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Refractory cores without cladding
The very essence of a high-performing masonry heater
Refractory cores are the central structure of your masonry heater, where the magic happens: this is where the fire comes to life and where the hot flue gases circulate before being released as gentle, long-lasting heat.
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✅ Exceptional materials for optimum performance
Made from Wolfshöhe firebricks (Germany), specially designed for Grundofen and Kachelofen, these refractory cores meet the strict requirements of the EN 15544 standard. Renowned for their strength and exceptional thermal inertia, these bricks guarantee efficient combustion and prolonged heat release.
? Nordic design, French adaptation
These UZ37-type masonry heater cores incorporate a counterflow flue gas circuit, a technology derived from Finnish and Swedish heaters. This system allows maximum recovery of the energy contained in the flue gases, thus optimising the inertia and efficiency of the heater.
? A technical base ready to be clad
Designed to be integrated into a custom cladding (stone, tiles, render...), these firebox cores form the internal, technical part of the heater, allowing even heat distribution.
? Distributed in France by Cœur de Foyer
Cœur de Foyer is the official distributor of Wolfshöhe firebricks in France. Find our solutions at coeurdefoyer.fr and discover our craft expertise at thermasse.fr.
? A high-performing masonry heater starts with a quality refractory core. Choose know-how and durability with high-end Wolfshöhe masonry heater cores, distributed exclusively by Cœur de Foyer.
? Need advice? Contact us to design a heater suited to your project!