off-peak periods and emit heat during the day. With a separately-metered
off-peak tariff the charging period is normally at night, but with some
systems a midday boost is required to ensure an even heat emission until
evening. However a day-time boost is not now normally available to new
domestic consumers. This off-peak tariff is known as 'Economy-?'.
Floor-warming installations
Floor-warming utilises the thermal storage properties of concrete — the
concrete floor of the building being heated by special cables. These cables are
embedded in the concrete screed just below the floor surface and when a
current is passe ...
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