Thermasse designs and builds made-to-measure masonry heaters. Cœur de Foyer is its retail brand: an online shop, coeurdefoyer.fr, which sells the same components we use on our projects, and a YouTube channel showing how to assemble them. Two houses, one fire — and a clear boundary: Thermasse specifies and builds, Cœur de Foyer sells.
What you will find there
- Refractory materials — bricks, slabs, grog, mortars, high-temperature insulation and seals: everything needed to build a heater core, an oven or a heat-storage fireplace.
- Doors and hardware — firebox and oven doors, cleaning doors, grates, dampers, valves; complete packs for self-build.
- Finnish Tiileri kits — masonry heaters and masonry cookers in pre-cut elements, to build yourself or have built by a network fitter.
- Fireboxes and heat accumulators — modular elements for building a heat-storage stove around a manufacturer’s firebox.
- Wood-fired ovens — cast-iron bread and pizza ovens, in kit form or ready to cook, for indoors and outdoors alike.
- Flues and flue work — dampers, access doors, connecting pieces.
Who it is for
For the self-builder assembling a heater from our plans, for the professional — mason, stove builder, flue installer — looking for masonry heater components with no minimum order, and for the private customer who wants a bread oven in the garden. Data sheets are on every product; sizing questions, however, go to the workshop.
The tutorials
The Cœur de Foyer channel documents builds from unboxing to first fire: the Helmi cooker kit, the Aïda round heater, cleaning doors in the cladding. No video loads from this site until you click.
Go to the Cœur de Foyer shop · The YouTube channel · Self-build your heater, with support