On Wed, 3 Aug 2005 00:01:16 +0100, "Doctor Drivel"
wrote:


UFH is not simple if you want it to work properly.

It is perfectly simple - even the Romans managed it. It requires
some careful planning to get the sizes right but that's all.

An outside weather
compensator to anticipate temperature gains and losses is essential for good
comfort conditions, and economy.

No it isn't - its usually used as a plumbers bodge to get around the
inability of the self proclaimed "heating specialists" (aka plumbers)
to do simple maths.

As is a Grundfoss Alpha auto variable speed pump.

How do all those systems without one work?

or
use mechanical Danfoss variable flow stats, as in BES, and eliminate the
electric solenoids and stats.

You have just got back from the pub again I presume?.

Have the weather compensator set the temperature of a thermal store and use
an Alpha pump to pump this water to the manifolds.

On second thoughts you are still there.


--
Peter Parry.
http://www.wpp.ltd.uk/