When you are at home and awake, keep your house at approximately 75° F.  When you are away from your house for two or more hours you should bump the temperature up to approximately 79° F.  When you are sleeping it should be set to approximately 75° F.  If you aren’t co...

On July 17, 1902, a young research engineer initialed a set of mechanical drawings designed to solve a production problem at the Sackett & Wilhelms Lithography and Printing Company in Brooklyn, New York. These were not the first drawings that 25-year-old Willis Carrier...