In order to make this work, you will have to turn the room stat up to max -
so that it never turns the boiler off, and so that the conservatory
continues to receive heat.
The trouble with this is that there will be no control over the conservatory
temperature. When it gets *too* hot, there will be nothing to turn the
A better scheme would be to zone the heating system - having a separate zone
with room stat in the conservatory. You can then heat the house and
conservatory independently without either getting too hot. If you use
programmable stats, you can even heat them at different times from each
other should you so wish.
[Have a look at the "S Plan Plus" details in
http://content.honeywell.com/uk/homes/systems.htm to see what I mean.
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