All About Air Conditioners
For thousands of years, people have been doing whatever they can to control the temperature of their surroundings. For instance, in the 3rd century, Roman Emperor Elagabalus dispatched 1,000 slaves to the mountains to fetch snow for his gardens. Thousands of years later the first window unit air conditioner was introduced, in 1932. Unfortunately, however, it was decades before the average person could afford air conditioners with an air conditioning coil. Air conditioning was actually used a lot by movie theaters during the Great Depression, as despite its high cost it was a huge draw for patrons who wanted to get out of the heat. Years later, movie theaters still use air conditioners quite regularly. Cleaning air conditi (more…)