On Tue, 2 Nov 2004 18:33:41 -0000, "IMM" wrote:


"Christian McArdle" wrote in message
.net...
Was there any particular reason you fed the rads directly from the
primary?

Yes, the radiators are (or will be when I convert the loft) the highest
point in the system. This means that they require a sealed pressurised
system. It is actually possible to have a sealed pressurised system fed
from
the heat bank, but this requires 2 additional pumps and an additional
plate
heat exchanger. The boiler and cylinder are already in the loft and I
didn't
want additional tanks above, even if they could have been accommodated
somehow.

Pressurised thermal stores, where the cylinder is pressurised like an
unvented cylinder, are available.

But must be installed by an approved professional.



--

..andy

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