The pressure switch could have an internal defect, which could allow the boilers to produce excessive levels of carbon monoxide.

The U.S. Consumer Product Safety Commission, in cooperation with PB Heat of Bally, Pa., announced a voluntary recall of about 1,200 gas boilers. The pressure switch could have an internal defect that could fail to shut down the boilers under vent or air inlet blockage. This switch defect could allow the boilers to produce excessive levels of carbon monoxide, posing a risk of carbon monoxide poisoning to consumers.

This recall involves the DE and PSC II Gas-Fired Cast-Iron Boilers with the Endura Plastics Model ES2035 pressure switch used for home heating and domestic hot water heating. The boilers were available in either natural or LP gas.

These boilers were sold at plumbing and heating wholesale distributors nationwide from May 2007 through July 2008 for between $1,800 and $3,000. Consumers should stop using recalled products immediately unless otherwise instructed. No injuries have been reported as yet.

The boiler-rating label is located on the top jacket panel on Series PSCII models and the left side jacket panel on the Series DE models. The label includes the model and serial number. The following model names and serial numbers are included in the recall:

  • Model names - DE-03, DE-04, DE-05 and DE-06.

  • Serial numbers - 5040768 to 5052860 PSCII-03, PSCII-04, PSCII-05, and PSCII-06: 5040777 to 5052166.

Other suffix designation may follow the base model number such as SV-WPC.

Consumers who have not already been contacted, should contact their installer immediately for a free safety inspection and repair, if necessary.

For more information, contact PB Heat toll-free at 877/257-3300 between 8 a.m. and 4 p.m. ET Monday through Friday or visit the firm’s Web site

To see this recall on CPSC’s Web site, including pictures of the recalled product, go