Modern furnaces are more energy efficient and economical than ever. With older systems, the annual fuel utilization efficiency (AFUE) rating could be as low as 56 percent in an older system. Modern high efficiency systems can have an AFUE rating of more than 90 percent. AFUE rating is the percentage of heating fuel converted to heat. A rating of 90 percent means that 90 percent of the fuel converts to heat. Since heating can be as much as one half of the energy usage in a home, efficiency is paramount.
To keep a modern system running at peak efficiency, periodic maintenance should be performed. Over time, dirt and other contaminants can accumulate on parts, electrical components can corrode and thermostats or timers may need fine tuning. Furnace repair should be performed as needed.
Most are aware that furnace filters should be changed on a regular basis, as much as … Read More