"Andy Hall" aka Matt wrote in message
...
On Mon, 3 Jul 2006 18:42:06 +0100, Doctor Drivel wrote
(in article ews.net):


"Andy Hall" aka Matt wrote in message
...
On Mon, 3 Jul 2006 17:59:36 +0100, Tony Bryer wrote
(in article ):

On Mon, 3 Jul 2006 17:32:47 +0100 Anode wrote :
Is there any setup that would give me the necessary heat output but in
a
more balanced way, so the radiators will be on for longer but at an
appropriately lower temperature, with the period in the cycle when the
radiators are off being correspondingly much reduced?

The magic word is compensator - either
sensing load or weather and turning
the flow temp up or down as necessary.
They are available as an optional
extra on a number of the better boilers.

True...

Not to be confused with external boiler
management boxes which use an
external temperature sensor.
These are alleged to make some improvement in
terms of energy use in that they provide
the heating system with "advanced
knowledge" of changes in outside temperature,
but they drive the boiler on
and off to do so which doesn't really address
the initial requirement.

Matt, what ********. It does address the intial requirement in that the
rads are at the ideal temperature dictated by outside weather conditions.
Sirry irriot. It does this by switching the burner using electronic
anti-cycle control. Sirry irriot.


No. The radiator temperatures will cycle
up and down as the burner is turned
on and off by the external controller.

Within the range dictated to by the controller.

The correct solution is to use
something that is integral and analogue to the
main boiler controller.

Matt, a heat bank with a Grundfoss Alpha is the way. A continuous supply of
on-tap water for the CH. If the house only needs 1.5Kw of heat, the CH
circuit via the auto modulating pump, just takes the heat from the heat bank
store it wants. If it needs 0.5kW for the CH it takes it and boiler
cycling. No cycling or modulating of burners. Simple, easy, efficient.