Due to their relatively lower upfront costs, installation and operation, evaporative coolers are rising in popularity as common cooling alternatives to typical air conditioning systems. Also known as swamp coolers, other benefits of evaporative coolers include the fact that they provide fresher air and are associated with lower risks of carbon monoxide pollution, which are one of the most common causes of indoor air pollution. Assuming that you’ve already decided to go for an evaporative cooler as your home’s cooling method, what are your options when it comes to evaporative cooler installation? To help you make an informed decision, below is an overview of the various types of swamp coolers along with a brief explanation of what each option is all about.
System Type By Working Mechanism
1. Direct Evaporative Coolers:
A direct evaporative cooler sucks hot air from the surrounding environment and blows it through a water-saturated medium such as soaked pads. The air is cooled as evaporation occurs as humidity is increased and stagnant air is removed from the vicinity. The cool air is then distributed throughout the living space by the unit’s fan blower. These are sometimes known as single stage coolers.
2. Indirect Evaporative Coolers:
Indirect swamp coolers are another common option, where there are two air streams; the primary and the secondary air stream. The air that passes through the secondary air stream is cooled by water and directed into a heat exchanger, which in turn cools the air passing through the primary air stream. Cool air from the primary air stream is then circulated throughout your living space by the unit’s blower. In indirect systems, the evaporative media is found inside a cooling tower. These are sometimes known as two-stage coolers.
System Type by Evaporative Cooler Installation
1. Up-Draft Cooling Units:
Also known as horizontal coolers, updraft units are installed on the floor, such that they blow cool air upwards to cool your home. Some homeowners prefer this type of evaporative cooler installation option for their relatively lower costs of installation and maintenance.
2. Down-Draft Cooling Units:
As opposed to up-draft installations, down-draft evaporative coolers are installed on your home’s roof space or ceiling, such that cool air is blown downwards to cool your home. However, down-draft units can be relatively expensive to install, even though they are the most popular installation options preferred by most homeowners.
3. Side-Draft Units:
These units are usually installed on the side of the home, such as the window space, from where the unit blows cool air into your living space as a window air conditioner would.
In summary, Up-draft, down-draft, and side-draft units are the most common options when it comes to a swamp cooler installation. Other evaporative cooler installation options include standalone units, combined systems, and portable swamp coolers. When deciding on the evaporative cooling unit to install, some of the crucial factors to consider would be the purchase costs, installation costs, size, and capacity, as well as the convenience of operation based on your preferences. Always ensure you choose a good HVAC contractor with remarkable experience in evaporative cooler installation.