Hot water cylinder? ______________

[Loubanez]

Hello, I'm not a plumber but just curious as I'm an electrician who's coming towards the end of a rewire, The house is a new build out in the sticks. Originally the plan was to have a oil or gas fired boiler supplying CH and UFH, due to cost issues he has decided to install a unvented indirect cylinder and use only this for HW and UFH 6 zone manifold, with the immersion heating the loop, doesn't seem right to me and I'll have to somehow alter wiring as I've wired for a boiler setup, Is this ever a done thing?
Thanks

 

[ShaunCorbs]

You sure it's not a elec thermal store ?

 

[Loubanez]

Could be!? Not familiar with those tbh, I havnt actually spoke to the plumber only the owner and what he's told me,

 

[ShaunCorbs]

Could be!? Not familiar with those tbh, I havnt actually spoke to the plumber only the owner and what he's told me,

Unvented won't work

Thermal store will as it works in reverse to a cylinder eg the heating water is in the body of the cylinder where on a normal cylinder the hot water would be

 

[Loubanez]

Right okay think I'm with it, how long would the immersion take to heat the cylinder? I'm thinking of having the immersion on a timer at night as it's the only heat source and hopefully this would be enough for a day of HW and CH usage?

 

[ShaunCorbs]

No wouldn't be enough for heating could possibly be for hot water in the summer nut not for heating

Best option put it on a timer let them set the times they want (you can set a basic one like a standard gas heating sys) and then have a boost function as well just incase

 

[Loubanez]

No wouldn't be enough for heating could possibly be for hot water in the summer nut not for heating

Best option put it on a timer let them set the times they want (you can set a basic one like a standard gas heating sys) and then have a boost function as well just incase

Put immersion on timer for heating?

 

[ShaunCorbs]

Put immersion on timer for heating?

Yes do you understand?

 

[Loubanez]

Yes I think so, I'm just thinking how to incorporate this into his UFH room stats/programmers. Am I right in thinking once a room stat calls for heat it will take an age for the room to heat up?
Thanks for your help so far.

 

[ShaunCorbs]

Yes I think so, I'm just thinking how to incorporate this into his UFH room stats/programmers. Am I right in thinking once a room stat calls for heat it will take an age for the room to heat up?
Thanks for your help so far.

You need to keep the store hot all the time so in reality 5.30 am to 10.30pm for the store depending on house usage

Then your heating / ufh times

 

[Loubanez]

Ok Thankyou, I can work with this and I know what I'm dealing with now thanks for all your comments and help.