wrote in message
...
On Thu, 19 Feb 2004 12:52:40 -0800, "John Stumbles"
wrote:

Some systems with thermal stores are arranged rather as the reverse of
what
you're suggesting: the thermal store has a heat exchanger from which the
space heating is run. This arrangement tends to be implemented more where
the space heating is true radiators i.e. radiant emitters e.g. underfloor
heating which require lower temperatures of circulating water than so
called
'radiators' which are mostly convectors and want higher temperatures.
(You
with me so far? :-)

Other conventional ('radiator' based) systems dispense with the always-on
bathroom rad in various ways (which have been discussed at length not to
say
ad nauseam in uk.d-i-y, as Mr Google will no doubt tell you if you ask
nicely :-)

I'm not familiar with the systems Mr Stumbles describes, but it sounds
interesting. I may look it up later.

An integrated thermal store or heat bank. Conventional rads can, and are,
easily run from an integrated thermal store. The whole store can be
maintained at a high temperature. Also sections of the store can be
maintained at different temperatures for differing applications: top section
at 80C for DHW, middle sections at 75C for upstairs rads, bottom section at
a lower temperature, 45C, for UFH. The bottom section of a thermal store,
that supplies the heating, can have the temperature varied, dictated by an
outside temperature weather compensator.