--- Wouter van Ooijen <wouter@voti.nl> wrote:

> > > That's more or less how a CV works, but I have never seen 
> > this for tap water.
> > 
> > CV?  What's that?
> 
> Sorry, Dutch: Centrale Verwarming: central (hot water) heating.
> 
> Wouter van Ooijen
> 
> -- -------------------------------------------
> Van Ooijen Technische Informatica: www.voti.nl
> consultancy, development, PICmicro products
> docent Hogeschool van Utrecht: www.voti.nl/hvu
>  

One of the main differences with the system we use in the US is that
the radiators are usually all in parallel so every heater has it's own
manual or thermostatic valve. In the US all radiators in a zone are
usually connected in series, radiator size, water flow and pipe
dimensions are ( or should be ) chosen so temperature in all rooms in a
zone are close to the same. each method has its advantages , the US
system being cheaper the other better controlled.

Peter van Hoof 
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