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Abstract Sweeping of fireplaces The aim of the study is to obtain a data and knowledge base to provide an overview of how sweeping of fireplaces should be regulated, as well as mapping how chimney and fire place sweeping is regulated in other European countries, above all the Nordic and Baltic countries. Furthermore, it is desirable to look at existing research and investigate to which extent sweeping of fireplace will have a fire preventive effect. A literature review was carried out, searching for existing research that could be used to determine what should be viewed as best practice. In the literature review it became clear that sweeping of fireplaces is a topic with limited attention, and the literature was therefore insufficient, and no conclusion could be drawn based on this. Through contact with professional networks, a project carried out by the local sweeping service in Trondheim was found, which shed light on how sweeping of fireplaces affects the energy efficiency of a stove. If soot builds up on the inside of the fireplace, this will insulate the fireplace which in turn yields a lower energy output to the room. Another possible result of the insulating property of the soot is that the combustion takes place at a higher temperature, which makes the combustion cleaner and more complete, which in turn reduces the number of combustible particles in the smoke ducts. Without further testing, it is difficult to say whether the sum of these effects is positive or negative for the overall fire safety of the system.