"Andy Hall" wrote in message
...
On Thu, 2 Sep 2004 17:14:28 +0100, "IMM" wrote:


"Andy Hall" wrote in message
.. .
On Thu, 2 Sep 2004 15:05:07 +0100, "Christian McArdle"

For a DHW system, the objective is to get as much heat as possible in
the shortest time possible into the store. The heatbank does this
well and runs the boiler at full tilt for this short time. That is
certainly more efficient than going via an inadequate coil which
results in slower transfer of heat and cycling. The objective is
different, to CH though.

With CH, the objective is to match the load to the boiler,

Which a weather compensator does with a heat bank between rads and
boiler.
he large volume of water being heated makes it more efficient.



Sigh.

snip