Heat storage stoves in Kácov

The renovation of the traditional building required a sensitive approach that respects the character of the structure while also meeting current demands for comfort and energy efficiency. The authors of the project chose a heating system using massive accumulating stoves, which serve as a central heat source, but not in the traditional sense, rather as a technologically advanced whole that connects radiant heat with hot water distribution.

"We wanted to create a solution that would work reliably, efficiently, and at the same time naturally fit into the character of the half-timbered house. Wood is a logical choice here, and accumulation makes the whole system sensible," says stove maker Martin Kasl from Kamnářství Pohoda.

The foundation of the implementation is the Hoxter WHE 37/50 stove insert, which serves as the primary source of thermal energy. Its combustion chamber is designed for high efficiency and stable operation, while the integrated exchanger cleaner minimizes maintenance needs and contributes to long-term constant combustion parameters.

Water as a Heat Storage

The fundamental element of the entire accumulation system is water. The stoves are connected to a large accumulation tank, where the thermal energy generated by burning wood is stored. This principle allows for the separation of heat production from its distribution – enabling heating in an optimal mode and using the heat gradually according to the current needs of the house.

The underfloor heating follows the accumulation tank, ensuring uniform heat distribution within the interior. A sophisticated control system dynamically adjusts the performance of the circulation pumps based on the outdoor temperature. This brings stable thermal comfort without fluctuations, overheating, or cold zones.

From a construction perspective, the stove insert offers the option of lateral flue gas exhaust, which significantly expands the layout possibilities of the stove. This detail enabled the efficient connection to a draft accumulation system made of heavy fireclay elements. Thus, the stoves fulfill not only the hot water function but also serve as radiant accumulating heaters, which gradually provide heat to the interior with high comfort.

"A significant advantage is the combination of two principles – hot water and accumulation. The user gains not only control over the distribution of heat in the house but also retains the quality of radiant heat, which is irreplaceable in living spaces," adds Martin Kasl.

This combination represents a crucial benefit for the entire solution. While water ensures efficient heat transfer and regulation within the heating system, the massive accumulating mass of the stoves prolongs its radiation into the interior even long after the fuel has burned out. The result is an environment that feels natural, stable, and comfortable – without the need for constant fueling or regulation.


text Alena Křečková
photo Kamnářství Pohoda
www.banador.cz