Aspen Cooling Pads. When it gets hotter outside, your electric bills will start to go up. One way to keep expenses down is by installing an evaporative swamp cooler. Using aspen cooling pads or evaporative pads and filters, this form of cooling has become quite popular in Australia. It not only keeps the temperatures down, but the swamp cooler also uses a fraction of the power … [Read more...] about Aspen Cooling Pads