Which approach and steps to replace individual gas boilers in the building stock (especially in old buildings)?



The 28 May 2021 from 10:00 until 12:00




In the framework of the Decarb City Pipes 2050 project, Energy Cities organises discussions every last Friday of the month on specific topics linked to the decarbonisation of the heating and cooling sector. These sessions will allow exchanges and capitalisation of learnings and know-how between the partner cities (Bilbao, Bratislava, Dublin, Munich, Rotterdam, Vienna and Winterthur) and a limited number of external cities. Experts, such as the advisory board members, will also be invited to share their insights.

This session will focus on the approaches and steps to replace individual gas boilers in the building stock (especially in old buildings). A number of cities’ strategies to decarbonise heating in existing buildings rely on energy efficiency measures and the replacement of fossil-fuel boilers by heating systems powered by green energy, such as heat pumps and district heating.

If this replacement or connection to district heating can be done relatively easily in individual houses, the challenge is bigger for multi-apartment buildings in which each flat is equipped with an individual gas boiler. In particular, it requires important piping work at building level. Different approaches to optimise the connection to district heating can be possible, such as the centralisation of the building heating system (in the cellar or attic for instance) or the connection to district heating at flat level with the installation of individual substations.

This session will present different solutions and approaches to tackle the replacement of individual gas boilers in existing multi-apartment buildings.

For more information, please contact Marie Royer