Switching from electric heaters to heat pumps is very easy for the grid, but not at all easy in existing homes. Central heating needs water pipes, which traditi

Switching from electric heaters to heat pumps is very easy for the grid, but not at all easy in existing homes. Central heating needs water pipes, which traditional electric heating doesn't have. Adding the pipes is going to be a major hassle. I'm not sure if there is a major difference in insulation. Old houses are in Germany are not great, new houses usually are, and it's probably the same in France.