Carbon Monoxide (CO) is a colorless and odorless gas produced by the combustion of fossil fuels, natural gas, propane, gasoline etc. This gas (CO) is naturally produced by common household appliances such as furnaces, gas water heaters, gas ovens/stoves, and even gas clothes dryers. When appliances are working properly and are properly vented, CO does not typically pose any issues. However, if the gas enters the living space and accumulates, it can be extremely dangerous, even deadly. Here are some of the most important knowledge points about Carbon Monoxide. It is colorless and odorless - Without a CO detector, there is NO WAY to identify the presence of the gas before it begins affecting you. It is heavier than air - This means the gas remains low in a room unlike smoke, which rises. It is produced by the combustion of fossil fuels - If you have an appliance that produces a flame, it will produce carbon monoxide. If there is a build up of CO in your home, you will start feelin...