The conversation around Europe's heat pump market centres on ambitious targets, policy timelines, and the race to 60 million units by 2030. But what does that mean in practice when it comes to actual heat pump installations?
In the EU, 85% of buildings were constructed before 2000, and roughly 75% are considered energy inefficient. Europe's heat pump growth is structurally tied to existing buildings, which means its transition to low-carbon heating is tied to the energy efficiency of retrofit installations.
Heat pumps are increasingly central to new construction, with 2030 marking the deadline for all new buildings to be zero-emission. But new builds only make up a fraction of the market. The volume and growth lie in building retrofit – existing buildings with fossil-based heating systems.
Currently, the renovation rates of older buildings are at 1%, which is well below the 3% required to reach the ambitious targets of 2030. The opportunity is huge, but so is the complexity.
Retrofit readiness is a competitive differentiator
Manufacturers with deep experience in water-based heating hold an advantage in retrofit installations. They understand how heat pumps work with radiators and how to equip installers with commissioning tools that shorten on-site decision-making. Products that tolerate the heat pump flow temperature demands of legacy radiators, integrate with existing controls, and come with clear commissioning guidance are better positioned for retrofit-heavy markets.
Simply put, heat pump retrofits address the larger share of European demand if they can deliver low-carbon heating performance without major system adaptation.
The execution challenge of heat pump retrofit
Replacing gas boilers in older buildings and homes is not a simple swap as these structures come with existing radiators, inherited pipework, and heating expectations shaped by decades of gas boiler operation.
Inherited systems create different requirements, changing what it takes to deliver the required heating performance. Scaling in retrofit-heavy markets goes beyond product capability. It demands repeatable system designs, efficient commissioning, and clear guidance on working with existing radiators, including when a heat pump can integrate with the existing hydronic heating system and when deeper building work is unavoidable. The ability to deliver consistent outcomes across variable building conditions is key where space constraints and dense urban settings are the norm.