Williamson-Thermoflo Gas Boilers Recalled Due to Carbon Monoxide Hazard
U.S. Consumer Product Safety Commission recall (2008-05-06). Hazards: carbon monoxide, chemical. About 1,800 units in the US.
| Agency | U.S. Consumer Product Safety Commission |
|---|---|
| Recall number | 08567 |
| Published | 2008-05-06 |
| Last updated | 2014-05-23 |
| Product category | Boilers & Accessories |
| Products | Williamson-Thermoflo GWS and GWI Gas Boilers |
| Firms | Weil-McLain, of Michigan City, Ind. (manufacturer) |
| Manufactured in | United States |
| Units (US) | 1,800 |
| Hazard classes | carbon monoxide, chemical |
| Remedy classes | repair, inspect |
| Trade facets | hvac, plumbing water heating |
| Sold | Plumbing and heating wholesale distributors to plumbers and contractors nationwide from October 2001 through December 2007 for between $1,500 and $2,700. |
Description
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.
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.
Remedy
Consumers who have not already been contacted, should contact their installer for a free safety inspection and repair, if necessary.
Incidents and injuries
None reported.
Machine access
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Source: U.S. Consumer Product Safety Commission recall notice (US Government work). Not affiliated with or endorsed by CPSC. Structured by Data Foundry (product-recall-structuring@2); last changed 2026-09-28. Always confirm with the agency notice.