"Anode" wrote in message
...

"Andy Hall" wrote in message
...
On Mon, 3 Jul 2006 17:32:47 +0100, Anode wrote
(in article ):

Is there some setup of a wet central heating system that will let
radiators
be warm most of the time, and not cycling between over-hot and
over-cold, as
mine are now?






I have a MAN Micromat boiler. It has a number of features which achieve
what
you are describing:

- Burner modulates from 3-30kW

- Pump modulates continuously from 20-100% of output

- External temperature sensor is used in calculation of heat requirement.

- Detection of flow and return temperatures.

The result of this is that during the period from autumn to spring, the
boiler runs almost continuously at low output with radiator flow
temperatures
in the region of 40-45 degrees, getting hotter only when the outside
temperature falls to a point that more heat output is required.

This is a high quality German designed and manufactured product. A
similar
range is made by Viessmann.

Expect to pay around £1500 for such a boiler.


Thank you for the information about the MAN Micromat, and the warning
about the price.

I shall get some details.

Regards, Anode.

http://www.eco-hometec.co.uk Same boiler.