"Christian McArdle" wrote in message
. net...
Thanks. I've got a price for a DPS Pandora £712-£941 depending on
fitted options. Still a little more pricy than the McDonald. Are
they worth it?

I don't know the McDonald. However, the DPS is a plate exchanger heat
bank,
rather than an immersed coil thermal store. I would only go for a plate
exchanger type.

THERMflow 210 Boiler Model
Combination Type c/w Lid
Drain & Thermometer Fitted
50mm Foam Lagged

Suitable for use with an open vented boiler.
Flow Rates: Store 80 degC - 20-25l/min @ 55 degC dependent upon ground water
temp.

£600 plus VAT

These have an immersed coil and can do DHW and CH. A plate heat exchanger
would give a higher flow rates. Also using a plate the store temp need only
be 75C, which is more efficient when using a condensing boiler.

The best is a hybrid of the two: a coil for low flows, such as basins and
sinks, and a plate for higher flows with the coil acting as a preheat.
Using this method the pump does switch is as often.