How does hot water get into the cold water line?

There’s too much water pressure Otherwise hot water will flow into the cold water pipes. Many experts believe that such a problem may be due to the thermostat in the immersion heater. The thermostat can fail and this leads to hot water overheating and boiling over into the cold-water tap, making the stored water warm.

Which side is shell and tube?

One flows through the tubes (the tube side) and the other flows outside the tubes but inside the shell (the shell side).

How does a heat exchanger transfer heat?

In a heat exchanger, heat is transferred between hot and cold fluids through a solid wall. The fluids may be process streams or independent sources of heat such as the fluids or sources of refrigeration. Heat transfer may be degraded in time by corrosion, deposits of reaction products, or organic growths.

What is the difference between mixed and unmixed fluids in cross flow heat exchanger?

What is the difference between mixed and unmixed fluids in cross-flow? In a counter flow heat exchanger, the hot and cold fluids enter the heat exchanger at opposite ends and flow in opposite direction. But in case of cross flow heat exchanger, the two fluids usually move perpendicular to each other.

Why does my water run hot then cold?

If you’ve noticed that your hot water is suddenly turning cold after a very short amount of time, the most likely cause is a broken dip tube inside your hot water heater. And when that happens, you’ll get lukewarm water delivered to you soon after you start using hot water.

Why is my hot water turning cold?

Hot Water Goes Cold Quickly Because Of A Burned out heating element. Faulty or burned out heating elements is one of the main reasons why your hot water goes cold quickly. Old or burned out elements account for the reduction of hot water and will cause your hot water to go cold quickly or not have any hot water at all.

How hot does a heat exchanger get?

A mid-efficiency gas furnace can raise the temperature to 170F, but a high-efficiency model can only raise it to 150F. There are top quality furnaces that can raise it to 200F.