Lynn Manufacturing Replacement Combustion Chamber Kit, Burnham RS & RSM, 6186041 KIT CONTAINS: Combustion chamber 6186041, ceramic fiber blanket, kaowool moldable, ceramic fiber board and instructions. Chamber dimensions 18-1/4'' x 18-3/8'' x 17''. FIT: All Burnham RS and RSM models: RS-109, RS-110, RS-111, RS-112, RS-113, RS-114, RSM-96, RSM-126. Does NOT fit RSA, use Lynn kit 1173. SAVE TIME: Kits contain everything needed for the job in one box, saving time and simplifying ordering. Made in the USA by Lynn Manufacturing, Inc. Lynn Item 1107