The masonry workers here advised laying a self-regulating heating cable in the gap between the insulation and the facing bricks. That if necessary could be dried masonry.
Has anyone done so? Cable is not cheap, I have doubts.
I've never heard of such a thing. It's kind of a fantastic idea.
The idea is delusional, but I did not notice a big contradiction. Problems may arise in the lining, and so the heating of the street in winter time.
And when it burns out, how will you change it?