What are possible sources of carbon monoxide in the home?
Under certain conditions, any fuel burning vehicle, tool, appliance or device can produce harmful levels of carbon monoxide if used inside a building, in an attached garage or basement, or near windows and doors. Common sources of carbon monoxide include furnaces and boilers; space heaters with pilot lights; gas stoves or ovens; dryers, water heaters or refrigerators that use gas or liquid fuel; lawnmowers, snow-blowers and other gas-powered yard equipment; cars, trucks, snowmobiles and other vehicles. Tobacco smoke is also a source of carbon monoxide.