Snowstorms and Furnaces03/17/2016 Winter in Manassas Park isn’t quite over yet. Mother Nature can typically be unpredictable. While it can be nice one day, the next day could dump snow on us. When this take place, you can help dodge the need for unforeseen furnace service by taking some precautions. The exhaust from both conventional furnaces and high-efficiency furnaces is moved outside of your house. But, there is a difference between the 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 transfer freely to ensure proper and safe operation. Once in a while the intake and exhaust pipes of high efficiency units depart through the side of your residence or vertically through the roof. When this is the case, you’re in danger of 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 meant to automatically shut off if these pipes are blocked.) To stop air flow obstruction during a heavy snowfall, be sure to: Make sure there’s a 3-foot/1-meter clearance surrounding your intake and exhaust pipes. Look at the area regularly and clear any snow that has fallen into the cleared area. We realize the weather in Manassas Park can change on a daily basis during the last few weeks of winter and that weather impacts the operation of your furnace. If you want us to review any areas around your residence or if you have questions, call Woody's Sudden Service Inc in Manassas Park at 703-369-5528. You can also arrange an appointment with us online to get further information. Your family’s safety and comfort are important to us.