Description
The Reznor 196687 Primary Air Restrictor (HS38/51) is a genuine OEM airflow control part engineered for select Reznor commercial and industrial gas-fired unit heaters. This precision restrictor plate helps regulate the volume of primary combustion air entering the burner assembly, ensuring proper air-to-fuel ratio for stable flame performance and efficient combustion. Designed to meet strict factory specifications, it supports consistent heater operation, improved efficiency, and reduced emissions compared to improperly balanced airflow.
Key Features
- Genuine Reznor OEM primary air restrictor engineered for combustion control
- HS38/51 design for specific Reznor unit heater compatibility
- Helps regulate primary combustion air for balanced air-to-fuel ratio
- Supports stable flame performance and efficient combustion
- Precision-manufactured to meet factory specifications for fit and durability
- Ideal for performance tuning, maintenance, or replacement after component wear
