In winter, your furnace constantly cycles on and off all day, every day for months at a time. Today you'll learn what you should do in return to ensure happy days for both the furnace and you! A forced-air furnace is easy to take for granted. It's basically quiet, out of sight, and simple in theory (or so we think!) But in reality, furnaces are complex technology. First, they run on expensive fuels, so maintaining peak efficiency is important. They turn on and off dozens of times every day, so calibration and lubrication comes into play. They also process more dust than a vacuum cleaner, so filtration and cleaning are extremely important. Then there are the years of extreme temperatures that can fatigue and crack the metal heat exchanger, allowing carbon monoxide to escape... and creating a potential fire hazard! Want to ensure lots more ?happy days? for both your furnace and you? Have it serviced professionally at least once a year... and enjoy!