This is What You Do With Your Evaporative Cooler's CFM Rating
Evaporative coolers are one of the most convenient cooling options.
In addition to being convenient, evaporative coolers are quite economical to operate as well. These coolers consume less energy as they have fewer electronic components. In addition, they are easy to maintain.
A typical evaporative cooler has a handful of components out of which only a few actually need maintenance.
- The evaporative cooler is equipped with a fan and a fan motor.
- In addition, there is a water pump which sprays water.
- There are also cooling pads which need to be removed from time to time for cleaning.
On the whole, evaporative coolers hardly ever require maintenance. When in the market for an evaporative cooler, you should research the performance rating of an evaporative cooler. Doing this will help you in many ways. If you are aware of how to assess the performance of a cooler, you can purchase the best unit for the price.
There are quite a few things you should look for in an evaporative cooler.
- The evaporative cooler should be able to cool the premises effectively. This will only be possible if the cooler is rated to cool the room.
- Excessively large coolers will consume more energy.
- On the other hand, coolers that are too small will work continuously and malfunction after a short while.
- The best way to purchase the right evaporative cooler for your home is to refer to the CFM rating.
Each evaporative cooler has a CFM rating which will tell you if that particular size or model will work for you. This is why you should have a good understanding about CFM and how it can be calculated. The CFM rating is not the only thing that you should be considering but is certainly among the most important factors.
What Is CFM Rating?
CFM stands for Cubic Feet per Minute. It is a volumetric unit which is commonly used to rate items that blow air.
- CFM defines the volume of air a fan can blow in a minute.
- The higher the CFM rating, the more air a particular fan or blower will be able to blow per minute.
- When it comes to evaporative coolers, the CFM rating has immense importance.
This is because the greater CFM rating a fan has, the larger the area it will cool. However, the CFM rating is not all that determines the performance of an evaporative cooler.
- The cubic feet per minute rating only tells you how much air a cooler can push out.
- A cooler with a higher rating will be able to cool an area faster.
- However, this does not necessarily mean that the cooler will be able to cool a large area.
There are many factors that come into play when it comes to cooling large spaces.
One such factor is the size of the evaporative cooler fan. If the fan is small but has a high CFM rating, the air released from the cooler will go quite far, but only toward a single, more focused direction.
On the other hand, a large fan can spread air easily.
It covers a larger area which proves to be more effective. A large fan in an evaporative cooler combined with a high CFM rating is a perfect combination. Not only will it blow a high volume of air, it will cover a significant area and the air will spread around.
NOTE: Most people depend on the CFM rating alone. While it is important to check the CFM rating, it is not all that comes into play when an evaporative cooler is working.
How Does the CFM Rating Affect an Evaporative Cooler's Functionality?
These coolers come in different grades. Each of the grades has a certain rating associated with it. This rating signifies the area that the particular swamp cooler is rated to cover.
The most common unit that defines the performance of an evaporative cooler is the CFM rating.
This unit signifies the amount of air a swamp cooler can push out per minute.
- If you have a large home, you should get a cooler rated at a higher CFM.
- A lower CFM rating will suffice for a smaller home.
- Do keep in mind that there are other factors to consider when determining a cooler's performance.
The first thing you should look at is the size of the fan.
The larger the fan, the better the cooler will be at cooling a larger area. In addition to the fan, you should check the reservoir.
A larger reservoir will ensure you will have uninterrupted cooling for a longer period of time. Certain evaporative coolers have the option to attach a hose directly in place of the reservoir. The hose can be connected to any water outlet.
This allows you to enjoy cooling for as long as you wish and you won't have to get up and refill the reservoir time after time.
Before you go ahead and purchase an evaporative cooler, there are a few things that you need to assess.
- Firstly, you will need to determine what type of evaporative cooler you will need for your home. You have to choose between a cooler with a reservoir or an uninterrupted supply. You can opt for one that accommodates both.
- Secondly, you need to see what the CFM rating of an evaporative cooler should be in order to work perfectly at your premises. For this, you will need to take measurements of your home or workplace and calculate the CFM rating you require accordingly.
It is important that you learn how to calculate the Cubic Feet per Minute rating you require for your home.
Fortunately, calculating the CFM is not as difficult as it is made out to be. All you need to do is take a few measurements and insert the values into a formula. Once you get the CFM, you can get an evaporative cooler based to it.
The first thing you need to do is measure the area you want to cool. This can be done easily.
- Firstly, you need to measure the height of your room. To make this process easy, you should consider getting a stiff tape measure.
- Once you have the height of the room, go on to measure its length and width. Now, in order to acquire the CFM, you will need the size of the area or room in cubic feet.
- For this you will need to use the formula: Length (In ft.) x Height (In ft.) x Width (In ft.) = Cubic Feet. If the length of your room is 15ft, the height 8ft and the width 10ft, you have to multiply all three values. Therefore, once you multiply 15 x 8 x 10, you get 1200 cubic feet.
After calculating the measurement of your room in cubic feet, you will need to calculate the CFM required for the room.
- Firstly, you will need to decide how many times in an hour you would want the air in your room completely changed. This affects the CFM rating of your evaporative cooler.
- For instance, if you want the air changed 3 times, you will need to multiply this with the cubic feet measurement of the room. After multiplying 1200 by 3, you get 3600. This is the value that will help you determine the CFM of your evaporative cooler.
- To finally calculate the CFM rating required to cool your room, you have to divide 3600 by 60. This will give you the value of 60. Therefore, you will require a 60 CFM cooler to cool a 1200 cubic feet room. This calculation may seem tricky at first, but it is rather simple if you know the formulae to use.
Other Factors You Should Consider When Buying an Evaporative Cooler
Most people rely on the CFM rating alone to determine the reliability of an evaporative cooler. However, there are other things to consider for purchasing a good cooler. Let's look at a couple last things you should look for in an evaporative cooler:
The first thing to look for in an evaporative cooler is the size of the reservoir. If you are looking for a portable cooler, you should opt for one with a larger reservoir, depending on where you will use it.
A large reservoir will eliminate the need to fill up the cooler frequently.
On the other hand, if you require further convenience, you can go for a continuous supply cooler. This type of a cooler receives water directly from a pipe. This completely eliminates the need to refill the reservoir. You will get uninterrupted cooling for as long as you wish.
Spray Nozzle Size
Another thing to keep in mind is the spray nozzle size.
If the spray nozzles are large, they will emit large droplets of water into the air. These water droplets will not evaporate quickly. Since they do not evaporate quickly, the environment becomes humid.
If you want proper cooling without humidity in the air, consider smaller spray nozzles. They will emit a fine blanket of water in the air and cool the area effectively.
As you can see, the CFM rating is among the most important factors to consider for purchasing an evaporative cooler. However, don't ignore the other factors mentioned here.