The U.S. Consumer Product Safety Commission, in cooperation with A.O. Smith Water Products Co,. has issued a voluntary recall of about 1,500 natural and propane gas water heaters. The water heater's exhaust can leak into the surrounding room, posing a carbon monoxide hazard. A fire hazard is posed when excessive temperatures are reached in the venting unit, caused by the water heater's flue, exceeding safe gas temperature limits.

These were manufactured in the United States and sold by independent contractors and plumbers, from November 2007 through January 2008. Sale prices were between $1,000 and $2,500. This recall involves 75 gallon natural and propane gas water heaters featuring "A.O. Smith" or "State" printed on the side of the unit. Please check the CPSC press release for more information on the recalled water heaters.

Consumers can contact A.O. Smith at (866) 880- 4661 to arrange for a free repair of the recalled water heater, or visit A.O. Smith's website at www.hotwater.com.