What is often forgotten, are the vents from all of our power vented natural gas equipment. In order to operate efficiently and safely, natural gas equipment must be able to vent freely to the outside of our homes. When venting becomes buried and covered in snow, it is not able to supply the equipment with the fresh air it needs to operate. Most of these appliances are outfitted with safety switches, which will shut the equipment down in a case of faulty venting, but not all. Equipment that continues to operate with compromised venting, can lead to a house or building being filled with carbon monoxide, a dangerous and potentially lethal situation.
When the snow begins to accumulate, ensure that all outside vents are cleared of snow, and check them often. Even if it hasn't snowed recently, a windy day can cause drifting which can also lead to buried vents. Keep your vents clear, and check your carbon monoxide detectors regularly to ensure they are fully operational.