Horstmann Economy 7 Quartz Immersion Control

Economy 7 Quartz - Immersion Heater Control 

The standard by which all other water heating controls are judged, the Economy 7 Quartz is the all-time best seller in water heating controls.

• Quartz controlled to ten minutes a year
• Rechargeable battery keeps time during power interruptions
• Up to 60 or 120 minutes boost means extra hot water at any time
• Indicator lights show whether on-peak or off-peak power is being used
• Summer and winter time settings instantly visible
• Large terminals and back box
• Easy wiring harness and simple installation
• Designed with both installer and user in mind