Wow, ten computers...impressive :o)
It must be cool to heat your lounge but what about the noise ?

And yes, with only One Presscot P4 on 20/7, I can gain 2°C in my room

It helps a bit if we turn off all the peripherals and the screen when we\'re not using the computer. During the winter months I don\'t feel at all guilty about the heat generated by the computer because it warms the room and I can have the radiator turned permanently off.

In the summer, as you say Tony, the arguments are different.

Am I right in thinking that flat screens, though more expensive to buy, use less electricity to run?

Another thing to bear in mind is the cost in energy, materials and transport to produce the computer and get it to our home. I wouldn\'t be surprised if this cost was as great as the cost of subsequently running it 24/7 for several years. One could argue that the best thing is to use the machine\'s capabilities to the full by working it hard for as many years as possible instead of replacing it when it\'s obsolete but hardly used.

One can also save on the total energy input by replacing the computer and peripherals not at the first opportunity, but at the last. Or by ensuring that someone else gets the use of an older but working machine.

> CPDN? I havent got a general preferences option just \'commands\'

Sure you do. Everyone has. They\'re on the cpdn servers, under \"Your Account\".
<a href=\"http://climateapps2.oucs.ox.ac.uk/cpdnboinc/prefs.php?subset=global\"> This</a> is a direct link to it.

Have you set enough disk space in your \"general preferences\" in your CPDN account ?