[Cob] Radiant heat floors

[jane at kirstinelund.dk]

>
> In the European Union, PEX is also the standard used for all potable
> cold and hot water systems, since the EU banned PVC due to its highly
> toxic quality.  Manufacturers give the "low" lifespan of 20 years for
> PEX, but when embedded and protected from UV exposure one could expect
> it to last indefinitely.
>
Well, sorry folks - if the EU banned the use of PVC they have forgotten to
tell the europeans about it. PVC is still the standart material for pipes,
at least here in Denmark. It is possible to get PE pipes at well assorted
stores but there isn't any public debate about it that I know of.