"hugh" ] wrote in message
...
In message om,
"dennis@home" writes


"Dave Liquorice" wrote in message
hill.co.uk...


The radiators/remainder of heating system needs a constant pressure.

Why?

Because the water will flow faster and faster through the remaining path.
If you are unlucky it will make it noisy.
It also results in a lower temperature drop across the radiator, which
makes condensing operation more difficult and wastes energy.
An alternative is a variable head pump that slows down.

IMO the "you must have a radiator always on" is just because of the
inadequate control systems fitted.
If you only have one room stat then you lose all control if the radiator
can be turned off by another means.
If you turn the radiator off the heating will run when it isn't needed.


If you turn the radiator off your are a ****wit and get what you deserve.

I think you would be surprised by how many people don't know what the
relationship between the room stat and the radiator is.