A comment
It has already been three years since I built a house of ceramic blocks (510 mm), in general I am satisfied with the blocks, my wall looks like this: from the inside there is facade plaster with inclusions of polystyrene foam (10-20 mm), then the actual ceramic block (510 mm), then the ventilation a gap of 40 mm and the final stage - facing brick (85mm).
The main thing when building ceramic blocks is their correct laying, because the solution does not fit into the vertical joints between the blocks, respectively, with uneven laying, most of the advantages of these blocks are nullified. My workers did it mediocre, so I had to additionally make warm facade plaster from the inside.
I have gas heating, a boiler of 28 kW, at minus thirty on the street, in the house on the ground floor + 18C, in the attic + 20C, by the way, I also have to heat the bathhouse, so there are some heat losses. In general, the house is comfortable, if I had to choose the material for the walls again, I would choose ceramic blocks again.
pros
Good heat-saving characteristics, construction speed, normal price.
Minuses
High-tech material, requires professional masonry.