wrote in message
...
On Wed, 12 Nov 2008 23:53:44 -0000, "dennis@home"
wrote:



wrote in message
. ..
On Wed, 12 Nov 2008 22:39:52 -0000, "dennis@home"
wrote:



"Roger" wrote in message
. co.uk...
The message
from "John" contains these words:

If it isn't in the warmest area the heating won't turn on even
though
the area you want warm has cooled below the desired temp.

What on earth are you on about?

Does seem to be complete nonsense.

Shame that its not.

If you put the stat in the coldest place the temperature has to drop
below
the desired temp in the warmer areas before the heating will turn on. In
fact the lounge could sit at a lower temperature for weeks at a time
without
the heating switching on if you put the stat in a cooler area.


I'm trying to understand what you say above . Surely if the stat is
placed in the coldest place and the temp in that room drops below what
the stat is set at the heating will come on ,thereby heating the
lounge as well.

Suppose you put it in a bedroom and set it to 15C.
The outside temp drops to 16C.
The house will drop to 16C.
The heating will not turn on, however long it sits at 16C.
Putting an ordinary room stat in the coldest place is a sure way to save
fuel as the heating doesn't come on as often, you will need thermal
underwear though.

So you think if the outside Temp is 16C then the inside temp will also
be 16C ?

Why not? Do you really want to make it more complicated than it is, you
don't appear to understand the basics without adding in other heat sources.


If you want to be warm you need to have the stat turn the heating on when
the temperature drops below the warmest temperature you want, normally the
lounge or bathroom. So it needs to be set to the warmest temperature and
its
no good putting it in a room where it never gets that warm as it will
always
be on.

You have just said " It will always be on"

Well just think for a change.
If the stat is set to 20C and the TVR in the cooler room is set to 18C the
stat will always be on.

That's the trouble with CH most people don't understand anything about it.
Are you one of the people that think CH will heat up faster the higher you
set the thermostat?