



Horstmann BX2000 White Electronic Water Heating Boost Controller With 2 x Double Pole Isolator Switches For 24 Hour & Off-Peak Electricity Supply & 1 or 2 Hour Boost Time
BX2000
Electronic Water Heating Boost Controller – Dual Supply with 1 or 2 Hour Boost & Off-Peak Priority
This electronic boost controller is designed for use with water heating systems on both 24-hour and off-peak electricity supplies. It features two double pole isolator switches and prioritises off-peak usage automatically, making it ideal for single or dual immersion heater applications. With simplified wiring and clear indicators, it ensures safe, efficient, and user-friendly control of electric water heating.
- Off-Peak Priority Operation: Always gives preference to the off-peak supply, cancelling any selected boost as soon as off-peak power becomes available.
- Dual Supply Control: Accepts two incoming supplies and includes two double pole isolator switches—one for 24-hour, one for off-peak.
- Versatile Installation: Supports wiring for single, dual, or separate 3kW immersion heaters, all within a spacious standard-size wall box for easier connections.
- Selectable Boost Duration: Offers 1-hour or 2-hour boost options with dedicated indicator lights for each selection.
- Manual Boost Cancel: Includes a dedicated cancel button for boost override, offering flexible user control.
Technical Specification
- Power Supply: Dual (24-hour and off-peak)
- Control Type: 1 or 2 hour boost with auto off-peak override
- Switch Type: 2 x double pole isolator switches
- Boost Cancel: Manual button
- Indicators: Off-peak active, 1-hour boost, 2-hour boost
- Application: Suitable for 1 or 2 x 3kW immersion heaters
✅ Install this dual-supply boost controller for intelligent, user-friendly electric water heating control with off-peak energy savings!
Ean Code | 5015914302091 |
Product | Control |
Type | Water Heating |
Colour | White |
Mounting | Surface |
Programming | 24hr |
Supply Voltage | 240 V |
Timed/untimed | Timed |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.