A swamp cooler is an ingenious invention which, unlike air conditioning, cools a house without refrigeration. Working on the same principle that perspiration does, it works well in very dry climates like ours where the children won't go swimming unless the temp is at least 105 degrees. A dry breeze blowing over a wet body makes that wet body COLD! This is what a swamp cooler looks like:
Ours is on the roof. Air is pulled into the box through wet pads that line the inside. A small motor turns a fan that blows the cooled air into the house. There is also a pump in there, that circulates water over the tops of those pads to keep them wet. Hence, the air is continually cooled and so is the house. Keeping the windows open makes it more efficient and keeps the house from feeling damp. It doesn't cost much more to run than a fan does, but it is somewhat noisy, and there is the dust. Probably if we would turn it on once a week through the winter, we would not have the dust problem from my last post. Now why didn't we think of that seven years ago??? Merlynn, add this to your list of weekly jobs!
For those of you who are mechanically inclined, here's what the inside looks like:
Our swamp cooler (or evaporative cooler) can keep the house about 20 degrees cooler than the outside temp, so we run it until it is about 105 out. After that we turn on the AC!
You will not find a swamp cooler in Georgia or in Alaska. :)