Do Portable Air Conditioners Need to Be Vented?

Commercial and industrial portable air conditioners are used in a variety of applications, including gyms, tents, warehouses, offices, and temporary job sites. For these convenient units to be used effectively, they must be able to exhaust hot air. Do portable air conditioners need to be vented? The answer is yes—without venting, you simply won't be able to cool the room.

How Portable Air Conditioners Work

Portable air conditioners work by drawing the hot air into the unit. The refrigerant cools the air, which is then recirculated throughout the room. Excess warm air is expelled outside through the window, door, wall, or ceiling. Without this ventilation process, that warm air will stay in the room and overpower the cool air provided by the AC unit.

Importance of Venting Portable Air Conditioners

Venting is what makes a portable air conditioner so effective. It's an essential step for portable cooling in any commercial or industrial space:

• Allows for effective cooling
• Prevents overheating of the AC unit
• Ensures efficient machine operation
• Saves energy and the associated utility costs
• Keeps employees, visitors, and customers comfortable

Consequences of Not Venting a Portable AC

Without venting, the portable AC simply can't do its job well. Not only will the room stay warmer and more humid, you also risk potential damage to the unit, because it's being forced to work harder and potentially overheat. You also increase your energy consumption, which can be detrimental to your eco-friendly initiatives and your bottom line.

Portable AC Venting Options

Ceiling venting is the simplest, most common way to vent a portable air conditioner. Using flexible duct and a drop ceiling tile, warm air is routed into the plenum above the drop ceiling..

If a drop ceiling isn't available, it's possible to duct condenser air to a door or another opening.

Through-the-wall venting is another option, though it may be better suited to applications where your portable unit is a permanent cooling solution. You can cut a hole in your wall to fit the ventilation hose and seal it.

Alternative Venting Solutions

• Dual-hose portable air conditioners: These are more effective than single-hose units. While the first hose is expelling hot air from the room, the second hose is used to draw air in from the outside to cool the unit's components, so it produces less heat as it works.
• Ventless portable air conditioners: If there are no venting options available, you may want to consider an evaporative cooler. These units work best in hot, dry climates, and they work by evaporating water into the air to cool it.
• Portable AC units in spaces with limited venting options: Take a closer look at the water-cooled portable AC units that provide effective cooling without the need for ventilation.

Choosing the Right Portable AC with Venting Needs in Mind

Portable air conditioners come in a variety of sizes and capacities, so you can find one that will meet your specific cooling needs. This is what to consider when making your choice:

• Venting options and flexibility: Do you have a drop ceiling available, or will you need to go through the wall or ceiling? Does the unit give you venting options?
• Efficiency and capacity: How big is your space? How many people are present? What's the temperature change you need to make?
• Ease of installation and maintenance: Many of today's commercial and industrial portable AC units are user-friendly and easy to maintain. Still, you'll want to consider the unique features of your space and who is doing the installation.

Shop Commercial Portable AC Units at NorthStock

At NorthStock, we carry a wide range of portable air conditioners and evaporative coolers from the industry's leading manufacturers. With competitive pricing and fast, free shipping to the lower 48 states, we make it as easy as possible for you to get the HVAC products you need when you need them. Contact us today to learn more or place an order.

Portable AC Frequently Asked Questions

Can a portable air conditioner be used without venting?

No. Portable ACs should not be used without venting—unless you choose a water-cooled portable unit.

What are the best venting options for industrial settings?

A drop ceiling or door is the simplest way to vent your portable AC.

Are there portable AC units that don't require venting?

Yes. Water-cooled portable units do not require venting.

What happens if the portable AC is not properly vented?

The unit will not be able to cool the room effectively. Without proper venting, you will increase your energy costs and consumption and risk damage to the unit.