The UltraLowDust project aims at the demonstration of a European approach for ultra-low emission small-scale biomass combustion based on three novel technologies which cover the whole range of residential biomass heating applications. For pellet and woodchips combustion a new ultra-low emission boiler technology operating at almost zero CO, OGC and PM emissions will be demonstrated. Moreover, a new stove technology based on optimised air staging and an automated control system showing significantly decreased PM, CO and OGC emissions compared with present stoves will be introduced. For PM emission reduction in old and new logwood boilers, old stoves as well as boilers for non-wood biomass fuels, a new ESP system will be demonstrated. These three technologies shall, after successful demonstration, define a new state-of-the-art regarding ultra-low emission biomass combustion covering an intelligent combination of primary and secondary measures. The technologies will be demonstrated within field tests over two heating seasons. Moreover, the project aims at the development of market introduction plans for the new technologies which will be supported by a market study as well as techno-economic analyses and overall impact assessments based on the results of the field tests. Additionally, the project aims at the development of recommendations for future emission limits under consideration of the results achieved, which shall then be discussed with national and EU authorities active in legislation making. To reach these aims a consortium of partners from three EU-countries has been formed consisting of the manufacturers of the three key technologies, research institutions which will support the industrial partners with their expertise in biomass combustion, one partner who is active in the field of international networking and policy making as well as, as coordinator, an internationally recognised engineering company, experienced in market studies and technology assessments.