Hot water keeping

[Livingston]

Hi All,
I have moved to a new house and then find that there is a "cylinder" that I have no idea have to use it.
Before moving to this house, I just use a combi boiler.

I turned on the hot water with Drayton for the shower two days before, and then I turn it off after I finished.
And I find that even if I forget to turn the hot water on, I still have hot water and event more than 50 hours.
I have no idea where the hot water come from.

Does those hot water come from the "cylinder"?
I just worry it will cost me lots of gas or electricity, any one can help?

and I find that is a switch beside the "cylinder", should i need to turn it on?

thank you.

 

[terryplumb]

Your cylinder stores hot water. The water can be heated by your gas boiler ,using the programmer to set pre determined times to heat the water automatically ,or you can manually turn it on and off as you wish.
The cylinder also has electric immersion heater ,and the wall switch turns on the electric supply to that. As electricity is more expensive than gas ,the electric immersion heater is probably best used as a back up.

 

[Livingston]

Thank you.
But my situation is I have turned the hot water on manually two days ago and turn it off after I finished shower, I think it only around 4-5 hours.

I find that I still have hot water without turn on the hot water, it that normal?

Thank you.

 

[terryplumb]

The cylinder is well insulated and will retain the hot water temperature. A couple of days without re heating would probably not leave you with enough hot water for another shower though.

 

[Livingston]

Thank you Terryplumb
So, for my situation, it is more likely the hot water retain in cylinder that make heat it two days ago.

I have double check that the switch beside cylinder have not been turning on, is that the only way to heat the water by electric?

Thank you

 

[mcprinter]

I have a similar system but much more basic and older.
A Megaflo will give you a good flow of hot water. Mine doesn't. Should be better than your combi.

Set the Hot Water Timer (in your 3rd picture) to come on for an hour in the morning and an hour in the afternoon.
See how that goes and reduce the time until you find the good spot.
Depends how many people in the house and how often/when they shower, use the bath, wash up, etc.
For extra hot water requirements you can always use the boost function on the timer.

If your boiler goes faulty you can use the electric switch to heat the cylinder.

Instructions for your timer

https://www.gotogasdocs.co.uk/f/m/Drayton/Discontinued%20Products/Tempus%206%20Installation%20&%20User%20Instuctions.pdf

 

[terryplumb]

Thank you Terryplumb
So, for my situation, it is more likely the hot water retain in cylinder that make heat it two days ago.

I have double check that the switch beside cylinder have not been turning on, is that the only way to heat the water by electric?

Thank you

Yes ,electric switch is for electric immersion heater element.
Programmer controls gas boiler.