How to Vent a Window Air Conditioner Without a Window?

A window air conditioning system is an air conditioning unit that operates by mounting in the window since windows are the best for venting a window air conditioner. Venting a window air conditioning system involves giving the window air conditioner access to the outside air through the window. However, in this case, we are venting the window air conditioner without a window, and hence there are some other ways like using doors, ceilings, walls, and some existing vents in the house.

Therefore, follow the ways in this article on fixing the windows air conditioner through such methods. Nevertheless, before performing any action on the window air conditioner, always follow the instructions from the manufacturer about that particular air conditioner to prevent damage. Window air conditioners are advisable to use, as they are cheap to use and install, have fewer requirements, and consume less energy.

Ways of venting a window air conditioner without a window

vent a window air conditioner

A window provides a good source of venting for an air conditioning system. However, in this case, you want to use an air conditioner without a window. Instead of worrying about how to buy a window kit to use, here are ways you can use to vent a window air conditioner without a window.

Using the ceiling. There are two methods of venting a window air conditioner using the ceiling.

Method 1: Pulling ceiling tile

Pulling the ceiling in this method involves gently removing the ceiling tile physically and making a hole through it to create space for fixing the vent. Take much care while cutting the hole so that the vent fits tightly and that there are no leakages in the ceiling, keeping in mind that the hole must be soft enough to avoid damaging the air conditioner.

Method 2: Purchasing ceiling vent kits

Purchasing ceiling vent kits

In this method, you must purchase the ceiling vent kits to fix the air conditioner. The ceiling vent kits are available in the air conditioner manufacturers’ shop since they know the same kits for specific air conditioners. After purchasing the ceiling vent kits, install them according to the manufacturer’s manual as you can fix it by yourself.

  • Using the walls in the house

Using walls in the house to vent a window air conditioner is the best way to provide a steady position for the air conditioner. Before installing air conditioners in the house, create a hole in the wall physically in a position where you always place the air conditioner. Secure this location for the air conditioner to prevent damages from external agents. Consider using frames to cover the external part of the air conditioner. Remember when creating these holes minimize chances of leaving gaps that will leak air into the house.

  • Using the door

As long as the air conditioner is in a position that can penetrate air, it works. Therefore, placing it in the door is a good solution since you can output the air conditioner through the door. Purchasing vent kits for doors is best for fixing the vents so that the door usually opens. Using this way to vent a window air conditioner is disadvantageous as it limits the length between the air conditioner and the door. Sliding doors are best for use while venting a window air conditioner through the door.

  • Using an existing vent

During the construction, there are always vents to help the air in and outside the house. In most cases, it is advisable to use drier vents since they act as windows. Place the air conditioner in the existing vent to exchange the air in the house.

  • Using the chimney

Using the chimney to vent is a rare way to vent a window air conditioner, as it requires many activities. First, the house must have an unused chimney to work. Then the installation process needs a professional since it is somehow tricky.

Factors to consider when choosing a window air conditioner

Factors to consider when choosing a window air conditioner

1. The size of the window air conditioning system

Consider buying a window air conditioning system that is almost the same size as your window. Larger windows support a larger window air conditioner, as smaller windows support a smaller window air conditioner.

2. Level of cooling

The cooling energy level is the BTUs since they are the measurements for the cooling capacity. When choosing a window air conditioner, stick to a system that has the BTU level corresponding to the room’s size.

3. Ability to maintain

Choose a window air conditioner that is easy to maintain and has fewer requirements when doing repairs. Windows air conditioners need regular maintenance to check if the air filters are clean since it is the most sensitive part of the air conditioning system.

4. Rate of energy consumption

Windows air conditioners that consume less electrical energy are the best for use to reduce air conditioning bills. Window air conditioners are cheap and can function for a longer period.

You might be interested to read also our another article about: How to Clear a Clogged Air Conditioner Drain Line

FAQs About Vent a Window Air Conditioner Without a Window :

  • Do portable window air conditioners exist?

Of course, yes, most air conditioners that need venting without windows are portable air conditioning systems. Portable air conditioners are air conditioners that move from one room to another quickly with the temporal installation. Portable air conditioners mainly operate in smaller rooms since they need venting through the window.

  • What are the maintenance practices for venting a window air conditioner without windows?

Maintenance practices for windows air conditioners are the same as the practices for maintaining an air conditioner. The activities include regular checking of air filters, checking for leaking gaps in the air conditioner, cleaning the air conditioner system since dust and some debris accumulates in the inner parts of the air conditioner, and finally calling a professional to help you check some technical parts and replace them where necessary.


The article above shows the ways of venting a window air conditioner without windows. Since windows are the best parts to use when venting windows air conditioners, you should not stick to that point only because the articles describe the other ways to vent the air conditioner. These ways help reduce some costs you may encounter, like purchasing a window vent kit to fix your window air conditioner. Follow the methods above to solve that problem.

Finally, when venting a window, the air conditioner always consults a technician to help fix technical issues like when using chimneys to vent. Moreover, remember to use the manufacturer’s manual to guide you on handling the window air conditioner.

To more about Vent a Window Air Conditioner Without a Window, You should watch this video below;

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