Williamson-Thermoflo Gas Boilers Recalled Due to Carbon Monoxide Hazard
⚠ Critical Alert — Stop Using Immediately
This product has been flagged with severe risks (fire or burn). Stop using it now and contact the brand or CPSC for a refund, repair, or replacement.
CPSC Recall Notice
Source: U.S. Consumer Product Safety Commission (CPSC) — official agency notice for recall CPSC-4589.
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.
Corrective Action (per CPSC)
Source: U.S. Consumer Product Safety Commission (CPSC) — official agency notice for recall CPSC-4589.
Consumers who have not already been contacted, should contact their installer for a free safety inspection and repair, if necessary.
✅ What you should do
- Stop using the product if you own it.
- Check the model number, lot code, or sell-by date against the recall notice above.
- Contact Plumbing And Heating Wholesale Distributors To Plumbers And Contractors Nationwide From October 2001 Through December 2007 For Between $1,500 And $2,700. or the retailer where you bought it for a refund, replacement, or repair.
- For the most current official instructions, visit the CPSC recall page.
- If you've been hurt by this product, report the incident to CPSC.
Consumer Contact (per CPSC)
Source: U.S. Consumer Product Safety Commission (CPSC) — official agency notice for recall CPSC-4589.
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 the U.S. Consumer Product Safety Commission
The CPSC protects consumers from injuries and deaths from thousands of types of consumer products — toys, furniture, electronics, appliances, and more.
Visit CPSC.gov →📣 Report an unsafe product to the CPSC
If you own this product and experienced a defect, near-miss, or injury, file a report with the CPSC. Consumer reports are the primary signal the agency uses to identify defect patterns and trigger future recalls. Your report is free, takes about 10 minutes, and can stay anonymous to the manufacturer.
Plumbing And Heating Wholesale Distributors To Plumbers And Contractors Nationwide From October 2001 Through December 2007 For Between $1,500 And $2,700. Recall FAQ
Plumbing And Heating Wholesale Distributors To Plumbers And Contractors Nationwide From October 2001 Through December 2007 For Between $1,500 And $2,700. is the subject of a consumer products recall: Williamson-Thermoflo Gas Boilers Recalled Due to Carbon Monoxide Hazard. The notice was published on May 6, 2008 by the U.S. Consumer Product Safety Commission (CPSC). Approximately 1,800 units are potentially affected.