The Annual Fuel Utilization Efficiency rating tells you how much value you get for every dollar spent on heating. Basically if you paid X dollars for oil or gas towards heating of your rooms, AFUE will tell you what fraction of the amount showed up in your rooms as...
If someone in your area is huffing A/C refrigerant from your system, you’ve got a problem on your hands. Not only is the person huffing refrigerant performing an illegal act, but he or she could, at worse, die from the act. And when refrigerant is removed from...