production process is based on treating the wood in especially high temperature (170 – 220° C) while in steam environment. The heat treating changes the cellular structure of the wood, extracting all moisture, bacteria and acids. Such “heated” wood is very unsuitable soil for all types of fungi, mold and rot, thus making it more resistant to the environmental impact. Heat treatment allows complete extraction of resin, which means that heat treated softwood planks can be successfully used not only as flooring, but even for sauna and bathroom finishing. Heat treatment improves wood’s resistance and immunity to environmental impact. For example, the durability of heat-treated birch and pine is comparable to that of oak. Furthermore, thermo-wood is characterized by low moisture holding capacity. Increased durability of thermo-wood is obtained without any chemical substances. The production and finishing processes do not involve any chemical substances that might be potentially harmful to the wood or to humans. It is recommended to use natural wood oil or wax to treat thermo-wood, adding beautiful sheen and preventing moisture absorption. In addition, such treatment helps to protect the wood from UV radiation, which may cause gradual loss of the beautiful brown hue of the wood.