"Christian McArdle" wrote in message
et...
This is a DHW only heat bank. So you will be having a diverter valve for
either CH & DHW, with the CH running directly from the condensing boiler.

My original intention was to use no diverter valve, just 2 ports on every
circuit. Now, I'm not so sure. I may install a diverter valve for the hot
water and use 2 port valves for the heating sub circuits.

What kW rating is the coil?

I don't know. However, the cylinder appears to be made by Telford, so I
might have a look to see what their standard coils are rated at. I suspect
it will be less than the boiler's maximum output, hence why I wasn't too
concerned about priority operation.

Coil areas:

80 litre Telford Typhoon cylinder has: 1.2 squ metres coil surface area.
120 litre Telford Typhoon cylinder has: 1.55 squ metres coil surface area.
Calculated to give 12-16 minutes recovery time.

125 litre Tornado unvented cylinder has: 0.704 squ. metres coil surface
area.



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