eli5, how does a city hot water system work? How does hot water remain heated while traveling through pipes to our faucets?

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Hello everyone, recently my city has been doing some repairs to the city’s hot water system and i was without hot water for about 3 weeks.

That got me wondering, how exactly does this work? I read something about a heating agent but i don’t know what that means. And how does the water stay hot while travelling from the place it gets heated to our homes?

Thanks!

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17 Answers

Anonymous 0 Comments

The pipes are insulated and the water is under high pressure so it doesn’t spend that long in the pipes. And when the hot water arrives at your house it doesn’t go to your tap, it is used to heat your cold drinking water, and then it’s returned to the boilers to be reheated.

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