September 22, 2009
Alert #09-770


The following product safety recall was voluntarily conducted by the firm in cooperation with the CPSC.

Name of Product: Gas Boilers

Units: About 85

Importer: Bosch Thermotechnology Corp., of Londonderry, N.H.

Manufacturer: Bosch Thermotechnology Gmbh, of Germany

Hazard: A problem with the boiler's ignition due to insufficient output voltage from the boiler's transformer can damage the boiler's venting. This can result in leaking flue gases, posing a risk of carbon monoxide poisoning to consumers.

Incidents/Injuries: No incidents or injuries reported in the United States. Two incidents were reported in Germany, neither of which resulted in injury.

Description: The recall involves the Buderus GB312 gas-fired, floor standing condensing boilers. Model numbers included in this recall are: 312/90, 312/120, 312/160, 312/200, 312/240 and 312/280. "BUDERUS GB312" is printed on the front of the boiler. The boilers are blue, approximately 60 inches high and between 39 and 55 inches wide.

Sold by: Plumbing and heating wholesale distributors to plumbing and heating contractors nationwide from April 2008 through February 2009 for between $12,000 and $24,000 installed.

Manufactured in: Germany

Remedy: Bosch has directly contacted consumers who purchased the recalled boilers, inspected and, if necessary, repaired the boilers.

Consumer Contact: For additional information, contact Bosch Thermotechnology at (800) 283-3787 between 9 a.m. and 5 p.m. ET Monday through Friday, or visit the firm's Web site at


Picture of Recalled Gas Boiler

Picture of Recalled Gas Boiler with arrow indicating rating plate