Description
The Velocity Boiler Works (Crown) 960129 is a resettable spill switch designed to detect flue gas spillage on boiler and heating appliance venting systems. When combustion gases spill out of the draft diverter or vent connector — a sign of blocked or inadequate venting — this switch trips at 200°F to shut down the burner and prevent dangerous conditions in the equipment room.
Unlike single-use thermal fuses, this switch is resettable, allowing the technician to restore operation once the venting issue has been identified and corrected. It is a direct OEM replacement part for compatible Crown Boiler and Velocity Boiler Works appliances.
Key Features
- Resettable design — no need to replace after a single trip event
- 200°F trip temperature for accurate flue gas spillage detection
- Protects occupants and equipment from venting failures
- Direct OEM replacement for compatible Velocity Boiler Works / Crown Boiler models
- Mounts at the draft diverter or vent connector
Specifications
- Brand: Velocity Boiler Works (Crown)
- Part Number: 960129
- Type: Resettable Spill Switch
- Trip Temperature: 200°F
Application
This spill switch is intended for use on atmospheric-vent boilers and water heaters where monitoring of flue gas spillage is required. Always verify compatibility with your specific boiler model before installation, and follow all applicable local codes and manufacturer instructions.







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