Pierre réfractaire arrière De Dietrich 7698331

The rear refractory stone is a critical heat-resistant component used in boiler and burner systems to protect the rear chamber from extreme temperatures. It helps maintain efficient combustion by reflecting heat back into the firebox, improving overall heating performance. This spare part is ideal for replacing damaged or worn refractory stones in gas burners and boilers, ensuring long-lasting durability and safety. Proper installation of this component is key to maintaining optimal operation of your heating equipment.