For sale is an authentic, highly reliable Horstmann Economy 7 Quartz electro-mechanical water heating controller. Built with a robust 24-hour clock dial and a built-in quartz battery backup reserve, this industry-standard device is engineered to automatically activate your water cylinder immersion heaters during cheaper night-rate electricity hours to ensure a full tank of hot water is waiting for you every morning.
An absolute bargain trade-quality replacement controller to restore your hot water system on a budget!
Condition Report:
Functional Status: Fully power bench-tested and 100% operational hardware rail. Tested in our workshop diagnostics bay, the mechanical clock dial rotates smoothly and accurately tracks time.
Cosmetic Condition: Used state. The white high-impact housing and clear plastic dial cover display minor, typical superficial surface marks, faint handling scuffs, and light storage scratches from previous household wall installation.
Included Items: Main Horstmann Economy 7 Quartz control unit only as pictured. (No wall backing box, paper manuals, or mounting screws are included unless pictured).
Key Technical Product Features:
Automatic Off-Peak Tracking: Precision clock mechanism switches on overnight heating elements during cheap-rate electricity hours to maximize your savings.
Mechanical 2 Hour Boost Timer: Easy-to-use rotary boost control allows you to trigger on-demand hot water during the day for up to 120 minutes before automatically shutting off to prevent accidental energy waste.
Quartz Battery Reserve Backup: Long-lasting internal battery backup keeps the clock tracking time accurately for up to 6 days during localized power cuts, removing the need to manually reset the clock.
Single or Dual Element Control: Fully compatible with standard single-element systems or dual-immersion tanks (where it automatically switches peak/boost to the short upper element and off-peak to the long lower element).