But they are increasingly an alternative in our country thanks to bioconstruction and its high efficiency that allows to reduce energy consumption and save costs. But what’s the key? Mateu Ortoneda, specialist and author of the manual Construction of masonry stoves, tells us: “The secret is to get the smoke out as cold as possible to the surface and that the heat stays on the stove. Here lies its efficiency.” And for this, the smoke must be accompanied by a shot with special characteristics.
These stoves take better advantage of the heat because they accumulate it and propagate it slowly, even if there is no more wood. If it is also accompanied by materials such as clay mortars, this effect is enhanced by the thermal inertia of the clay itself and comfort is increased by its ability to regulate the relative humidity of the environment. The image that accompanies this article corresponds to a thermal mass stove built by Mateu Ortoneda in a workshop and in which ecoclay clay mortars are used.
Ortoneda points out that ” clay is basic. Mortars regulate the relative humidity of the environment in the exact proportion. This contributes to the houses being warmer in winter and colder in summer. A house will always be more pleasant if you use clay plasters.” And summarizes in three the keys to bet on thermal inertia stoves:
They dose the heat. The stove saves the heat and doses it. 10 kilos of oak firewood have 4,000 kilocalories, the key is to use it better than conventional stoves. Improve air quality. No positive ions are released into the atmosphere. Radiation heat. The one used in bioconstruction since with less temperature a greater comfort is achieved.
Thermal inertia stoves adapt to any decorative style. Keep in mind that a ton of material is used for its construction so they can only be installed in homes that support this weight. It is not a recommended system for weekend home, although there are options that would allow its use. Ortoneda recommends for example the heat shield or the heat column.