Wate Immersion Heater

[Scoosh79]

Hi Folks

Looking for some guidance on my immersion heater. I live in an all electric flat with storage heating (economy 7) I got a new bathroom suite fitted a while ago and noticed that my hot tap was leaking at the bath, as we always use the electric shower and never the bath I just turned the hot water tap off at the tank. Today I repaired the tap but when I turned on the water from the tank nothing came through, I opened up the lid of the tank and there was no water at all but when I pushed the ball cock down the water started to flow through and out the tap, probably just stuck so that resolved the water issue, the tank is only at the top so how does that heat the water? There is only one electric feed at the bottom so does this mean the water leaves the top tank and travels around a coil and straight to the tap? Internet seems to think I should have two tanks with two electric feeds? It's a Duncan Low if that helps?

 

[CWHEATING]

Yeah the hot water outlet of the cylinder is at the top and feeds your hot water taps. Cold water is fed in to the tank from the bottom. As the water is heated it’s rises to the top of the cylinder and as we all know heat rises I believe it’s called water displacement.
The one cylinder with one emmersion heater will be sufficient because you have an electric shower.