Return to the water heater and set the temperature of the thermostat by turning the screw clockwise. While turning the screw towards a hotter setting listen for a CLICK when the thermostat reaches the temperature in the tank. This means power is now going to the heating element and the water inside is getting hotter.
Evaporative cooler. An evaporative cooler (also swamp cooler, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from typical air conditioning systems, which use vapor-compression or absorption refrigeration cycles. Evaporative cooling works by exploiting water's large enthalpy of vaporization.
Evaporative Coolers, sometimes called swamp coolers, is another way to cool air in warm climates with low humidity. | Photo courtesy of Public Domain Photos. In low-humidity areas, evaporating water into the air provides a natural and energy-efficient means of cooling.Evaporative coolers, also called swamp coolers, rely on this principle, cooling outdoor air by passing it over water-saturated pads, causing the water to evaporate into it.hen operating an evaporative cooler, windows are opened part way to allow warm indoor air to escape as it is replaced by cooled air. Unlike central air conditioning systems that recirculate the same air, evaporative coolers provide a steady stream of fresh air into the house.