High risk Recalled May 6, 2008 About 1,800 units Updated May 23, 2014

Williamson-Thermoflo Gas Boilers Recalled Due to Carbon Monoxide Hazard

Lead / chemical

The hazard

If there is a leak in the vent piping, the recalled boilers can leak carbon monoxide (CO) into the buildings in which they are installed, posing a risk of CO poisoning.

Incidents reported: None reported.

What to do now

Consumers who have not already been contacted, should contact their installer for a free safety inspection and repair, if necessary.

Contact: For more information, contact Williamson-Thermoflo toll-free at (866) 783-9516 between 8 a.m. and 4 p.m. CT Monday through Friday, or visit the firm's Web site at www.williamson-thermoflo.com

About this recall

The recall involves cast iron, gas-fired boilers used for space heating. The following model names and serial numbers are included in the recall: Model Name Serial Numbers GWS-127, GWS-158 From CP 5160092 through CP 5663040 GWI-063, GWI-095, GWI-127, GWI-158 From CP 4363986 through CP 5699844 The model name and serial number are located on separate labels on the outside of the left panel.

Product photos

Recalled Gas Boiler
Recalled Gas Boiler

Photos: U.S. CPSC