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.
Swamp Cooler Average Costs. 1  A whole house swamp cooler might cost $1,500 to $4,500 installed. 2  Two-stage evaporative coolers, which produce less in-home humidity by cooling the air before it passes through the moist pads, are quite a bit costlier than the one-stage coolers described above.