LP Gas Water Heater Controls Warning/Correction NEWS from CPSC U.S. Consumer Product Safety Commission Office of Information and Public Affairs Washington, DC 20207 FOR IMMEDIATE RELEASE January 29, 1981 Release # 81-005 Robertshaw Company Issues New Warning On Explosion Hazard In 1,000 LP Gas Water Heater Controls WASHINGTON, D.C. (January 29, 1981) -- The manufacturer of "Unitrol" fuel control mechanisms used on certain liquid propane gas water heaters is renewing its efforts to publicize and correct a potential defect which may cause severe burn injuries and death resulting from explosion and fires. Since 1954, when the fuel controls first were sold to hot water heater manufacturers, there have been at least 48 deaths and 89 severe burn injuries from explosions of water heaters equipped with these gas controls. The program to replace the old gas controls with new ones is being conducted by the Robertshaw Controls Company of Richmond, Va., in cooperation with the U.S. Consumer Product Safety Commission. The manufacturer also is reissuing a national alert to warn consumers of the severe risk posed by continued use of water heaters equipped with the controls. The warning covers the "Unitrol" model 110 and model 200 gas controls used to regulate the flow of LP (liquid propane) gas to water heaters. These controls, manufactured about 25 years ago by Robertshaw's Grayson Controls division, of Long Beach, California, contain a potentially defective valve which could cause a gas leak and subsequent explosion and fire. Approximately 1,000 of the potentially defective controls still are believed to be in use nationwide. Many of these controls may be found on water heaters located in rural areas, such as in farm homes, in vacation or weekend homes, or in hunting or fishing camps. (LP gas commonly is used to fuel appliances in rural areas due to the unavailability of natural gas lines.) The potentially defective controls were sold to approximately 110 water heater manufactur