Bosch Thermotechnology Recalls Buderus Boilers Due to Carbon Monoxide Poisoning Hazard

Recall Insight

This CPSC action (record #20046) was formally reported on December 20, 2019. It is classified under Moderate severity, with a current status of Active. Bosch Thermotechnik GmbH, of Germany is listed as the recalling firm. Federal records indicate About 170 units are affected.

The documented reason for this recall is: The siphon can become blocked, leading to a delayed ignition that can damage the boiler's exhaust system, creating a carbon monoxide hazard. Distribution information was not included in the agency filing, so consumers should assume broad potential exposure until the firm publishes point-of-sale details. The remedy documented by the agency is: Consumers should immediately contact Bosch for a free repair. Consumers who continue to use the boilers while awaiting repair should have a working carbon monoxide alarm installed outside of sleeping… — consumers holding this product should act on that instruction rather than relying on general guidance.

To put this record in context, PlainRecalls indexes 83,949 recalls across the FDA, CPSC, NHTSA and USDA FSIS going back to 1995. Within the same product category, the database holds 6 closely related recalls, of which 1 were also issued by CPSC. That clustering is a signal — repeated actions in a narrow category often indicate a systemic quality-control issue, a supplier-wide contamination, or a design defect that has propagated across product lines. This recall is roughly 7 years old; older recalls can remain relevant because many units enter resale, rental, and secondary-market channels where the original warning never reaches the end user. Always cross-check the recall number against the official agency page before relying on any summary.