Where should I install carbon monoxide detectors? What is proper carbon monoxide detector placement?

It is very important to install carbon monoxide detectors near or in each separate sleeping area. Many states now require that a carbon monoxide detector is placed in each bedroom. For added protection, placement of an additional carbon monoxide detector at least 15-20 feet away from the furnace or fuel burning heat sources is recommended. Also, install carbon monoxide detectors at least 10 feet from sources of humidity like bathrooms and showers. In two story houses, install one carbon monoxide alarm on each level of the home. If you have a basement, carbon monoxide detector placement is recommended at the top of the basement stairs.