Horstmann Economy 7 Quartz Electric Water Heating Controller

The all time best selling water heating control; high accuracy quartz clock movement, battery back up to maintain settings and an adjustable boost timer - the standard by which all other heating controls are judged.

The Economy 7 Quartz is supplied with its standard wall box and can be used to replace all previous Economy 7 Quartz models without needing  any major re-wiring.

Quartz controlled clock

• Accurate to +/- ten minutes a year
• Summer and winter time settings instantly visible
• Rechargeable battery keeps time during power interruptions
• Allows one off peak setting per 24 hours
• Off peak indicator light

Boost timer

• Up to 60 minutes boost means extra hot water at any time
• ‘Boost on’ indicator light

Designed with both installer and user in mind

• Large terminals and back box
• Easy wiring harness
• Simple installation