2900C Replaces: RSF FR-98.11.20.SBR C Cast baffle and FR-98.11.21.SBR ceramic wool blanket. Also replaces RSF FR-98.11.20.FB smoke baffle and prior part number (pre 2020) FR-11.6.N; this is a new single piece design which replaces 2 panels of FR-11.6.N. Blanket is included as it was added for SBR models to increase efficiency. Not required for non-SBR models. Fits: RSF ONYX SBR, ONYX 2, Onyx AP, Focus 320, and Focus 320 SBR wood fireplaces. Baffle blanket is not used for ONYX 2, ONYX AP, and Focus 320. RSF is an ICC (Industrial Chimney Company) brand. Size: 24-3/4" x 13-5/8" x 1/2" board, 26-1/2" x 14-3/8" x 1/2" blanket Materials: Ceramic fiber alternative board and blanket which, unlike ceramic fiber, is not classified as carcinogenic or hazardous. Board is hard, strong, withstands 2100F, and is rigidized grey for added durability. Blanket is soft, flexible & withstands 2100F. Material is comparable to Superwool Plus, SuperMag, and Insulfrax. Made in the USA by Lynn Manufacturing, Inc.

- Replacement baffle board and blanket kit for RSF ONYX SBR and Focus 320 SBR wood fireplaces. Also fits RSF ONYX 2, Onyx AP, and Focus 320 which only use the baffle board.

- Baffles in wood stoves and inserts are required to be in good condition to burn efficiently and meet EPA emissions regulations. The baffle, when working correctly, creates a secondary high temperature burn zone to reduce smoke emissions. Over time, it is normal for baffles to deteriorate and they can be easily broken during routine maintenance. Stoves with broken or missing baffles will burn less efficiently, smoke more, and not comply with emissions regulations. To ensure your stove is working efficiently and safely, inspect your baffles yearly and replace them when they have visible damage such as cracking or missing material.
- Lynn Manufacturing’s replacement baffles are designed from a special high temperature ceramic fiber alternative insulation that both insulates and can withstand high temperatures and chemical attack. This is an improved design which does not carry a respiratory health and safety warning, unlike ceramic fiber. This material is a replacement for vermiculite, ceramic fiber, and C-Cast.