This recall involves gas-fired residential boilers with brand names U.S. Boiler, New Yorker Boiler, Advantage, FORCE and Archer. The following boiler models that are currently installed at altitudes greater than 5,400 ft. above sea level are part of this recall. The U.S. boiler ES2 and Series 3 models are blue with a black top front and black vents on the front. The logo is located on the black top front of the boiler. The X-2 model has a solid teal color. The logo is located in the front middle of the boiler. The Lancer model is gray with a blue top. The logo is located in the front middle of the boiler. The Force G-3 model is solid gray. The logo is located in the front middle of the boiler. The CGE and CGF models are solid green The logo is located in the front middle of the boiler. The model and serial numbers are located on the boiler rating plate, which is on the top panel of the ES2 and Series 3 models, and on the inside vestibule (behind removable door) on the right side panel for X-2, CG-F, CG-E, AG , Force and Archer models. All of the models are about 40 inches tall from the floor to the top of the jacket. U.S. Boiler ES2 models ES23, ES24, ES25, ES26, ES27, ES28, ES29 (with or without "-N" or "-P" suffix) U.S. Boiler Series 3 models 303, 304, 305, 306, 307, 308, 309 (with or without "-N" or "-P" suffix) U.S. Boiler X-2 models X-202, X-203, X-204, X-205, X-206, X-207, X-208, X-209 New Yorker CG-E models CG30E, CG40E, CG50E, CG60E, CG70E, CG80E, CG90E New Yorker CG-F models CG20F, CG30F, CG40F, CG50F, CG60F, CG70F, CG80F, CG90F Advantage AG models AG3, AG4, AG5, AG6 FORCE models FORCE02E, FORCE03E, FORCE04E, FORCE05E, FORCE06E, FORCE07E, FORCE08E, FORCE09E Archer Boilers Lancer models LCR-2-038, LCR-3-068, LCR-4-102, LCR-5-136, LCR-6-170
