is it simple plug in to quartz wall box

Mine was replacing a mechanical Newlec timer which I believe is an older version of the Horstmann Quartz: for the Newlec the colour codes are identical, just unplug the old timer connectors and plug in the new ones. http://www.horstmann.co.uk/water-heating.php is your friend here - the installation guides for the Quartz and the Electronic 7 are on there and show identical pin-outs. Disclaimer: I am not an electrician: you should exercise due diligence before proceding!

Can this item replace an old 'horstmann e7 bx' unit?

I used it as a direct replacement for an existing 30 year old Horstmann E7 unit but I can’t say whether it was a ‘bx’ unit.

Does anyone know if this unit will replace an old Electra tech control panel? I only need to use it for setting the hot water not radiators

I don't know if it will replace 'an old Electra tech control panel' but you can certainly set this unit for water heating only for any chosen time period/duration with summer/winter auto time change.There is also a Boost selector for use at anytime outside your 'set' period. Hope it helps!!

Can i replace my old horstmann electronic 7 with this

You can replace an old Horstmann electronic 7 with the new model. It fits directly into the existing backplate fittings.

Horstmann Electronic 7 Water Heater Multi

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Description

⏳ Upgrade your water heating game—precision, power, and effortless control in one sleek device!

INSTANT HEAT BOOST - Need hot water now? Activate the boost button for an extra hour of heating on demand.
SEAMLESS SEASONAL SYNC - Automatically adjusts for daylight saving time, so you never have to reset your timer again.
EFFORTLESS INSTALLATION - Direct replacement for older models with no rewiring or back box changes—upgrade in under 5 minutes.
PRECISION TIMING MASTERY - Set your water heating schedule down to the exact minute—no more guesswork or wasted energy.
ENERGY SMART ECONOMY 7 CONTROL - Optimizes off-peak heating periods to save you money while ensuring hot water when you need it.

The Horstmann Electronic 7 Water Heater Controller is a cutting-edge immersion heater timer designed for Economy 7 and standard off-peak water heating systems. Featuring precise minute-level programming, automatic daylight saving time adjustments, and a convenient boost function, it offers superior energy efficiency and user-friendly installation. Compatible with existing setups, it ensures optimal hot water availability while reducing energy waste.

Specifications

ASIN	B0031SCQMI
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	175,834 in DIY & Tools ( See Top 100 in DIY & Tools ) 475 in Water Heaters & Parts
Colour	Multi
Customer Reviews	4.5 4.5 out of 5 stars (523)
Date First Available	17 May 2012
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Included Components	ELECTRONIC7
Item Package Quantity	1
Item Weight	400 g
Item model number	Electronic 7
Manufacturer	Horstmann
Part Number	Electronic 7
Plug profile	Wall
Power Source	AC
Product Dimensions	12.6 x 17.4 x 7.2 cm; 400 g
Style	Indoor Installation
Voltage	230 Volts (AC)

Reviews

M**F

18.01.2018

A**R

16.04.2024

K**G

19.07.2022

M**D

4.01.2026

L**T

27.03.2026

L**T

3.10.2020

C**Y

11.01.2019

P**O

27.09.2023

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