Pierre réfractaire arrière De Dietrich 7626615

The rear refractory stone is a high-temperature insulation component used in boilers and burners to protect the rear wall from extreme heat. This boiler spare part improves thermal efficiency and prolongs equipment life by reflecting heat back into the combustion chamber. Essential for maintenance and repair, a quality refractory stone ensures safe operation and consistent performance. Replace worn or cracked stones to maintain optimal heating system function.