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@Ivor Windybottom I don’t understand your maths. Are each of your zones fully insulated and separate entities ie if you are heating one...
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not quite. Whilst it is true that the kWh output to the house will invariably need to be slightly higher if maintaining a steady higher...
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@Ivor Windybottom have you tried it without zoning? How do you know that this approach is saving vast amounts of energy out of interest...
