The proof is in the projects
Projects
Real projects, delivered with their technical specifications. Every heater is unique: sized for the house it is built in. Every point on the map is clickable.
Project built by the workshop The workshop — Pouilly-en-Auxois · self-builds have their own map →
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Type of work
Bread oven Heat-storage fireplace Heat-storage stove Masonry heater kit Site-built masonry heater Supported self-build
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Light render and long bench: a heater built by its owner at Westhoffen
Bas-Rhin, 2025 — 9 kW calculated by the workshop, six weeks of building by the owner, from heater core to first fire.
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Inside the old fireplace, a masonry heater
An old stone fireplace turned into a masonry heater at Joncy (Saône-et-Loire): lintel and corbels kept, controlled cast-iron firebox, corner heated bench.
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The Rosny-sous-Bois snail: a masonry heater at the Bois-Perrier nursery school
The sixth masonry heater built for the schools of Rosny-sous-Bois: a terracotta spiral in the hall of the Bois-Perrier school — winner of both categories of the AFPMA 2026 photo competition.
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Green tiles, oven and two heated benches under the beams
A heater in the Kachelofen tradition, designed to measure: moulded green tiles, an oven with cast-iron doors, a glazed firebox and two heated benches set at right angles.
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Corner firebox and tiled bench in a mineral interior
A glazed corner firebox in a lime-rendered mass, ringed by a heated bench in glazed tiles: radiant heat as close as can be to everyday life.
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Two masonry heaters for the Mermoz school complex in Rosny-sous-Bois
Nursery school and leisure centre: at the Mermoz complex, the town of Rosny-sous-Bois had two masonry heaters built — the public contract that came before the école du Bois-Perrier.
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A see-through heater between two rooms, under the mezzanine
Between two brick walls, a masonry heater with a see-through firebox and a wide bench: the same burn can be watched from both rooms.
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Oven, firebox and two-level bench on cement tiles
In a beamed kitchen, a masonry heater combining a firebox, a cooking oven set above it and a two-level heated bench.
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Kaschütz ceramic storage unit and Durasic flues, in a stone house
The core of a heat-storage stove laid bare: Kaschütz E12 firebox, ceramic storage unit and 180 mm Durasic flues, built against a stone wall before cladding.
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A wall that heats: built-in heater and log niches in Cordon
Facing the fire, a lit bench niche; beside it, two log stores framed in black steel. The heater disappears into a wall of mineral render that becomes the room’s source of heat.
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PRAC kit: the heated bench, channel by channel
Building a PRAC kit at Marcilly-Ogny: the open heated bench reveals the smoke channels, and the first fire is lit with the mass still bare.
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When the heater also feeds the central heating
A masonry heater with a hydro firebox: the heat goes both into the storage mass and into the house’s heating circuit.
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Wide bench, large oven and natural finish: accumulated pleasures in the heart of the Morvan
Here is the finished project, with the terracotta tiles of the heated bench answering the clay render finish.The tiles laid by the customer are…
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A masonry heater at the Jacques-Chirac leisure centre
In a new timber-framed public building, a rendered masonry heater holds the corner of the activity room, between the children’s lockers.
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Earth render, vaulted oven and hotplates
A masonry heater finished in earth render, combining a vaulted oven, glazed firebox, heated bench and cast-iron hotplates in a single volume.
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A wave-shaped heated bench, brick by brick
A masonry seat in a double curve, undulating backrest included: every brick on the radius cut to a trapezium, above the flue path.
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Numbered bonding: every brick in its place
In a vaulted stone room, a masonry heater built brick by brick — each one marked in pencil according to the bonding plan.
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Heater in the passage and passage in the chimney: trends reversed in the Cher (18570)
Welcome to this article, which looks at a heater whose owners took a very active part in building it, based on a…
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An Alsatian heater? Or not! | Grundofen in Petitmagny (90170)
Spring 2018: we stay in the Grand Est and in our own region, since they have been enlarged; so here we are in the Territoire de Belfort…
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A weekend by the sea with this heater in Saint Hymer (14130) | Finnish masonry heater kit
A Finnish masonry heater kit assembled in a new timber-frame house in the Pays d’Auge: glazed firebox, arched oven and preformed storage elements.
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Gironde Strait | Simplicity and sobriety at Saint-Thomas de Conac (17150)
In late 2017 we cross France westwards and end the year just before the holidays with this Brunner HKD 7 firebox coupled with a KMS storage unit…
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First fire at the Les Boutours eco-nursery school
A masonry heater clad in large pale panels, lit for the first time in an eco-school still under construction.
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A heater clad in dressed stone
Regular courses, a monolithic lintel and a limestone shelf: the heater extends the stone walls of the house instead of standing apart from them.
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From study to site: stone firebox and storage circuit
The study views of a heater set between two brick arches, then the stone storage circuit built on site.
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Côte Chalonnaise | The insert becomes a masonry heater in Viré (71260)
In this article, discover our latest project using a Brunner HKD firebox coupled with a KMS Ortner heat store. As an option, we installed for the first…
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Not a single right angle: a heater and its bench modelled as one
A domed heater core, a bench that undulates to the wall, niches hollowed into the mass: a heater modelled from end to end, with no visible edge or joint.
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Heater no. 44: Right on the Spot, facing Mont-Blanc
The scene is set: a magnificent alpine chalet under construction, in an idyllic landscape with a splendid view of Mont-Blanc. Watching the snow through…
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A pale monolith in a Dijon house
A single rendered volume, from floor to ceiling, with its log niche at the foot and its rectangular glazed firebox: the heater treated as a section of wall.
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In a stone sheepfold, a horizontal firebox beneath a log-pole roof frame
A cream-rendered mass set against a dry-stone wall, beneath a roof frame of debarked logs: the heater brings the only straight line in the room.
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Bench of black glazed bricks, facing the valley
An ivory-rendered mass, extended by a long heated bench tiled with black glazed bricks, and a vertical niche cut into the body of the heater.
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Coloured stucco under a brick arch
A heater in anthracite grey stucco set under the brick arch of an old fireplace, on a plinth rendered in ochre and red, in a room floored with terracotta tiles.
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Self-build: the flue path laid bare
The flue path, visible before closing up: a coil of ceramic flue sections laid on the floor, connected to the firebox — the workings of a masonry heater in a single image.
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Heater no. 43: La ferme des Millirupétiens
A couple of city dwellers wanting to live in harmony with nature settled in the heart of the Morvan regional nature park, at Larochemillay. These friendly…
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Pale mass and bench, in a timber house in Gigny
Under an exposed roof structure, a stepped white rendered heater, with a heated bench topped by a separate slab and a log store built in under the seat.
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A see-through firebox between the dining room and the living room
A masonry heater set on the boundary between two rooms, with a horizontal see-through firebox: the same fire is watched from the table and from the sitting room.
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Building a heat-storage heater, slab by slab
Site view: the storage mass built in bonded refractory slabs, firebox in place and bench begun, before any cladding.
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Moulded bricks and first fire, in the middle of the build
The first fire in a heater built of yellow moulded firebricks, lit before the work was even finished — drying of the mass starts right there.
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Supported self-build: the heat-storage column in place
Supported self-build project: the ceramic heat-storage column assembled and strapped between two stone jambs, above the firebox.
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Teal stove tiles in moulded panels
A cladding of deep-green glazed stove tiles, moulded as arcaded panels, with matching band and cornice: the Kachelofen tradition, under old beams.
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Soft forms and granite shelves
A cream rendered volume with softened edges, a vaulted niche and polished granite shelves: a heater that plays on the contrast between matt material and lustrous stone.
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Heater no. 33: Curves and stove tiles
A masonry heater all in curves to replace the insert in this detached house in the Lyon area. This is a classic case among the requests we…
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Bagnolet: the heater before render, built in firebricks
A rare site view: the rounded firebrick mass, with its bench and firebox in place, before the finishing render is applied.
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Chequerboard of green and grey tiles, in Thoiry
A crown of chequered aniseed-green and marbled-grey tiles, set on a pale pink rendered mass: the colour comes in from the top.
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Panoramic tunnel: aged steel lintel and light render
A very elongated panoramic firebox, underlined by an aged steel lintel, in a light rendered mass set at the edge of a raised platform.
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A white column standing on its round base
A cylindrical masonry heater, rendered in matt white, whose arched firebox and circular base echo the curve of the body.
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Prefabricated elements and hand-laid stove tiles
The other way to build a masonry heater: ceramic elements moulded to size, assembled on site, then clad in stove tiles one by one.
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Before 3D: the wooden model
Every block cut to scale and numbered in pencil: before 3D modelling, heaters were approved on a wooden model placed on the table.
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A heater recessed in its niche, above two stone shelves
Rather than placing the mass in front of the wall, it was housed inside it: the firebox opens at the back of a masonry niche, above two stone shelves.
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Heater no. 15: A warm and cosy mountain chalet
A warm atmosphere at 1,500 m altitude in this old mountain chalet, fully renovated as new. The Alps are the favourite playground of…
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Kachelung: a round Swedish heater in white stove tiles
A cylindrical column fully clad in glossy white stove tiles, with moulded base and cornice: the round Swedish heater, assembled from a kit and clad on site.
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A heat-storage fireplace on a reed-prepared wall
A narrow vertical volume, rendered white, set against a reed wall ready for rendering: a fireplace that stores heat instead of sending it all up the flue.
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Heater no. 12: assisted self-build in the Kachelofen style
Self-build of a masonry heater in the Kachelofen style A fine example of assisted self-build for this masonry heater, clad in the manner of a Kachelofen. Near Orléans,…
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Masonry heater No. 4 built in bricks with an original flue path
A bespoke brick heater with an original design for a new build using the ‘Greb method’ in Saône-et-Loire. It is a classic case among the requests that…
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The first Finnish heater: a pale mass at the heart of the living room
The first Finnish-type heater built by the workshop, in 2010: a pale rendered mass set between the living room and the dining room, arched cast-iron door.
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A bread oven in raw earth, shaped by hand
A dome of raw earth and straw, built without a permanent mould and smoothed by hand: the oldest form of heat storage.
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First steps: a heater in small bricks that passes through two rooms
A masonry heater built in small firebricks, with a flue path that passes through two rooms, and a heated bench — built with the customer.
