Science Buddies: "Ask an Expert"

Okay so I work maintenance for a hotel and had an interesting conversation with my boss this morning he advised me to fill the hot tub using the hose and so basically my question is this will a hot tub or body of water heat quicker if you fill it faster or will it make a difference so we have a hot tub here and we can fill it either with one hose or two the boiler heat exchange system is running as soon as the water level gets above 1 foot. So my question is this will the water heat faster because it's being filled quicker or will it heat at the same time because the thermal energy putting into the system is the same? He believes that the hot tub will end up at temperature faster if you fill it faster and I say it doesn't make a difference because the thermal energies are the same

Basically this, total water volume, fill rate, amount of heat added is constant (boiler heat exchanger) only variable is fill rate.

Hi,

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A. Norman