"Robert Green" wrote in
message

I am wondering if prolonged cold spells substantially
reduce the temperature of the water entering a house from
the city water service . . .

It depends upon where you live and the source of the city water.

If you live somewhere that has wide swings of temperature from season to
season the water temperature will also vary and the anount of variation
would change with ground water depth. If the source is surface water as
opposed to ground water it will vary even more. FWIW, the water in Honolulu
(ground water) varies about 2 degrees between winter and summer.

I would think that temperature variation also depends upon how the water is
stored, transmitted and the overall rate of use. For example, if you live
somewhere that uses ground water but provides a head to it via elevated
storage tanks, the ground water temperature is going to change in the
storage tank, colder in the winter, warmer in the summer; however; if the
water in the tank is being used and replenished rapidly, that variation
would be minimized.

I get my water (central Florida) from my well which is about 110'. At the
moment, I set my single handle shower mixer at about 10:30; come August, it
will be at 1:30 so there is considerable temperature variation in the
source, no idea how much in degrees.


--

dadiOH
____________________________

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