Do you have to add water to a window air conditioner? Is it necessary? Today we will learn about that. 

Window aircon is an excellent choice for smaller rooms. People love it because it just needs a small place in your home to operate. Besides, it comes with excellent cooling ability. It works by circulating the air through its unit and cooling down the room and removing the extra air through the external component.

Especially in older designed homes where new types of aircon can not be installed, a window aircon is the best choice for this situation. 

However, if you have to add extra water or not to a window, the aircon is still not clear. Read the whole article if you want to know the answer. 

Do You Have To Add Water To A Window Air Conditioner

Do You Have To Add Water To A Window Air Conditioner?

You do not need to add water to a window air cooling system. Instead, it can build water, and this is a part of how its cooling process is being done.

We all know how window air cooling systems work. It basically works by circulating the air through its component. Here some tiny amount of water is used to cool down the air, and the leftovers are supplied outside of its component. 

You don’t need to add extra water to any window air cooling system because it can build water inside, which later helps the system for its cooling process. 

On the other hand, if you want to know if the water-based air cooling systems are good or bad, then here is the answer. Water-based cooling systems always use water to cool down the warm air and constantly supply cool air outside, unlike the standard aircon. That’sThat’s why you can say water-based air cooling systems are pretty good. 

After all, their heat transfer properties are not harmful because they do not release warm air, which is terrible for the environment. 

Do You Need To Add Water To Your Ac Unit?

In general, what is usually seen in every household is an air cooling system. These air conditioners don’t need water to work correctly. Instead, when it detects warm temperature in the room, it consumes it and supplies it using evaporator coils and cools it down by using a refrigerant. 

Though some air cooling systems use water to work, they are very costly and problematic to use. Again they are not suitable for average houses. 

What Kind Of Air Conditioner Uses Water?

There are some kinds of air cooling systems that use water, unlike those that use air to work. In CES 2020, one of the top innovators created a new type of air cooling system which uses water instead of air. That is HomeCool from OxiCool. 

How Do Water-Based Ac Units Work? 

Do you know how water-based AC components work? Let’sLet’s learn that today. 

Basically, water-based air cooling components are connected with a hose to a faucet which distributes as a water supply. Sometimes this faucet can be seen 75 to 100 feet long. Water basically goes from the condenser coils to take out the heat from the refrigerant, which can be found in the coils. 

The best thing about a portable water-based air cooling system is unlike any other air cooling system, and it removes a very low amount of heat which is very efficient for the environment. They do not even need the exhaust ducting and can be helpful for small areas. 

Read more: Can A Window Air Conditioner Be Installed In A Wall Sleeve?

Can You Run An Air Conditioner Without Water?

If your air cooling system is not water-based, you efficiently run it without adding water. This is because only water-based air conditioners need extra added water to cool down the hot air; otherwise, usually, air cooling systems do not need extra added water. However, some of them can build water inside and use it when it is needed, and from some, you have to drain extra water every eight hours or so. 

So be careful if your portable aircon needs to drain water because it can create clog inside. Not just that, if it can somehow trap the cool air inside then, it can quickly freeze the coils inside. 

How Do You Add Water To Clean Your Air Conditioner?

Cleaning an air cooling system is very easy. You can use a spray bottle or your old gardener hose. The best thing is you do not need to be concerned about the water volume. Instead, turn it to the highest and hold it from the top of the components to clean it properly. 

Do All Window Air Conditioners Have To Drain?

Every new air cooling system produces condensation, which then falls down into the pan on the base of the component. It does not have any drain holes or plugs which can take the water out of the system. 

But if you have an older-styled window air cooling system, then you have to drain that water. There is a pan attached in the base of those older window aircon from where you can drain water. 

The new window air conditioners build water by themselves for its cooling process and then use it as much as it needs and removes the extra through the outside of the component.

How Much Water Does An Air Conditioner Use?

If you live somewhere with high humidity in the air or if it is summer, then it is normal for your air cooling system to drain water outside your home through the outside unit from about 5 to 20 gallons of water each day. 

How Can You Get Water Out Of Your Window Air Conditioner?

If your window air cooling system is clogged and now if you want to get those water out of your window aircon, then I have a solution for you. 

You can use a thin wire or a baby bottle nipple cleaner and insert it into the hole and pull it back and forth. Sometimes it is enough to remove the clog. Now after doing that, detach the component from the window, and if it is needed, you can also take off the outer case and then install it in a clean place. 

How Often Should You Drain Your Window Air Conditioner?

The older window air cooling systems needed to remove water when it was complete. Nowadays, you will need to drain water only if it is a portable aircon system. If you use a portable air cooling system, then always remember to drain the water every eight hours if you live in a high humid place. But if you live in a dry area, then you won’t need to drain water as often as this. 

Do Water-Cooled Air Conditioners Work?

Well, if you are wondering if a water-based air cooling system can work the same as an air-cooled air cooling system, then I have some bad news for you. Air-cooled air cooling systems work better than water-based air cooling systems. 

Everything is more accessible in the case of air-cooled air cooling systems. From installation to maintenance, everything is more straightforward. But here is the catch, even though the air-based air cooling system is better than the water-based one but water-based air cooling system has better cooling ability than the air-based air cooling system. So it can not beat this in that factor. 

Which Is Better Air-Cooled Or Water-Cooled Chillers?

Here are the pros and cons between the air-cooled and water-cooled chillers- 

  1. Water-based aircon has better cooling ability than air-based aircon.
  1. Air-based air conditioners do not need a cooling tower, but water-based air conditioners need a cooling tower for their maintenance. So you can say it is more challenging to maintain a water-based aircon than an air-based one.
  1. Air-based aircon is easier to use even at the coolest temperature because it doesn’t need a cooling tower. So you can locate an air-based aircon anywhere, unlike the water-based one.
  1. Water-based aircon is much more energy-efficient than air-based air conditioners because of its cooling efficiency.
  1. Air-based air conditioners are easy to deliver and even install because they mainly come in a “packed system.” But water-based one’s are a bit more complicated than the air-based ones in this case.
  1. An air-based aircon can run for 15 to 20 years. On the other hand, water-based air conditioners can run for 20 to 30 years. This time water-cooled chillers win the show.

So now you decide which one you think is better, the air-cooled one or the water-based one.

where is the condenser coil located on a central air conditioner

What Are Their Differences? 

There is a difference between an air-based air cooling system and a water-based air cooling system. 

Air-based ones usually have condensers that utilize the room’s air to cool down hot refrigerants. 

On the other hand, water-based condensers are generally tube-in-tube, tube-in-shell or plate-type warm air traders that cool down water by cooling towers or by using other water sources to cool down the refrigerant. 


I guess by now you have got your answer: do you have to add water to a window air conditioner or not. 

I hope this article has helped you to get your answer. So from now on, don’t worry about draining water from your window air conditioner unless it is an older version.

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