providing full compatibility with SMART SYSTEM control platforms found in modern high-efficiency hydronic systems

and G27 series units

providing reliable over-temperature protection in high-static or restricted airflow conditions

Constructed with a self-extinguishing white ABS ribbed cover

Common Questions What does a red flashing light on the Lennox 49W66 indicate

Reznor 100526 Retrofit Kit Freon providing full compatibility with SMARTOptimizing older heating infrastructure requires reliable ignition components that eliminate the inconsistencies of standing pilot systems. The Reznor 100526 Spark Ignition Retrofit Kit is engineered for a direct conversion of Reznor F and B series unit heaters, specifically within the 200 to 250 MBH size range. This OEM Reznor ignition kit replaces outdated pilot lights with a 24V intermittent spark ignition module, ensuring the burner only fires