Anybody else notice they seem to be void of snow ie they stay clear of settled snow on roads and pavements. How come? Presumably made so they can be located and lifted in an emergency...?
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man hole covers and snow Q?
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Posted 1 year ago #
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simple the contents that flow through them are warm enough to melt the snow........
Posted 1 year ago # -
Warm bathwater innit?
Posted 1 year ago # -
Manholes cover a few things. Sewers. Cable ducts. Stuff like that. All of which are likely to have a reasonably nice warm void below them, hence heating the metal lid. A lid that was permanently thawing the snow above it through any other means would be quite the miracle of thermodynamics, or be constantly powered electrically.
Posted 1 year ago # -
Of course cos hot air rises... I would have never thought of that honest! Cheers
Posted 1 year ago #
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