Now that the cold weather is upon most of us, it's a good time to get dialed in with your thermostat and know how to troubleshoot it. The thermostat is the brain behind your furnace's proper operation. Some have mercury switches inside, some use mechanical switches, some are digital, and programmable electronic models will do everything except wake you up in the morning!
Do you know how to troubleshoot a thermostat? And did you know a little tiny adjustment arm on a thermostat device -- called a heat anticipator -- can make your furnace cycle on or off frequently, or cause your furnace to not hold a proper temperature setting? About.com's Bob Formisano has good articles to help you understand how thermostats work and how to troubleshoot one.
