Portable AC Unit

9 Tips to Using a Portable Air Conditioner

How to Get the Most Out of Your Portable AC

Like any new appliance you bring into your home, a portable air conditioner requires a little bit of getting used to, plus the typical cleaning and maintenance to ensure it is operating to its full potential. Regardless of where you install it or how often you use it, getting to know your indoor air conditioner and how it works within each room its placed, will go a long way in helping you get the most out of it.

To help you learn how to use your portable air conditioner, we’ve but together the following tips. These tips are designed to help you increase its efficiency, longevity and overall cooling ability. For more technical info, please refer to our list of FAQs here, or the user manual that came with your portable AC.

1. Strategic Installation

Be mindful of where your portable AC is installed. While not always avoidable, there are certainly some areas of your home that you should try to stay away from when you’re installing your unit.

Portable Air Conditioner

Sunny Spots

If possible, you will want to try to avoid placing the portable AC in an area that gets a lot of afternoon sun. If the heat of the sun is bearing down on your AC, it will likely need to work harder to keep the room at your desired temperature. This extra work may eventually lead to a shorter lifespan.

Humid Spots

It’s also wise to install and use your air conditioning unit in rooms that have low humidity levels. This is because the higher the relative humidity is inside the room, and directly surrounding the AC unit, the more condensation it will create.

Depending on the type of portable air conditioner you are using, this extra condensation may increase the frequency that it needs to be drained and cleaned. Failing to remove this will, ultimately, lead to the unit malfunctioning.

2. The Amount of Space Between Walls

One of the main benefits of this type of air conditioner is the fact that it’s portable. This gives you quite a bit of flexibility in the location of your home that it can be installed.




However, it’s still important to pay close attention to where you place it.

No matter where you decide to install the appliance, it is very important that you leave adequate space between the walls and the unit itself. Failing to leave enough space will limit the airflow. When your unit is unable to draw in enough air while it is in use, its output is reduced. As a result, this reduced output makes it harder for your portable air conditioner to cool the room to your desired temperature.

Refer to the user manual to know how much space the manufacturer recommends for your specific model.

3. Ventilation

No matter what type of room air conditioner you are using in your home, ventilation is always going to be one of the most important factors for ensuring optimal operation and a long life of the appliance.

Window Vent Kit for Portable AC

The importance of ventilation cannot be overstated, but it’s especially important when it comes to portable air conditioners.

Proper ventilation will direct the hot air from the compressor and out of the room. This will help prevent your AC unit from overheating, as well as keep the temperature inside your room from going up.

Use the Right Vent Kit For Your Window

Most portable AC units come with a window ventilation kit that’s designed to fit the majority of “standard-sized windows” in homes. However, depending on when your home was built, as well as the region you live or the style of your home, the definition of a “standard-size window” will vary.

It is unlikely that you should have any issues getting your ventilation kit to fit the windows in your home, but if you do, there are other ventilation options available, including kits for sliding doors and drop ceilings.

4. Keep the Exhaust Hose Straight

Now that we have ensured that the portable AC is properly ventilated, let’s now take a look at the exhaust hose. You will want to limit the amount of twists, kinks or coils in the hose leading from the unit to the window. The exhaust hose should remain straight with minimal contortions.

Portable Air Conditioning

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It is strongly recommended that you minimize any kinks in the exhaust hose that will limit the airflow or reduce ventilation. This may require a shorter exhaust hose, or just simply being mindful of where/how it is installed.

What Happens If the Exhaust Hose is Twisted?

When you have a long and twisted exhaust hose attached to your portable air conditioner, the unit has a harder time with ventilation.

As a result, the moisture in the air being expelled will start to accumulate inside the hose, and eventually start to trickle back down into the unit itself. If this happens, the cooling efficiency and the lifespan of the air conditioner may be reduced.

5. Clean & Replace Filter Regularly

This is probably pretty obvious to all homeowners, but the filter in your air conditioner should be changed regularly. This is not only important to ensure proper operation and cooling, but is essential for maintaining your indoor air quality.

How Often Should I Change It?

The frequency that you clean or change your filter all depends on how often you use the AC unit. It would be wise to inspect it every 6 to 8 weeks, just to make sure that it is in good condition. If your home is dusty, or if someone in your family is prone to allergies, then you may want to consider cleaning or replacing your filter more often.




What Happens If I Don’t Change the Filter?

If you’re using a clogged or dirty air filter, it may reduce the intake of the unit which may lead to a variety of problems.

These problems include:
  • Diminishes the efficiency, costs more to use.
  • Harder to reach and maintain desired temperature.
  • Forces the AC unit to work harder than it should.
  • May compromise indoor air quality.

Many of these issues will only occur when the filter is neglected for an extended period of time, but nonetheless, this shows why it’s important for all homeowners to regularly check and replace the filters in their air conditioners.

What If My Portable AC Has Multiple Filters?

Depending on the brand and model of the portable AC you’re using in your home, you may have multiple filters inside. All portable AC units come with a pre-filter, and don’t always require the use of other filters.

While these pre-filters are great at reducing large particulates that may be circulating in your air, they do very little for the common allergens that are known to lead to health complications, such as mold spores or pet dander. This is why it’s recommended that you use another type of air filter in your portable air conditioner.

6. Keep it Clean

Keeping your portable air conditioner clean is one of the easiest ways you can keep the device working properly, and it doesn’t take much work to complete.

AC Coil Cleaner

The Simple Clean:

Simply wipe down the outside of the unit down with a damp cloth. Avoid using excessively hot water or any sort of cleaning chemicals that may damage the exterior.

How Often? Do this every 4-6 weeks.

The Deep Clean:

Unplug your unit and clean the condenser coils to increase its efficiency. You can either purchase a coil cleaner to use or make your own cleaning solution with water and lemon juice. Spray the solution on the coils and remove after a few minutes.

How Often? Do this once a year.

The Professional Clean:

Sometimes, even when you clean the unit on a regular basis, you may require professional service to improve its functionality. If you experience issues with your unit that you are unable to resolve on your own, don’t hesitate to contact a professional air conditioning service to clean and inspect the appliance.

How Often? As needed.

7. Store it Properly When Not In Use

When you have no plans on using your portable air conditioner, it is recommended that you store it away to keep it safe for the next season. Try to avoid storing your AC unit in an area that has extreme temperatures, such as the garage or patio.

Checklist for Storing Portable Air Conditioners

Before you disassemble your AC unit and put it away into storage, it is strongly recommended that you do the following tasks.

  • All water has been drained from the unit.
  • Turn unit on fan setting to help the inside dry completely.
  • Deep clean all other parts and allow to dry, specifically exhaust hoses and drain pains.
  • Compress the exhaust hose to prevent damage while in storage.
  • Cover the unit with a sheet to prevent dust or other debris from accumulating.
  • Store your portable AC indoors in a climate-controlled area.

8. Electrical Requirements

When it comes to the power source for portable air conditioners, most homeowners shouldn’t have any issues. The vast majority of these AC units are designed to operate on the standard 120v electrical outlets commonly found in homes.




This is a pretty essential feature, as it would be difficult to move the AC unit from room to room if it required a different receptacle.

It may be a good idea to use a surge protector that can add a layer of protection against sudden power failures. It’s also recommended that you are mindful of how many appliances are plugged into the outlet, as to not overwhelm the circuit.

Note: This applies to the majority of portable air conditioners used to cool rooms in your home. If you’re using a commercial-size unit or a high-BTU air conditioner, you may need more electricity. All electrical requirements will be found in the user manual.

9. Pre-Cooling & Better Circulation

To help your portable AC unit cool your down in an efficient manner, it is recommended that you turn it on shortly before the room gets too hot or uncomfortable. If you wait until the sun is shining bright and the temperature is at its peak, the air conditioner will need to work harder, and take longer, to reach your desired temperature.

Another tip that every homeowner should know, is to use a small oscillating fan near the unit. This will help the cool air circulate throughout the room, and make you feel more comfortable.


Final Thoughts

There are many benefits that come from a portable air conditioner, but when you know how to strategically use it, you’ll find that you can improve its efficiency and extend its life.

By following the usage and maintenance tips listed above, you put yourself in the position to get the most from your AC unit, all while staying cool and saving money.


0 thoughts on “9 Tips to Using a Portable Air Conditioner

  • My electricity usage sky-rocketed after using the portable air conditioner.
    At times it chips out and restarts after about 5 minutes.

    What am i doing wrong to cause this huge increase in consumption?

  • Thanks for helping me understand that deep cleaning is a must whenever you disassemble or store your equipment especially the hoses and the drain. I will share this with my uncle since he will be buying one for personal use. He said that it will only be for the winter season, and he will keep it during the summer.

  • It’s use a lot of energy than Benefit and waste time and only a little change temperature down I bought one protable ac I gonna after two days used throw away that product.

  • SCARLET BRADLEY says:

    If I am using a portable A/C and not using my central a/c should the vents on my central A/C be open or closed or does it make a difference?

  • Heating in Gaithersburg says:

    Good heating and air conditioning services do their best to regulate these conditions to make sure you are comfortable in the home. Here, are a few of the benefits that you will get when you invest in quality HVAC services.

    To start with, installing heating systems in the house helps keep the house warm during the colder months. There is nothing that is more disorienting than going to bed in a cold house on a winter night. The most uncomfortable part is taking a bath with cold water in the colder months. Water and house heating systems help you keep warm and avoid infections that might result from the cold weather.

    Secondly, AC is very beneficial when it comes to cooling down the temperatures during the summer months. Temperatures get quite high especially outside during summer. It feels good to step in the house and get refreshing cooler temperatures. A good air conditioning system in the house regulates the temperatures to what is suitable for all seasons.

    • I set mine on top of a old sewing machine cabinet and that seemed to increase the efficiency. Just make sure that it’s secure if it’s on a counter or piece of furniture as you wouldn’t want it to topple over and land on someone’s head!

      • Oh nice! cuz I actually put mine on top of a decorative metal framed hamper about 3 ft tall (empty, obviously).
        With an oscillating fan nearby so It’s going to have tons of ventilation the whole way around 🙂 oh I’m also going to cover the vent tubing in bubble wrap. hoping to really increase the efficiency Stay cool people!

  • We have 2 portable AC units on the main floor of the house. We have a wood stove on the lower level. Is it necessary to keep a window cracked open for ventilation purposes throughout the house ?

  • my portable just recently stopped cooling my bedroom,the air blowing out is not very cold.Anyone know what might be the problem

  • My portable air conditioner works very good I just got mine my AC broke been 6 days without air was the hardest thing for me and my daughter because we both have asthma if you put it on 68 it will I thank God for the portable air conditioner because it’s saved me and my daughter life I live in apartment and it takes forever for the maintenance people that fix my air conditioner i almost lost my daughter because of this not having air in my apartment i thank god that she ok and will celebrate happy birthday on Monday she will be 18 years old 😀😍😀😍😀😍

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