Description
The Reznor 113216 Blocked Vent Switch is a genuine OEM safety control designed to detect and respond to blocked vent or draft conditions in commercial and industrial Reznor gas‑fired unit heaters. When airflow through the venting system is restricted, this switch interrupts the combustion sequence — helping prevent unsafe buildup of flue gases, protecting internal components, and maintaining safe heater operation.
Key Features
- Genuine Reznor OEM blocked vent switch engineered for airflow safety monitoring
- Detects blocked vent/draft conditions to help prevent unsafe combustion operation
- Interrupts the burner sequence when proper venting is not confirmed
- Precision‑manufactured to meet factory specifications for fit and performance
- Durable design suitable for commercial and industrial HVAC environments
- Compact size for easy installation and replacement
