Does a home hot water heater/tank that is connected to a town water system with a tower water...

[yeto]

Does a home hot water heater/tank that is connected to a town water system with a tower water tank have to work harder in the winter time versus a home system that is connected to a well because in the winter the water coming into the house from the town water system will be colder versus water coming into the house from a well?

Since I have connected to the town water system my hot water does not seem to recover as quickly.

Thank you,
yeto

 

[Mliu]

Of course, if the water supply is at a lower temperature, the water heater will have to put more energy (kW or BTUs) into the water to bring it up to the set temperature. That is basic thermodynamics. Temperature is simply our way of measuring the energy content of a given mass of matter (in this case, water).

The question is, what is the temperature difference between your well water and the municipal water? Once you know that, you can calculate how much additional energy the water heater will have to supply.