- Monroe News photo by KIM BRENT
Freezing temperatures can pose a risk of carbon monoxide poisoning from ice- and snow-blocked furnaces and water heaters, a local utility is reminding residents.
Michigan Gas Utilities is warning its customers and others in the county with high-efficiency furnaces and water heaters that ventilate through a wall rather than a chimney to be aware of possible blockages and buildups of snow and ice outside. Blocked vents should be cleared immediately since the obstruction can cause the high-efficiency systems to malfunction and shut off or — in extreme cases — lead to a buildup of carbon monoxide, a press release said.
Carbon monoxide is a poisonous gas that is invisible, tasteless and odorless. Its effects can be fatal. Those who experience sudden-onset flu-like symptoms should find fresh air and call 911.
Those who use high-efficiency furnaces and water heaters are encouraged to monitor the area around vents to prevent any blockages. Residents also should clear the area around the natural gas meters, regulators and piping by brushing away heavy snow to prevent meter damage, equipment malfunction or a disruption in service, MGU says. Icicles that fall also could damage equipment and cause a gas leak.
MGU advises against using ovens or stoves to heat homes since the natural gas can produce carbon monoxide and possibly cause a fire.