HI

Doctor Drivel wrote:

"Adrian" wrote in message
...

Questions:
You have a thermal store/heat bank heated via a heat pump. It serves CH
and DHW via a plate heat exchanger. Is that so?

Not quite.

The heat store is simply a large tank containing water that's circulated
through the radiators / dhw tank. The circulating water is heated by a
heat pump (ground source)


Is it a pressurised thermal store? Or is it open vented - uses an F&E
tank to top it up?

No - not pressurised - it's part of the open f&e-tank-fed heating circuit.

Adrian