ELI5- Why kitchen sinks take more time to get hot or cold than bathroom sinks?

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ELI5- Why kitchen sinks take more time to get hot or cold than bathroom sinks?

In: Engineering

Has nothing to do with kitchen or bathroom, only depends on the distance the water has to travel from the heater to the output.

Where I’m living in South Korea, the sink instantly provides hot water. In the bathroom, I have to let it warm up. This is because the hot water pipes are directly under my kitchen sink.

This is likely has more to deal with your house in general. In most US homes, there is a central water heater. The further away from the water heater, the longer it takes for hot water to reach the faucet. If a bathroom and kitchen faucet are the same distance from the water heater, the kitchen will actually warm up faster as they almost always have higher outputs (Measured in GPM, gallons per minute); Meaning more water flows out of the kitchen faucet than the bathroom faucet.