A set is how many times you are going to lift and then take a break. So if you lift the weight five times, take a break, and lift again you will have done two sets. The five times would be your reps. My coaches like to write the workout like so: Squat 3x2, Bench 2x5, and so on.
Evaporative coolers use both electricity and water. How much water is used depends on the humidity of the day and the fan speed that the unit is set to operate on. A portable unit might use up to 4 litres per hour while a central system could use as much as 25 litres per hour. Ducted evaporative coolers must refresh their water supply otherwise it can become too salty, and a range of water management systems are used by different brands/models.
There are several types of evaporative coolers, including those that use ductwork and those that sit in windows. This factor, along with installation, and the size of the unit will affect the final cost. On average, installing a swamp cooler for a 1,500 sq.ft. home costs about $3,900 for the cooler and installation. Evaporative coolers vs air conditioners. Both evaporative coolers and air conditioners will cool the air in your home, but in two very different ways. Essentially, evaporative coolers work by adding moisture to the air, while air conditioners work by condensing or removing moisture from the air.