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Home › Appliances & tools › Williamson-Thermoflo Gas Boilers
Check whether yours is affected, then follow the instructions below.
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.
The Recall Registry rates this worth checking — we found nothing in the notice describing a specific injury. A recall covers only the versions, UPCs or date codes it names, so check those against yours.
Photos help. Identifiers decide. Appearance can vary by color, finish or packaging. Confirm the model number, date code or other identifier in the official notice.

Recall image provided by CPSC
Consumers who have not already been contacted, should contact their installer for a free safety inspection and repair, if necessary.
Who to 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
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.
Plumbing and heating wholesale distributors to plumbers and contractors nationwide from October 2001 through December 2007 for between $1,500 and $2,700.
This recall was issued by the U.S. Consumer Product Safety Commission. The Recall Registry summarises it — always confirm the details at the source.
Their exact wording: “Williamson-Thermoflo Gas Boilers Recalled Due to Carbon Monoxide Hazard”
Worried about the other things in your house? You can write down what you have and be told if one is recalled — or, if you sell second-hand, check your whole stock at once.
Filed under: Appliances & tools
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