Description
The Velocity Boiler Works (Crown) 900145 Cerafelt Sealing Strip is a precision-cut, 1-foot length of high-temperature ceramic fiber sealing material designed for use in residential and light commercial boiler applications. Engineered as a genuine OEM replacement part, this cerafelt strip provides an effective thermal and combustion gas seal around boiler access doors, cleanout covers, and flue connections — helping maintain combustion efficiency and preventing dangerous flue gas leakage.
Product Overview
Cerafelt is a flexible, lightweight ceramic fiber material renowned for its outstanding resistance to high temperatures and thermal cycling. It compresses to form a tight, durable seal between mating surfaces, making it the preferred choice for boiler door gaskets and sealing applications where conventional rubber or foam materials would fail.
Key Features
- Genuine OEM Velocity Boiler Works (Crown) replacement sealing strip
- High-temperature ceramic fiber (cerafelt) construction
- 1-foot length for precise, custom-fit installation
- Flexible and compressible for a tight, reliable seal
- Resists thermal cycling, combustion gases, and moisture
- Ideal for boiler access doors, cleanout covers, and flue connection sealing
- Helps maintain combustion efficiency and prevents flue gas bypass
Applications
- Boiler door and access panel gasket replacement
- Flue collar and connection sealing
- Cleanout cover sealing on Crown/Velocity Boiler Works boilers
- General high-temperature sealing in hydronic and steam boiler systems
Why Replace Your Boiler Sealing Strip?
Over time, boiler door and flue sealing strips degrade due to repeated heating and cooling cycles, leading to combustion gas leaks, reduced efficiency, and potential safety hazards. Replacing worn cerafelt strips with a genuine OEM part restores the integrity of the seal, ensuring safe and efficient boiler operation.
Compatibility
- Designed for Velocity Boiler Works (Crown) boiler models requiring cerafelt sealing material
- Consult your boiler’s service manual or contact a qualified technician to confirm compatibility with your specific model







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