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How Evaporative Coolers Can Cut Your Energy Bill and Save the Environment
For those who live in high-temperature regions with low humidity, evaporative coolers (also known as swamp coolers, wet air coolers or desert coolers) are a cost-effective and environmentally-friendly way to keep your home or office cool. Read on to learn more about how evaporative coolers work and why they’re a great alternative to air conditioning systems.
How Evaporative Coolers Work
As the name suggests, evaporative coolers keep the air cool by using evaporation to lower indoor temperatures. Coolers are made of the following components:
2. Water – held in a reservoir or pumped directly from a continuous source
3. Water pump
4. Evaporative pad made of fiber (such as wood shavings, or synthetic or cellulose fiber) or rigid media (usually made of stacks of corrugated material)
How do all the parts work together? The fan pulls hot air into the unit and through the evaporative pad, which is constantly kept moist as water is pumped through it. Through evaporation, the pads bring the air temperature down and the fan re-circulates the cooled air back into the room.
Evaporative Coolers vs. Air Conditioners
Here’s how evaporative coolers compare to air conditioning units:
High air quality – Unlike an A/C, you can keep the doors and windows open when you use an evaporative cooler, therefore allowing a constant flow of fresh, cool air into the room
Less energy consumption - Because they use a standard 120-volt outlet for power, evaporative coolers consume 75% less electricity than standard A/C units
Less expensive – Since they use less energy and fewer materials, you can run an evaporative cooler for a third of the cost it takes operate an air conditioner
Better for the environment – Evaporative coolers don’t use Freon or other chemicals that are harmful to the ozone or dry out the air
Less maintenance and easy to install – Since their cooling process is much simpler, coolers require little or no assembly. Maintenance is very minimal compared to an A/C
Quiet noise level