Washington — The U.S. Consumer Product Safety Commission, in cooperation with A.O. Smith Water Products Co., has announced a voluntary recall of the company's 75-gal. natural and propane gas water heaters.

The water heaters' flue gas temperatures can exceed safe limits and produce excessive temperatures in the venting unit, posing a fire hazard. Also, the water heaters' exhaust can leak into surrounding rooms, posing a carbon monoxide hazard.

“A.O. Smith” or “State” is printed on the side of the units. A.O. Smith and State model and serial numbers included in this recall are available at www.cpsc.gov.

Both the model and serial numbers are printed on the water heater's rating plate.

The water heaters were sold by independent contractors and plumbers nationwide from November 2007 through January 2008 for between $1,000 and $2,500.

Consumers should immediately stop using the recalled water heater and contact A.O. Smith to arrange for a free repair. Additional information is available at 866/880-4661 or at www.hotwater.com.