How to Install Portable Air Conditioner? [Newest Guide]

AUG 19, 2025

1461 views , 5 mins read

Portable air conditioners are a convenient solution for keeping your home cool without the hassle of permanent installation. Unlike traditional units, they are easy to move, simple to set up, and perfect for renters or anyone needing flexible cooling.

In this guide, we’ll cover the basics of how portable air conditioners work and tell you how to install a portable air conditioner step by step. Whether you’re new to using one or just want to make sure you’re setting it up correctly, this article will help you understand and get the most out of your portable AC.

In this article

1. How Do Portable Air Conditioners Work? 2. How Do You Install a Portable Air Conditioner? 3. FAQs about Portable Air Conditioner

How Do Portable Air Conditioners Work?

Portable air conditioners work by pulling in warm, humid air from the room, cooling it down, and then releasing the cooled air back into the space. At the same time, they push the unwanted heat outside through an exhaust hose that connects to a window.

Here’s a breakdown of the process:

Air Intake – The unit draws in warm air from the room.
Cooling & Dehumidifying – The air passes over cold coils, where it’s cooled and stripped of excess moisture.
Air Output – The cooler, drier air is blown back into the room for comfort.
Heat Exhaust – The heat removed from the air is vented outside through the duct.
Moisture Management – Water from the dehumidification process is either collected in a tank, drained through a hose, or reused to improve efficiency.

This dual function—cooling and dehumidifying—makes portable ACs especially useful in hot, humid climates, though their efficiency can be limited compared to fixed systems.

How Do You Install a Portable Air Conditioner?

Installing a portable air conditioner only takes a few steps, but doing it correctly will ensure the best cooling performance. Here’s how to set it up:

Step 1. Choose the Right Spot

Place your unit near a window and a power outlet. Make sure there’s enough space around it for airflow, and check that your window can fit the included venting kit.

Step 2. Connect the Exhaust Hose

Attach the hose securely to the back of the unit, following the manufacturer’s instructions. This hose will carry the hot air out of the room.

Step 3. Install the Window Kit

Insert the adjustable window panel into your window frame, then connect the other end of the hose to the opening in the panel. Seal any gaps to prevent cool air from leaking out.

Step 4. Power On and Test

Plug in the unit, turn it on, and make sure cool air is flowing into the room while warm air is vented outside. If everything works properly, your portable AC is ready to keep your space comfortable.

Installation Tips

Try to keep the exhaust hose as straight as possible without any twists or bends, since restricted airflow will reduce the unit’s efficiency.
A shorter hose also helps the air conditioner run more effectively. In addition, some manufacturers advise using alkaline batteries, rather than rechargeable ones, in the remote control.

Many portable air conditioners on the market can be quite noisy. If you’re looking for a quieter and more energy-efficient option, check out our article: Quiet portable air conditioners in Australia >>

Newentor Quietest Portable Air Conditioner

Priced under 500 AUD, the Newentor portable air conditioner delivers a reliable and flexible cooling solution. Designed with adjustable modes to suit different room sizes, it helps cut down on energy bills while still offering strong performance.

Equipped with a dual motor system and a low-vibration compressor, it operates quietly at just 54 dB. The 6mm tailored insulation further minimizes noise, making it among the quietest models you can find. With smooth-rolling wheels and a handy remote control, it’s easy to move around, making it ideal for keeping your home or office cool and comfortable without disturbing your peace.

Features

Powerful Cooling Performance: Efficient cooling with 9,000, 12,000, and 14,000 BTU options, suitable for various room sizes to quickly lower temperatures.
Energy-Efficient & Eco-Friendly: Utilizes energy-saving technology to reduce electricity costs and offers excellent environmental performance.
Easy Portability: Built-in wheels allow for effortless movement between different rooms, providing convenience and flexibility.
Smart Operation: Remote control and multiple cooling modes make operation simple and adjustments flexible.
Ultra-Quiet Design: Low-noise operation ensures a comfortable sleeping environment, perfect for bedrooms or offices.

FAQs about Portable Air Conditioner

If you’re considering a portable AC, you might still have a few questions about how they work and how to use them properly. Here are some of the most common ones:

Does portable air conditioner need vented?

Yes, almost all portable air conditioners need to be vented. They work by pulling heat and moisture from the room, so the hot air must be expelled outside through an exhaust hose, usually connected to a window. Without venting, the unit will only circulate warm air and won’t effectively cool the space.

What not to do with a portable air conditioner?

Don’t run the unit without venting the hot air outside.
Don’t place it too close to walls or furniture, as airflow will be blocked.
Don’t use a long or twisted exhaust hose, since this reduces efficiency.
Don’t ignore water drainage—empty or maintain the tank if needed.
Don’t leave windows or doors wide open while running it, as this lets heat back in.

What is the 3 minute rule for air conditioners?

The 3-minute rule means you should wait at least three minutes after turning off your air conditioner before switching it back on. This pause allows the compressor’s internal pressure to stabilize, preventing strain or damage to the system and ensuring it runs smoothly when restarted.

Bottom Lines

Portable air conditioners are a cost-effective way to stay cool without complex installation. Learning how to install a portable air conditioner properly ensures maximum efficiency and comfort. If you want the best balance of price and performance, the Newentor portable air conditioner is an excellent pick—quiet, energy-saving, and under 500 AUD, it delivers reliable cooling that won’t break the bank.

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