The intelligent, sustainable use of raw materials, especially a renewable and natural raw material such as wood as a regenerative energy source, brings many advantages. Heating with wood is good for the climate and the environment and thus has a sustainable positive effect. Modern, energy-efficient fireplaces, such as those offered by Schiedel, enable solutions with very low emissions and high levels of efficiency. Heating with wood satisfies many of people's needs and, by using a natural, renewable raw material that is both regional and cheaply available, reduces the burden on the environment. Thanks to the high efficiency of modern fireplaces, energy costs can be noticeably reduced. Thanks to its broad versatility, wood as an energy source is crucial to achieving sustainable climate and energy goals.