what is swamp cooler

What Is Swamp Cooler?

The title of this article probably has given you an idea. Swamp coolers (also known as evaporative coolers) are today’s topic. They are commonly seen nowadays in households, and their demand is increasing in the hotter parts of the world.

Humidity is necessary to keep human beings healthy, and too much dryness in the air is bad. This is evident in how useful and popular Swamp Coolers have become.

Air cooling is a feature present in households prevalent today. With the effects of climate change and global warming causing temperatures to be higher than usual, can you really blame it?

Air conditioners, coolers, and temperature control systems are increasing in sales figures regularly. Research continues to make it easier for those who have to suffer from the excruciating heat.

Among these systems, one has been rising in popularity with some of the others. Such a process happens naturally in more humid areas, and it is called Evaporative Cooling. Moisture is created in the air through evaporation, and the humidity causes the surroundings to cool. This is the principle followed by Swamp Coolers.

The Function of a Swamp Cooler

A Swamp Cooler functions by using moisture found in the air to cool the surrounding. Swamp Cooler is also known as an Evaporative Cooler. It takes warm air from the outside and passes it through cooling pads to make it cooler. Then this cold air is passed inside a target by a blower through a vent. Let us look at a Swamp Cooler’s interior parts to get a better understanding.

Inside of a Swamp Cooler

A Swamp Cooler functions rather conveniently for a system that deals with something as seemingly complicated as air-cooling. The most important parts of the Swamp Cooler are the Evaporative Pads, Blower, Water Supply Valve, Float, and Pump. We will now be going through each separate component in detail.


At the bottom of the Swamp Cooler lies the float, where the water level is what decides the next step. If the water happens to reach a significant level, the float rises to the surface level of the water and causes the water supply valve to shut itself off. The cooler will be unable to work correctly, malfunction, or overflow if the float becomes damaged or is harmed.


The blower’s function is simple and, as the name suggests, blowing air. A motor is attached to the blower that starts turning when the cooling system decides it should do so. Cool air is pushed into a passage and shot out of a barrel, thus causing air to cool.

The cold air falls downwards, and the warm air rises. This way, the upper regions of the room may not be as cold as the downwards. Still, if this is done repeatedly over time, the coldness is spread out evenly, and the Swamp Cooler achieves its goal.

Water Supply Valve

The function of the water supply valve is to bring the water to the bottom of the Swamp Cooler. There is a copper tube that happens to connect the water supply valve to the cooler. The valve is located inside the home, where a water heater usually joins up with the rest of the plumbing.


The purpose of the pump is to make water flow through the evaporative pads, keeping them cool and stopping them from drying up. It does this by continuously pushing water through to the distribution lines. It is usually located at the very bottom of the unit.

The pump is crucial to the whole system as without it. Because without it, not only would the Swamp Cooler stop serving its purpose, but it would also cause the evaporative pads to dry up and possibly become unusable.

Evaporative Pads

The evaporative pads may be the most critical part of the entire Swamp Cooler system. But it is also the last element of the system before the moisture is let out into the air. The evaporative pads must be kept damp and cool at all times to ensure that the Swamp Cooler system is functioning correctly. They line the inside of the Swamp Cooler and are responsible for the clean and cool air that results from a Swamp Cooler.

Now that we have a basic understanding of the parts inside a Swamp Cooler, let us proceed further. We will now try to understand how the Swamp Cooler can use these parts to cool the air around it successfully.

How Does a Swamp Cooler Work?

First, the water is brought up by the water supply valve after the dial of the Swamp Cooler has been set to its active position. This is done continuously until the float is at the surface level of the water. After the float has reached a certain desired level, it is made to turn the water supply valve off.

Next, the evaporative pads are drenched in water by the pump. As mentioned before, this is highly crucial as the pads are mainly responsible for the cold air that is released by the Swamp Cooler.

After this, the blower motor pulls warm air into the Swamp Cooler, making them go through the evaporative pads. The warm air passes through these, and their temperature is readily reduced and cleaned off a limited amount of contamination. This creates moisture, cooling the air around the device. This is what is known as Evaporative Cooling.

Then, the blower spreads this moisture with force through a vent, causing the warm air to rise upwards and away, making the surface temperature cooler and more comfortable.

This brief but detailed description of how the ‘magic’ of a cooling system, particularly the Swamp Cooler, is made possible. It is not rocket science. It’s just warm air being turned into cold air with the help of moisture created from evporating water. If there are instances where you have thought that Swamp Coolers are complicated in their internal functioning, we hope you know better now!


There are many different cooling systems today, and Swamp Coolers or Evaporative Coolers are just one of many. It is widely referred to in other terms, such as Evaporative Cooler, due to the process through which it causes the cooling. Systems like these vary drastically in how they work and also in their outputs.

Check out my selection of the best evaporative coolers for you and your family right now! They are commonly available on global e-commerce sites and can be purchased easily.

We hope you have gotten a decent understanding of Swamp Coolers by now. Who would have thought to use water to turn warm air into cool air in an automated process? So, get a swamp cooler and make your habitat more comfortable. We thank you for your time and hope you have a ‘cool’ day!

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