Portable air conditioners offer a convenient and flexible option for cooling rooms in homes or apartments. These devices can be moved from room to room, and they provide an excellent solution for renters or those who do not want to install a fixed AC unit. Portable air conditioners come in two types: vented and ventless. In this article, we will discuss the differences between these two types and help you determine which type of portable air conditioner is best for you.

What is a Portable Air Conditioner?

Portable air conditioners are a flexible option for cooling a room, allowing for easy movement to other spaces. Two types of portable ACs are vented and ventless. Vented portable air conditioners use a hose to vent out the hot air and moisture produced by the cooling process, while ventless units work by using evaporative cooling to cool the air. Evaporative air coolers use water instead of refrigerant to cool hot air. They do this by pumping water onto pads where hot air passes, causing the heat to transfer from the air into the water. Ventless portable ACs are better known as evaporative air coolers or swamp coolers. While vented units are ideal for hot and humid climates, ventless evaporative coolers require less installation and are more energy-efficient. However, they require more maintenance, such as topping off the water tank and replacing the cooling pads.

Types of Portable Air Conditioners

There are two main types of portable air conditioners: vented and ventless. Let’s take a closer look at each one.

Vented Portable AC

Portable air conditioners come in two main types: vented and ventless. Vented portable air conditioners are connected to a window kit and exhaust hot air and moisture outside using an exhaust hose. These units are ideal for hot and humid climates, as they can cool down a room more efficiently. However, vented portable air conditioners require more installation parts and space and are more energy-intensive compared to ventless units.

When comparing portable air conditioners to standard air conditioners, it’s important to consider the unit’s SEER rating and whether it has variable speed settings. A higher SEER rating indicates a more energy-efficient unit, while variable speed settings allow the unit to adjust its cooling output based on the room’s temperature and humidity.

Ventless Portable Air Conditioner

A ventless portable air conditioner, also known as a windowless or hoseless portable AC, is an easy-to-install solution for cooling small spaces without a window vent kit. This type of unit does not require an exhaust hose or vent to expel hot air and moisture, making it ideal for apartments, condos, and RVs. Ventless AC units work by using an evaporative process to cool down the air, which involves pumping water onto pads where the hot air passes, transferring heat from the air and into the water. These units have a lower SEER rating and are not suitable for humid climates. Additionally, they require more frequent water collection and maintenance, such as topping off the water tank and replacing the cooling pads. Overall, a ventless portable AC can be a cost-effective and convenient cooling option for those who do not have access to a standard window AC kit.

Vented vs. Ventless Portable Air Conditioners: Which is Better?

When it comes to choosing a portable air conditioner, deciding between a vented and a ventless unit is important. The decision is largely based on your location and personal preferences. For those living in hot and humid climates, a vented portable air conditioner is likely the better option. These units are effective at cooling down a room but require a nearby window and enough space for the hose to run. They can also be more expensive to operate due to their energy consumption.

However, if you live in a dry climate, a ventless portable air conditioner may be the best choice. These unvented portable air conditioners use an evaporative process to cool down the air and do not require a hose or vent. They are also more energy-efficient, which can save you money on your energy bill. However, they do require more maintenance, such as topping off the water tank and replacing the cooling pads. They also may not cool down the air as much as vented units and are not effective in humid climates.

One of the advantages of a ventless portable air conditioner is the ease of installation. They do not require a portable ac window kit or any complex installation procedures. Instead, you simply plug them in and turn them on. On the other hand, vented units require more effort and planning, including finding the right location near a window and installing the window kit properly.

Another consideration is the heat pump. Ventless portable air conditioners do not have a heat pump, which means they are not effective in heating the air in the room. However, some vented units have a heat pump that can both heat and cool the air, making them more versatile and convenient.


In conclusion, choosing between a vented and ventless portable air conditioner depends on your location and preferences. While vented units are more effective in hot and humid climates, ventless units are easier to install and more energy-efficient. It’s important to consider all the factors, including the need for a portable AC window kit and heat pump, before making a decision.

Need help choosing the perfect air conditioning unit? Get in touch with National Air Warehouse now at 1-888-292-0874 for expert guidance and assistance. Our team is dedicated to offering top-notch support, whether or not you buy from us. Don’t hesitate to contact us today to benefit from our wealth of knowledge and experience.

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