Originally posted by DBMandrake
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In any case I feel the issue is moot. Who would have a setback temperature with evohome, even if away from home of less than 8-10C? To allow a building to fall to such a low temp you're going to have many other problems with heat expansion/contraction (e.g. plaster cracking, brick movement), and the only time I can think of - when doing building works - you'd probably have drained the system.
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