"Chris J Dixon" wrote in message
...
IMM wrote:

Thermal stores are available for far less than £700.

Recommendations?

On price? The Albion Mainsflow DHW Mainflow can be obtained for around £500
(this has an internal heat transfer coil), as can the Range Cylinders
thermal store.

£500 for an Ariston unvented cylinder is at the bottom end of the quality
range.

Whilst on the subject, scaling seems to be an issue, at least in
the minds of blurb writers. Any useful experiences?

You should put on the cold feed a phosphor decaling canister. This applies
to unvented cylinders, thermal stores, heat banks and combi's.

With a heat bank using an external plate heat exchanger, it is a matter of
valving off , removing the plate and descaling it. A very easy almost DIY
job.