Against the background that about 40% of the total energy consumption is attributed to the production of heat and hot water, the activities of European chimney-sweeps in the field of environmental protection and energy conservation are of particular importance. In addition to the metrological monitoring of emissions (dust, carbon monoxide, nitrogen oxides, etc.) at fireplaces on the basis of legal limit values in the field of environmental protection also reviews and activities related to energy efficiency (monitoring of efficiencies, exhaust, radiation and distribution losses, Insulation, pump performance and control, hydraulic balancing, energy efficiency labeling, etc.). In addition, the chimney-sweep industry in Europe also performs energy advice in various forms. This can be done in the planning phase in order to achieve the installation of the most efficient and correctly dimensioned heating system. Other useful measures can also result from an energy consultation, as well as funding opportunities can be shown. But during the operational phase, chimney-sweeps will also advise on the proper, low-emission and energy-efficient operation of fireplaces and, in the case of solid fuel fireplaces, on the choice of a suitable fuel, its correct storage and proper loading. By consulting the chimney-sweep, operator behavior can be sustainably influenced in favor of energy-efficient and low-emission operation of heating systems and fireplaces.