Horstmann Economy 7 Quartz Datenbogen

Designed for use with Economy 7 off peak rate overnight 
electricity, the Economy 7 Quartz is the standard by which 
all other water heating controls are judged and is the all-
time best seller in water heating controls.

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Quartz controlled within 10 minutes a year

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Rechargeable battery keeps time during power 
interruptions

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Summer and winter time settings instantly visible

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Large terminals and back box for easy installation

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Indicator lights show whether on-peak or off-peak power 
is being used

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Up to 60 minute boost means extra hot water at any time

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Industry standard wall box and connections