I had a colleague back in the very late 90s that lived in a typical British semi-detached house. Under the stairs was a cupboard against the external wall. He decided to make that his server room with a rack and "cheap" second hand kit.

To cool it, he drilled through the external brick wall several times and fitted exhaust fans.

His hall sounded like standing behind a 747.

If it rained, he often ended up tripping the fuses.

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