Ключевые слова: apartment, assemble, assembly, build, building, building site, craftsman, demolition, diy, doityourself, east germany, gdr, handicraft, heating, heating costs, heating valve, home improvement, house, house building, inside, installation, interior, interior fittings, line, modernise, modernization, new, old, old building, pipe, pipes, radiator, reconstruction, refurbishment, renovate, renovation, rusty, shell, shutoff valve, symbolic image, valve, wall, water, water pipes, work,