best models available.
Best Portable AC Units Comparison Chart
Honeywell MN12CES Portable Air Conditioner
Black+Decker BPACT14WT, 14000 BTU Portable Air Conditioner
Whynter ARC-142BX 14000 BTU Portable Air Conditioner
EdgeStar AP12000S Portable Air Conditioner
Emerson Quiet Kool EAPC14RD1 Portable Air Conditioner
Does a Portable AC Really Work
You may be wondering if a portable unit is really efficient. The answer to that is yes, it certainly is if you use it for the intended purpose. A portable AC will work for small, medium and large sized rooms, based on its BTU power.
It will require warm air to be vented outside to be effective, and the condensate will need to be drained. They come in a range of capacities that can handle residential, commercial and industrial requirements.
A Portable AC can cool a room as effectively as a window unit, as long as it is well vented.
Advantages of a Portable Unit
Choosing a portable unit has many advantages over window units or mini split ACs. Firstly, you don’t have to pay for expensive installation, it is quick and simple enough to do yourself. Almost all portable ACs come with window installation kits to help you vent the warm air outside.
Secondly, they are easy to reposition and move around within your home. So you can cool the room you want, without cooling extra rooms. This is particularly useful for apartments which have air-conditioning in some rooms, but not in others. It also helps for events where air-conditioning is needed for a few days, but not on a permanent basis.
Unlike traditional window units, portable units allow you to make full use of your window, giving you an unobstructed view. Except for a small area for venting out the warm air, in case you will be using the window to vent. If natural light or views are important for you, this can be a strong factor.
One of the biggest advantages of portable ACs is that they require minimal installation and can be moved from room to room as needed. This means less inconvenience to set up. And you only have to cool the room you want to, which cuts down on electricity bills.
Portable ACs are also an excellent option for RVs or campers. As well as for recreational homes without air conditioners.
Disadvantages of a Portable AC Unit
Along with their pros, portable units also have some cons. They are typically noisier than window units because portable units are located entirely inside the room. Whereas the window unit noisiest part is located outside.
Secondly, these units do have placement restrictions, due to the need for venting warm air and draining condensate. So they can’t be just placed anywhere, but need to be located near a vent or window, as well as a power outlet for power.
Some units come with condensate pans that fill up with water that is removed from the air, during the dehumidification process. Since it is an integral part of the air conditioning process, this cannot be avoided. Although some of the newer models have an auto-evaporation technology that bypasses this. It can be a bother to have to drain the pan when it fills up.
One Hose vs Two Hose Units
Single hose portable units are inefficient in cooling the room. Because the air that is sent out of the hose is the air from the inside of the room that has been dehumidified. Energy is wasted to dehumidify and cool the incoming air.
However portable AC models that possess two hoses to direct the warm and cooled air to proper locations are much more efficient. They behave much more like traditional window air conditioners. The air is drawn into the unit through the intake, where it is cooled and then sent back into the area. The unit heats up through the cooling process, and the intake hose pulls air from outside the home to cool the air conditioner down. A second hose sends all of the warmed air outside of the home. With this efficient exchange of air, the dual hose system doesn’t have to work nearly as hard as the single hose option.
Dual hose systems may require a little more work to set up. But they are generally easy-to-install and require no additional maintenance.
Quick Take: Best Portable AC Units
These are our recommendations for the best portable AC units:
The Best Portable AC Units
To buy a good portable unit, you must consider its functionality, price and the cooling requirements in your home or office.
The 12,000 BTU portable air conditioner from Honeywell can cool areas up to 450 sq. ft.
It is equipped with a digital LED display, precise touch controls, and remote control.
The AC has 3 operating speeds and an automatic on/off timer for up to 24 hours. It is quiet and powerful, offering optimum cooling, dehumidification and fresh ventilation in a sleek package.
The AC comes with everything needed for installation, including a hose and a window venting kit.
The unit can be moved easily on caster wheels.
This 14,000 BTU AC can cool an area of around 300-350 square feet. The key features include a LED digital display, a 24 hour on/off timer and sleep mode. The 3 operation modes and the bucketless designed cooling unit offer quiet cooling, fan and dehumidification modes.
The filter can be removed and rinsed under a faucet. Vertical motion creates a steady and powerful airflow that provides a consistent temperature in any room in the house. A slide-out filter rinses easily under a faucet for a fresh air feel. The unit can be moved on its 4 caster wheels.
The included installation materials are the exhaust hose and window kit, plus a manual guide for set up.
This 14,000 BTU AC has 4 operational modes: Auto, Air conditioner, Fan or Dehumidifier. It uses the CFC free GREEN R-410A refrigerant as well as advanced self-evaporating technology, to recycle moisture collected during the cooling process. To produce cool air and minimize condensate build-up.
The unit has an auto-restart function to restore the previous settings after a power outage, and a 24hr timer to activate or shut-off. The air is cleaned by a washable Pre-Filter and an Activated Carbon Filter. The unit is recommended for spaces up to a 500 sq. ft.
The noise level is 53 dBA, and the included installation kit contains a plastic exhaust hose and a plastic window kit.
The 12,000 BTU (ASHRAE-128 Standard) / 5,500 BTU (DOE 2017 Standard) can cool up to 425 Square Feet and has 3 fan speeds. It contains a washable pre-filter and one replaceable carbon filter.
The adjustable digital thermostat allows a 61-89 F temp range and can be controlled through remote control. It comes with caster wheels for mobility and has a high 10.0 EER (Energy Efficiency Ratio). It makes use of R410A CFC free refrigerant, so it is environmentally friendly.
For setting up the unit, an exhaust hose and window kit are included.
This 14000 BTU (ASHRAE-128 Standard) / 7800 BTU (DOE 2017 Standard) portable air conditioner is designed to cool a room of up to 350 sq. ft.
It comes with features like remote control, 24-hour on/off timer, and sleep mode. It uses auto evaporation technology to reduce unwanted moisture in the air without any drainage necessary.
Installation is easy with the included window venting kit.
The unit can be installed anywhere.
Venting Your Portable AC Unit
All portable ACs must be vented correctly to function properly. Venting the warm air allows efficient cooling, as the temperature within your room is lowered, while the excess heat is dumped outside. Operating the AC without proper venting won’t work, it will just increase the temperature of your room! The warm air can be vented anywhere outside, whether through the window or a vent. It can even be vented into other rooms if you don’t care about heating them a little.
You may be wondering how easy it is to install the AC. Don’t worry! It’s usually very quick and easy-to-install the venting. And a standard window kit that comes with the AC includes a window bracket, one or two vent hoses, and the vent hose adapters. The average vent hose extends 4 to 5 feet, so you need to install yours close to a window.
Here is a step-by-step guide to set up your portable AC:
Step 1: Attach any hose connectors/adapters and insert the hose (or hoses).
Step 2: Extend the adjustable window kit to the length of your window. If necessary, trim the window bracket to fit your window snugly. Your specific model may come with screws to keep the window kit in place. Then close your window to secure the kit in place.
Step 3: Connect the vent hose to the window kit.
Step 4: Once your unit is properly installed and vented, just plug it in and program your settings. Now you’re all set.
Draining the Condensate
Like all air conditioners, portable units also draw moisture from the air and dehumidify it. The water or condensate needs to go somewhere, and there are three ways the units can handle it.
1. Fully Evaporative
With the newer models, the fully evaporative technology allows ACs to do away with condensate reservoirs or buckets. This means you'll never have to deal with the collected condensate water. These are popular models thanks to the convenience and continuous operation.
2. Gravity Drain with Condensate Pump
Another option for portable models is a gravity drain. You simply attach a hose to the drain port and direct water into a drain or another location. This option means you need to figure out where the water should go, such as out the window or into a drain.
3. Buckets to be Emptied
Most standard portable air conditioners have buckets or reservoirs that need to be emptied periodically. Depending on your humidity and time of use, the frequency may vary from every 8 hours to once a month. The condensate will collect inside the unit. And you'll simply have to turn it off, empty the bucket, and then replace it before cooling starts again. Most units have an auto-switch that turns off the unit once the water reaches a certain limit for safety.
Care and Maintenance
To keep your portable AC in top working condition, some regular maintenance will be very useful. Make sure that you place the unit in a place that is free from dust and dirt – this will prevent your AC motor from getting clogged or dirty. Clean the filter often, and ensure that the carbon filter is replaced every 4-6 months.
Clean the rear vents with a vacuum brush attachment occasionally. Also, clean the exterior of the unit occasionally, and keep it out of direct sunlight to protect the surface and finish. Ventilation and drainage are both important. Ensure that the exhaust hoses are straight and don’t have any kinks in them.
To clean the condenser coils, you can use a spray of a mixture of water and lemon juice or vinegar.
A portable AC unit can be one of the most useful appliances in your home. Especially when you are facing the humid summer heat without any ACs. It can preserve your window view and let in natural daylight while saving utility costs by keeping only one room cool at a time.
If you are looking for the best model for your needs, consult the list we’ve compiled above. Learn the tips you need to keep your AC unit in top condition, and it will reward you the care with years of uninterrupted service.