Masonry cookstove
Heidi, masonry cookstove kit
Heidi is the lightest of the Tiileri masonry cookstoves: 450 kg, delivered as a kit, in a render or brick finish. It accepts the AirBox; the kit is available from €3,990.24 incl. VAT.
A masonry cookstove combines a cooking surface with a mass that stores the heat of the fire and then releases it into the room.
450 kg
catalogue weight
8.2 kW
nominal output
1 to 1.5 days
installation time (indicative)
Genuine Finnish masonry heaters since 1952
Tiileri, tradition and quality, exclusively from Cœur de Foyer.
Complete kit, with its assembly plans
From 450 to 2,240 kg of heat-storing mass
Gentle, lasting warmth: up to 53.7 h of heat release
Efficiency up to 91% (declaration of performance)
Made in Finland
Heat-storing stoves, standard EN 15250
Tiileri bricks and stoves since 1952
Specifications
Catalogue weight
450 kg
Product reference sheet, 09/09/2026
Dimensions
710 × 530 × 900 mm
Product reference sheet, 09/09/2026
Cooking equipment (hob, oven)
Hob [TO BE COMPLETED: oven not documented by the factory]
Product reference sheet, 09/09/2026
Nominal output
8.2 kW
Product reference sheet, 09/09/2026
Stored energy and heat release time
[TO BE COMPLETED: not documented by the factory]
Efficiency
[TO BE CONFIRMED]
Sources disagree
CO emissions
0.11% (1,375 mg/Nm³)
Product reference sheet, 09/09/2026 — DoP
Flue gas temperature
[TO BE CONFIRMED BY THE FACTORY: do not reuse the value in the September 2025 brochures, which is wrong]
Maximum wood load
8 kg (4 loads of 2 kg)
Product reference sheet, 09/09/2026
Log length
25 cm
Product reference sheet, 09/09/2026
Required flue class
T400
Product reference sheet, 09/09/2026
Flue outlet
[TO BE COMPLETED: not documented by the factory]
Safety distances to combustible materials
Below the cooking surface: 50 mm at the back and sides. Above the cooking surface: 500 mm at the sides and 1,000 mm upwards. 50 mm to the floor
Product reference sheet, 09/09/2026 — DoP
AirBox
Available
Product reference sheet, settled on 09/09/2026
Standard
EN 15250:2007
Product reference sheet
Indicative installation time
1 to 1.5 days
Factory workbook (October 2025) and records of 15/09/2026: range, indicative, not a guarantee
Warranty
5 years on Tiileri parts (materials, workmanship, operation); 2 years on doors, glass and metal parts
Manufacturer, warranty text of June 2026 — Warranty and after-sales
Standard EN 15250:2007 covers domestic heating appliances fired by solid fuel with slow heat release, that is heat-storing stoves. The declaration of performance (DoP) is the document in which the manufacturer declares the performance of the appliance measured under this standard. Flue class T400 means a flue designed for operating temperatures up to 400 °C.
AirBox. The AirBox ducts combustion air straight to the firebox. It is available on the Heidi, contrary to what the factory catalogue of January 2024 says. Listed price: €403.20 incl. VAT, AirBox page on coeurdefoyer.fr (in French).
How many hours of fire for your home?
Find your heated floor area and your home’s insulation: the chart gives the hours of fire per day in severe cold.
Indicative figures for severe cold. The thermal study of your project takes precedence.
Versions
Prices as listed on coeurdefoyer.fr on 16/09/2026.
Before you order
The supporting floor
450 kg rests on a small footprint. The load-bearing capacity of the floor or slab is checked for each project; we do not publish a general specification.
The flue
Have the connection to your flue, existing or new, approved before ordering.
Installation
Allow 1 to 1.5 days of installation as a guide. You can have the Heidi installed by a lead installer or build it yourself.
Key points
- 450 kg masonry cookstove, 710 × 530 × 900 mm, the lightest model in the range.
- 25 cm logs, T400 flue.
- Render or brick finish, AirBox available.
- 1 to 1.5 days of installation as a guide.
Sources and verification
- Weight, standard, AirBox: Tiileri France product reference sheet (09/09/2026), as used in the brief of 15/09/2026.
- Dimensions, output, wood load, log length, flue class: Tiileri France product reference sheet (09/09/2026), factory price list cross-checked with the Finnish catalogue of 01/01/2024.
- CO emissions, safety distances: declaration of performance RRF-50 23 6334, shared by the Helmi and the Heidi, which belong to the same test family (confirmed by the manufacturer on 17/09/2026).
- Prices and versions: coeurdefoyer.fr, recorded on 15/09/2026, category re-checked on 16/09/2026.
- Installation times: ranges from the factory workbook ‘Données catalogue France’ (October 2025) and the scoping records of 15/09/2026, upper value included; aligned across all pages on 25/09/2026 (Guiom’s decision).
- Page checked on 16/09/2026; translated on 25/09/2026.