Identify Hot water cylinder please (Ed.)

[fixitflav]

I’ve read somewhere this evening, that all that’s needed is another tank in the loft (do I still need this as it’s hot water only?) and a feed from the tank to the return and a vent from the flow. Is that’s all that’s needed?

And would I definitely need another tank or can I just use the one I have as it’s only hot water and not mixing DHW and CH?

I’m going down a right rabbit hole researching all this

From a quick look on the web it seems Primatics are still available, complete with foam insulation. I don't know what the pros think of them, but a direct replacement is an option.
Does the back boiler give some space heating? If so I guess you want to keep that.
If you change to a conventional cylinder you need a header tank for the primary circuit (as others have said).

 

[polesapart]

That is basically what I want to do, but if that’s the case the fire downstairs can no longer be used, is that correct?

No, fire could be used, subject to the above.
The fire will then just have an extra lump of metal behind it, albeit a hollowed out one with a bit of residual water in it. So long as it is not hermetically sealed no problem with heating it to 400C or whatever a coal fire achieves.

You might want to get a HETAS guy to look at it, if only for peace of mind.

 

[Westy23]

Amazing, thank you. We definitely will get someone round