Make sure all fuel-burning appliances are vented to the outside and inspected at the start of each heating season for possible blockage. Every year, nearly 300 people die from carbon monoxide poisoning.
Carbon monoxide is an odorless, tasteless, colorless, highly toxic gas.
The symptoms of carbon monoxide poisoning are easily mistaken for other common illnesses. For that reason, CO poisonings are often misdiagnosed. Symptoms such as headaches and fatigue are common to a number of illnesses. Moderate level CO poisoning - Vomiting, drowsiness, loss of consciousness. High level CO poisoning - Seizure, coma, permanent brain damage, and ultimately death.