PHILADELPHIA — Crown Boiler Co., in cooperation with the U.S. Consumer Product Safety Commission, has issued a recall notice Dec. 3, 2013, for gas-fired hot water boilers. The air pressure switch can fail to shut down the burners in the event that there is a blockage in the vent system allowing the boiler to emit excessive amounts of carbon monoxide, posing a CO poisoning hazard to the consumer.

Consumers are being instructed should stop using this product and contact their heating contractor immediately.

This recall involves Crown Boiler CWD series cast iron hot water boilers that use natural gas or LP to heat water in hydronic applications. The boilers are red and gray, about 37-in. tall, about 23-in. deep and range from about 16- to 42-in. wide. The Crown Boiler logo is on the front of the boiler. Recalled boilers have model numbers that begin with CWD and were manufactured between May 1, 2005, and July 1, 2013. The model number and the manufacturing date are located on a white rating label located on the upper right side of the boiler. The manufacturing date appears under “Series” in the MM/DD/YYYY or M/D/YYYY format or as a two-letter code. Recalled models have dates between 5/1/2005 and 7/1/2013 or one of the following two-letter codes:

EB, FB, GB, HB, IB, JB, KB, LB, AC, BC, CC, DC, EC, FC, GC, HC, IC, JC, KC, LC, AD, BD, CD, DD, ED, FD, GD, HD, ID, JD, KD, LD, AE, BE, CE, DE, EE, FE, GE, HE, IE, JE, KE, LE, AF, BF, CF, DF, EF, FF, GF, HF, IF, JF, KF, LF, AG, BG, CG, DG, EG, FG, GG, HG, IG, JG, KG, LG, AH, BH, CH, DH, EH, FH, GH, HH, IH, JH, KH, LH, AI, BI, CI, DI, EI, FI, GI, HI, II, JI, KI, LI, AJ, BJ, CJ, DJ, EJ, FJ.

The model number and the manufacturing date are located on a white rating label located on the upper right side of the boiler.

Plumbing and heating wholesale distributors nationwide sold approximately 2,200 of the boilers from May 2005 through July 2013 for between $4,000 and $6,700.

There have been no reported incidents or injuries.

Additional information is available from Crown Boiler Company toll-free at 855/688-0776 from 8 AM to 5 PM EST, e-mail cap@crownboiler.com or online at www.crownboiler.com.