Maybe it’s just the flu, but… This is the time of year when we almost expect to get a cold or flu and so the sniffles, headaches, nausea, and aches and pains are often disregarded. This is also the time of year when we keep our windows and doors tightly closed and do our best to reduce heat losses from our homes. But, by doing so you may be locking in a deadly killer as the friends and families of nearly 500 people in the United States find out each year. Carbon monoxide, often called the silent killer, produces (5 comments)