The Hot Surface Ignitor (HSI) from Rheem MFG Company is a critical component for reliable ignition in gas appliances. Designed for high efficiency, this ignitor features a durable ceramic construction that withstands high temperatures. With a compact size, it fits seamlessly into various Rheem models, ensuring compatibility and optimal performance. The HSI operates on standard voltage ratings, making it suitable for a wide range of gas heating systems. Upgrade your appliance with this essential part to enhance safety and efficiency.