Airtight Calcias Steel and Cast Iron Stove

Calcias is unique: an elliptical shape that brings warmth and modernity; high energy performance thanks to the cast iron hearth; and on the practical side, a steel stake to accommodate your logs. Here, the other models of the new range of contemporary steel wood stoves.

Reference: P648803
  • logo Ecolabel A
  • logo Eco Design
  • logo Flamme Verte 7 étoiles
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Why this product?
Adjustable secondary air

Secondary air protects the glass against smoke and soot deposits. It ensures combustion of volatile materials. The adjustable secondary air flow can adapt the unit’s operation to high draft conditions.

Airtight unit RT2012 / RE2020 compatible

Ideal for low-energy consumption construction (BBC), RT2012 or RE2020. The unit is equipped with a central fresh air input on a connection nozzle:
* no air intake in the room,
* direct connection possible to crawl space or external air intake.

Clean glass

The clean glass system slows deposit buildup on the glass. An air supply above the glass creates a protective curtain. The preheated air is propelled along the glass. It triggers combustion of gas and volatile materials, thereby protecting the glass against smoke and soot deposits.

High density vermiculite

Lining of the combustion chamber with removable parts in more resistant high density vermiculite (750 kg/m³). The thermal properties of vermiculite improve combustion quality and appliance performance.


The unit operates with regular loading of small quantities of wood. This operating method is particularly high-performing and respectful of the environment.

Post-combustion system

Injection of pre-heated air into the combustion chamber The supplementary air intake in the back enables hydrocarbons to be destroyed at a high temperature. Complete combustion reduces pollution.

Optimal power
9 kW
Heat output adjustment (kW)
6 - 11,5
Heating volume (m³)
Heating surface (m²)
Flamme verte (environmental label)
7 stars
Useful efficiency (%)
77 %
Seasonal efficiency (%)
CO (%)
0,10 %
CO (mg/Nm³)
Dust (mg/Nm³)
20 mg/Nm³
GOC (mg/Nm³)
NOx (mg/Nm³)
Energy Efficiency Index (EEI)
Flue gas mass flow (g/s)
Flue gas temperature (°C)
Logs 25, Logs 33, Logs 50 cm
Maximum log length (horizontally)
50 cm
Flue exit
top, back
Flue diameter (mm)
150 mm
Flue exit height from floor (mm)
Direct Air-supply (mm)
80 mm
Dimensions (mm)
H 850 x W 700 x D 400
Weight (kg)
145 kg
Cast Iron + Steel
EN 13240
5 years
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