immersion question

fpmcaf

Just have a quick question about the bath / sink elements for the immersion.
The problem is that in the winter with the heating on the water in the shower stays hot for long enough.
But now in the summer we have the immersion on for 1.5 hours and still it wouldn't stay hot for long enough.
There is a bath and sink option on the immersion, and I switched it to bath because I assume that heats the full tank where as the sink option just fills part of the tank?
I did have it on sink for a few days and it wasn't staying hot for long either.
Why is the heating warming it for long enough but the immersion isn't?
Could it be that the bath / sink thing isn't actually wired, but the heating is wired to the bath element?
I probably got all the details wrong, but I thought that was the way it worked?

Anyway the main point is could someone tell me what they think might be wrong? so that I can go and tell the landlord to get the right thing fixed. Thanks.

Andrea B.

Could it be that the bath / sink thing isn't actually wired, but the heating is wired to the bath element?

Doesn't really make sense? In brief, your central heating has a pipe which passes through your water cylinder and transfers heat to your water within the cylinder. Your bath/sink elements are two electric elements immersed in cylinder. No connection between two systems.

Either way, it could be the setting on the thermostat in element housing is set too low. If so, you would get hot water, but it would be switching off faster, so bringing you to a luke water stage fairly rapid.

DublinDilbert

fpmcaf wrote: »

still it wouldn't stay hot for long enough.

Can you elaborate on what you mean by "still it wouldn't stay hot for long enough?"

Do you mean that the coper cylinder cools down over a number of hours / minutes after you turn of the immersion?

Do you mean that if you have a shower after the immersion has been on you run out of hot water??

Is your coper cylinder insulated / lagged??

fpmcaf

Either way, it could be the setting on the thermostat in element housing is set too low. If so, you would get hot water, but it would be switching off faster, so bringing you to a luke water stage fairly rapid.

That sounds like the problem, can I check the thermostat setting myself, or does it have to be done by an electrician?

Can you elaborate on what you mean by "still it wouldn't stay hot for long enough?"
Do you mean that the coper cylinder cools down over a number of hours / minutes after you turn of the immersion?
Do you mean that if you have a shower after the immersion has been on you run out of hot water??
Is your coper cylinder insulated / lagged??

The water doesn't say hot while the water is running (mainly). Also if I have the immersion on at night it wouldn't be hot in the morning. Well it is hot but only a small bit of hot water.
I think that it is lagged but it seems like a pre-installed insulation not the old type lagging jacket. Its a new house so I think they are standard?

Thanks for your replies....

gazelec

You can check the setting on the thermostat by removing the cover on the tank,its probably a black or blue cover with the cable going into it, once its off you will see a little dial with an arrow,try setting the arrow to the max (think its about 90) and see how that goes

10-10-20

Can you check if any of the radiators are getting warm? I just wonder if you are getting a flow through the central heating coil which is pulling the heat out.

I get a similar issue when my gas burner fails... the valve to the tank and radiators remain open and the flow takes the heat out of the tank and sends it to the radiators.

Just a thought.