As sliding doors usually lead to the outdoors, they are very similar to windows and therefore make excellent options for ventilation. They are easier to seal than swinging doors as their opening is easy to cover, and so kits to set this up are readily available. Ventilation Through A Swinging Door Or Casement Windows The reason for caution against this technique is because most dryer vents tend to be smaller in diameter in comparison to portable AC unit exhaust hoses. However, if you do it on your own, it is likely to cause damages to your property or unintentionally heat up other areas of the house. Therefore, it is better to hire an experienced HVAC technician to have this task done for you. 5. Vent through the fireplace

From all we've mentioned above, you can see that ventless AC units are perfect for rooms of any size. With these devices, you can enjoy cool temperatures during summer and sufficient humidity in winter. Of all the products mentioned in this review, we consider the evaCHILL Personal Air Cooler the best choice, especially if you want to cool your personal space. FAQ Are ventless air conditioners any good? Fans use just a fraction of the energy that air conditioners guzzle, as they only have to rotate lightweight blades. But while they might help your room feel less muggy, they only move the air around rather than actually cooling it. It’s an evaporative cooler. Evaporative coolers are, in the HVAC community, known as ‘make-believe air conditioners’ or ‘fake air conditioners’. They create airflow and do work as a glorified fan; however, they don’t actually decrease the temperature in the room. Every single one of them produces the same amount of cooling effect: Exactly 0 BTU. If your house has a chimney for decorative purposes, then it is also possible to vent the portable air conditioner via your fireplace. Just like other options, keep in mind to use the custom-made Plexiglas or the provided window adapter kit to cover the gaps between the fireplace opening and the exhaust hose.Ventless evaporative coolers can be very good, or they can be very bad. The key to how to cool yourself without using any vents is the powerful airflow these coolers create. High Airflow Most ventless air conditioners are generally noisy, which can be a bummer. The good thing is that most manufacturers try to strike a balance between the level of noise and the airflow. It is important to note that ventless air coolers can create over 1000 CFR airflow, generating as much as 70+ dB of sound. From the six products we have provided above, you'll find some that are quiet and others that whisper quiet. It all depends on what you want. Reliability The fact that portable air conditioners can work without a window makes them very versatile machines. All portable air conditioners need to be vented properly to remove excess hot air from your room. If you don’t do this, the AC will not be able to effectively cool down the area. Remember that opening the windows on either side of your home will allow air to flow through. If you have a conservatory, keep the door between it and your home closed, as a lot of heat might leak from the conservatory into other rooms. How we test air conditioners

Hessaire, on the other hand, is a good example of a smaller brand that specifically vent out and designed the best portable air conditioner without a hose. That’s what was missing on the market and Hessaire fulfilled that needs.

1. Vent through a window

Obviously, the relatively low BTU rating puts it out of contention for larger rooms, let alone open-plan living spaces, but for the average UK living room or bedroom it should be fine. You can control it using the top-mounted touch controls or bundled remote, and there’s a 24-hour stop/start timer to cool your bedroom before you go to sleep. The only problem is that most users describe it as “pretty noisy”. You might not want to leave this one running overnight. There are a few useful things you can do to cool down in hot weather without having to invest in new equipment. The best-rated ductless air conditioners on the market are easy to install and offer powerful, energy-efficient operation that saves you money over time. Many are drawn to ventless air conditioners because they are a more eco-friendly and secure solution to cooling a single room or space. Is there a ventless portable air conditioner? As you can see, venting is a very important part of staying cool and maintaining an efficient air conditioner.