As heatwaves become more frequent and severe, not everyone is equally equipped to deal with the extreme temperatures. In particular, the phenomenon known as "boiler houses" has drawn attention in France, highlighting a growing crisis in summer energy insecurity. These are homes that rely heavily on electric heating systems, which can become dangerously inefficient or even fail during periods of high heat, leaving residents without adequate cooling. The issue is particularly pronounced in working-class neighborhoods, where financial constraints often limit access to air conditioning or other cooling technologies. Many residents in these areas rely on electric fans or basic window units, which are insufficient during prolonged heatwaves. This disparity underscores a broader concern about energy access and the ability of low-income households to cope with climate-related challenges. In response to this crisis, local and national authorities in France have been urged to address the infrastructure and financial barriers that prevent vulnerable populations from staying safe during heatwaves. Some initiatives are beginning to focus on improving insulation in homes, providing subsidies for cooling devices, and increasing public awareness about the risks of extreme heat. This situation is part of a larger conversation about climate resilience and social equity, as countries around the world grapple with the increasing frequency of extreme weather events. In France, the challenge of ensuring that all citizens have access to safe and reliable cooling during heatwaves is becoming an urgent priority.