Snowstorms and Furnaces03/17/2016 Winter in Manassas isn’t done yet. Mother Nature can typically be unpredictable. While it can be nice one day, the next day could change to snow. When this occurs, you can help avoid the need for unforeseen furnace service by taking certain precautions. The exhaust from both conventional furnaces and high-efficiency furnaces is directed outside of your residence. However, there is a difference between these two. High-efficiency furnaces also pull fresh air from outside the home into your house, which means it’s significant for air to be able to flow freely to ensure appropriate and safe operation. Sometimes the intake and exhaust pipes of high efficiency units exit through the side of your residence or vertically through the roof. When this is the situation, you’re susceptible to having heavy snowfall bury them, which will block the free flow of air your high-efficiency furnace needs. (Don’t panic, though. High efficiency furnaces are designed to automatically shut off if these pipes are blocked.) To avoid air flow problems during a heavy snowfall, be sure to: Ensure there’s a 3-foot/1-meter clearance near your intake and exhaust pipes. Examine the area occasionally and clear any snow that has fallen into the cleared area. We understand the weather in Manassas can change every day during the last few weeks of winter and that weather can effect the operation of your furnace. If you want us to review any areas around your home or if you need answers to any questions, call Twin Air LLC in Manassas at 703-754-1062. You can also set up an appointment with us online to get more information. Your family’s safety and comfort are our top priorities.