It's not quite that bad - there's been a central heating system added
since then. I'm going to upgrade it to a combi that can supply the
kitchen hot water too, and get rid of at least one tank. But alas
there's no easy way of running pipework from the boiler in the kitchen
to the bathroom at the other end of the flat - it's all concrete walls
in between! 60s apartment blocks are very inflexible...