✨ New Arrivals Just Dropped!Explore
HomeStore
Secure E7+ Smart Immersion Heater Controller SCE100-000 — Bluetooth App Economy 7 Off-Peak Tariff Hot Water Programmer Horstmann Replacement
Secure E7+ Smart Immersion Heater Controller SCE100-000 — Bluetooth App Economy 7 Off-Peak Tariff Hot Water Programmer Horstmann Replacement
The Secure E7+ (SCE100-000) is a smart-capable immersion heater controller designed to manage one or two 3kW immersion heating elements, making the most of off-peak electricity tariffs such as Economy 7, Economy 10, Octopus Go, and other time-of-use rates. The successor to both the Horstmann Electronic 7 and the Economy 7 Quartz, the E7+ is a direct plug-in replacement for all legacy Horstmann and Secure Economy 7 controllers — the included adaptor plate allows retrofitting without rewiring. A Bluetooth-enabled app (iOS and Android) provides local control and schedule management from any smartphone within the property; adding the optional SCW100-000 Wi-Fi adaptor (sold separately) extends that control to anywhere in the world, with full 7-day programming across 48 time periods and dynamic tariff compatibility. A tamper-proof programme security feature makes the E7+ particularly suitable for landlord and social housing installations. 7-year no-quibble warranty.
ℹ E7+ and Off-Peak Tariffs — How It Works
The E7+ is designed specifically to heat water during the cheap-rate periods of Economy 7, Economy 10, and similar time-of-use tariffs — when electricity costs a fraction of daytime rates. By default, it heats from 02:15 to 07:15 AM (a standard Economy 7 off-peak window), giving a full tank ready for morning use. The schedule can be adjusted to match any tariff's specific cheap-rate window. With the Wi-Fi adaptor, the E7+ can also receive dynamic tariff signals and schedule heating automatically around the cheapest periods of the day — maximising savings as variable-rate tariffs become more widely available.
The E7+ is designed specifically to heat water during the cheap-rate periods of Economy 7, Economy 10, and similar time-of-use tariffs — when electricity costs a fraction of daytime rates. By default, it heats from 02:15 to 07:15 AM (a standard Economy 7 off-peak window), giving a full tank ready for morning use. The schedule can be adjusted to match any tariff's specific cheap-rate window. With the Wi-Fi adaptor, the E7+ can also receive dynamic tariff signals and schedule heating automatically around the cheapest periods of the day — maximising savings as variable-rate tariffs become more widely available.
Features & Benefits
✔ Plug-in Horstmann Replacement — Adaptor Plate Included
The E7+ is fully interchangeable with all existing Horstmann and Secure Economy 7 controllers. The included adaptor plate allows it to mount directly in place of the original unit using the same wiring connections — no rewiring, no chasing new cables, no additional back boxes. For an electrician, retrofitting an existing Economy 7 installation with the E7+ takes minutes. This makes it the straightforward upgrade path for any property currently running a Horstmann Electronic 7, Economy 7 Quartz, or equivalent.
✔ Bluetooth App — Local Control Without Wi-Fi
The E7+ connects via Bluetooth to the Secure app (iOS and Android) without requiring any Wi-Fi connection, hub, or gateway. Within the property, the homeowner can view and adjust the off-peak heating schedule, launch a boost, check energy consumption data, and enable or disable the programme security lock — all from their smartphone. This makes the E7+ a meaningful step up from a basic mechanical timer even in properties with unreliable internet, or for tenants who would prefer not to give landlords Wi-Fi access to their router.
✔ Optional Wi-Fi Adaptor — Full Remote Control
The optional SCW100-000 plug-in Wi-Fi adaptor (sold separately) transforms the E7+ into a fully remote-controlled smart hot water system — no hub or gateway required, just the property's broadband router. With Wi-Fi, the app unlocks full 7-day programming with up to 48 time periods and compatibility with dynamic/agile electricity tariffs that change price throughout the day. Remote access lets the homeowner boost hot water heating before returning home, or check the tank status from anywhere.
✔ Manual & Programmable Boost
The manual boost button on the front panel provides an instant top-up without disturbing the programmed schedule — selectable for 30 minutes, 1 hour, or 2 hours. The programmable boost function goes further: rather than heating the entire tank from cold during the off-peak period, it can be programmed to heat only a portion of the tank at a set time each day — matching the volume of hot water to the household's actual usage pattern and avoiding heating water that will simply cool unused in the cylinder overnight.
✔ Controls One or Two 3kW Immersion Heaters
The E7+ is rated for up to 13A at 230V AC — suitable for immersion heaters up to 3kW. It can control a single immersion element (the most common domestic installation) or two separate 3kW elements, with each heater programmed independently for maximum flexibility. Twin-element cylinders often have an upper element for quick top-up heating and a lower element for full-tank heating — the E7+ can manage both, scheduling each element to the appropriate tariff period.
✔ Tamper-Proof Programme Security — Landlord Ready
The programme security feature locks the E7+'s settings so they cannot be altered by the occupant — the schedule programmed by the installer or landlord remains in place. This is specifically useful in social housing, HMO, and rental properties where the landlord is responsible for ensuring adequate hot water provision and wants to prevent tenants from overriding the off-peak schedule and creating unnecessarily high electricity bills. The app retains access for the authorised installer or property manager.
✔ Energy Consumption Monitoring via App
The Secure app reports energy consumption in kWh for both boost periods and off-peak scheduled heating separately, allowing the homeowner to track usage patterns and identify further saving opportunities. Seeing the kWh cost of each boost versus the off-peak schedule provides practical insight into whether the existing programme is correctly matched to the household's hot water demand.
✔ Same App as C1727 & H3747 Thermostats
The E7+ uses the same Secure app as the C1727 and H3747 smart-capable programmable thermostats — properties with both heating and hot water Secure controls can manage everything through a single application. Battery back-up maintains the correct time and programme settings for approximately 2 years in the event of a power cut, preventing the controller from resetting to a default schedule after a mains interruption.
Technical Specifications
| Manufacturer / Part No. | Secure (Horstmann Controls) — SCE100-000 |
| Product Name | E7+ Smart Immersion Heater Control |
| Contact Rating | 13A 230V AC — suitable for immersion heaters up to 3kW |
| Contact Type | Micro-disconnection on control |
| Supply | 230V 50Hz |
| Immersion Heaters Controlled | One or two 3kW elements (each programmable independently) |
| Programming (standard) | 3 on/off periods (6 daily time periods) — off-peak scheduling |
| Programming (with Wi-Fi adaptor) | Full 7-day — up to 48 time periods — dynamic tariff compatible |
| Connectivity | Bluetooth (local app control, no Wi-Fi needed) + optional SCW100-000 Wi-Fi adaptor |
| App Compatibility | iOS and Android — same app as C1727 and H3747 thermostats |
| Boost Options | Manual: 30 min / 1hr / 2hr; Programmable daily boost |
| Operating Temperature | 0°C to 35°C |
| IP Rating | IP30 |
| Dimensions (H × W × D) | 170 × 115 × 60mm (excluding rocker switch) |
| Colour | White thermoplastic |
| Battery Reserve | Approx. 2 years (maintains time and programme during power cuts) |
| Compliance | BS EN / EN 60730-1; BS EN / EN 60730-2-7; ETSI EN 300 328; ETSI EN 301 489-1/17 |
| Legacy Replacement | Direct plug-in replacement for all Horstmann and Secure Economy 7 controllers (adaptor plate included) |
| Warranty | 7 years — no quibble |
$42.99
Original: $122.82
-65%Secure E7+ Smart Immersion Heater Controller SCE100-000 — Bluetooth App Economy 7 Off-Peak Tariff Hot Water Programmer Horstmann Replacement—
$122.82
$42.99More Images
Secure E7+ Smart Immersion Heater Controller SCE100-000 — Bluetooth App Economy 7 Off-Peak Tariff Hot Water Programmer Horstmann Replacement
The Secure E7+ (SCE100-000) is a smart-capable immersion heater controller designed to manage one or two 3kW immersion heating elements, making the most of off-peak electricity tariffs such as Economy 7, Economy 10, Octopus Go, and other time-of-use rates. The successor to both the Horstmann Electronic 7 and the Economy 7 Quartz, the E7+ is a direct plug-in replacement for all legacy Horstmann and Secure Economy 7 controllers — the included adaptor plate allows retrofitting without rewiring. A Bluetooth-enabled app (iOS and Android) provides local control and schedule management from any smartphone within the property; adding the optional SCW100-000 Wi-Fi adaptor (sold separately) extends that control to anywhere in the world, with full 7-day programming across 48 time periods and dynamic tariff compatibility. A tamper-proof programme security feature makes the E7+ particularly suitable for landlord and social housing installations. 7-year no-quibble warranty.
ℹ E7+ and Off-Peak Tariffs — How It Works
The E7+ is designed specifically to heat water during the cheap-rate periods of Economy 7, Economy 10, and similar time-of-use tariffs — when electricity costs a fraction of daytime rates. By default, it heats from 02:15 to 07:15 AM (a standard Economy 7 off-peak window), giving a full tank ready for morning use. The schedule can be adjusted to match any tariff's specific cheap-rate window. With the Wi-Fi adaptor, the E7+ can also receive dynamic tariff signals and schedule heating automatically around the cheapest periods of the day — maximising savings as variable-rate tariffs become more widely available.
The E7+ is designed specifically to heat water during the cheap-rate periods of Economy 7, Economy 10, and similar time-of-use tariffs — when electricity costs a fraction of daytime rates. By default, it heats from 02:15 to 07:15 AM (a standard Economy 7 off-peak window), giving a full tank ready for morning use. The schedule can be adjusted to match any tariff's specific cheap-rate window. With the Wi-Fi adaptor, the E7+ can also receive dynamic tariff signals and schedule heating automatically around the cheapest periods of the day — maximising savings as variable-rate tariffs become more widely available.
Features & Benefits
✔ Plug-in Horstmann Replacement — Adaptor Plate Included
The E7+ is fully interchangeable with all existing Horstmann and Secure Economy 7 controllers. The included adaptor plate allows it to mount directly in place of the original unit using the same wiring connections — no rewiring, no chasing new cables, no additional back boxes. For an electrician, retrofitting an existing Economy 7 installation with the E7+ takes minutes. This makes it the straightforward upgrade path for any property currently running a Horstmann Electronic 7, Economy 7 Quartz, or equivalent.
✔ Bluetooth App — Local Control Without Wi-Fi
The E7+ connects via Bluetooth to the Secure app (iOS and Android) without requiring any Wi-Fi connection, hub, or gateway. Within the property, the homeowner can view and adjust the off-peak heating schedule, launch a boost, check energy consumption data, and enable or disable the programme security lock — all from their smartphone. This makes the E7+ a meaningful step up from a basic mechanical timer even in properties with unreliable internet, or for tenants who would prefer not to give landlords Wi-Fi access to their router.
✔ Optional Wi-Fi Adaptor — Full Remote Control
The optional SCW100-000 plug-in Wi-Fi adaptor (sold separately) transforms the E7+ into a fully remote-controlled smart hot water system — no hub or gateway required, just the property's broadband router. With Wi-Fi, the app unlocks full 7-day programming with up to 48 time periods and compatibility with dynamic/agile electricity tariffs that change price throughout the day. Remote access lets the homeowner boost hot water heating before returning home, or check the tank status from anywhere.
✔ Manual & Programmable Boost
The manual boost button on the front panel provides an instant top-up without disturbing the programmed schedule — selectable for 30 minutes, 1 hour, or 2 hours. The programmable boost function goes further: rather than heating the entire tank from cold during the off-peak period, it can be programmed to heat only a portion of the tank at a set time each day — matching the volume of hot water to the household's actual usage pattern and avoiding heating water that will simply cool unused in the cylinder overnight.
✔ Controls One or Two 3kW Immersion Heaters
The E7+ is rated for up to 13A at 230V AC — suitable for immersion heaters up to 3kW. It can control a single immersion element (the most common domestic installation) or two separate 3kW elements, with each heater programmed independently for maximum flexibility. Twin-element cylinders often have an upper element for quick top-up heating and a lower element for full-tank heating — the E7+ can manage both, scheduling each element to the appropriate tariff period.
✔ Tamper-Proof Programme Security — Landlord Ready
The programme security feature locks the E7+'s settings so they cannot be altered by the occupant — the schedule programmed by the installer or landlord remains in place. This is specifically useful in social housing, HMO, and rental properties where the landlord is responsible for ensuring adequate hot water provision and wants to prevent tenants from overriding the off-peak schedule and creating unnecessarily high electricity bills. The app retains access for the authorised installer or property manager.
✔ Energy Consumption Monitoring via App
The Secure app reports energy consumption in kWh for both boost periods and off-peak scheduled heating separately, allowing the homeowner to track usage patterns and identify further saving opportunities. Seeing the kWh cost of each boost versus the off-peak schedule provides practical insight into whether the existing programme is correctly matched to the household's hot water demand.
✔ Same App as C1727 & H3747 Thermostats
The E7+ uses the same Secure app as the C1727 and H3747 smart-capable programmable thermostats — properties with both heating and hot water Secure controls can manage everything through a single application. Battery back-up maintains the correct time and programme settings for approximately 2 years in the event of a power cut, preventing the controller from resetting to a default schedule after a mains interruption.
Technical Specifications
| Manufacturer / Part No. | Secure (Horstmann Controls) — SCE100-000 |
| Product Name | E7+ Smart Immersion Heater Control |
| Contact Rating | 13A 230V AC — suitable for immersion heaters up to 3kW |
| Contact Type | Micro-disconnection on control |
| Supply | 230V 50Hz |
| Immersion Heaters Controlled | One or two 3kW elements (each programmable independently) |
| Programming (standard) | 3 on/off periods (6 daily time periods) — off-peak scheduling |
| Programming (with Wi-Fi adaptor) | Full 7-day — up to 48 time periods — dynamic tariff compatible |
| Connectivity | Bluetooth (local app control, no Wi-Fi needed) + optional SCW100-000 Wi-Fi adaptor |
| App Compatibility | iOS and Android — same app as C1727 and H3747 thermostats |
| Boost Options | Manual: 30 min / 1hr / 2hr; Programmable daily boost |
| Operating Temperature | 0°C to 35°C |
| IP Rating | IP30 |
| Dimensions (H × W × D) | 170 × 115 × 60mm (excluding rocker switch) |
| Colour | White thermoplastic |
| Battery Reserve | Approx. 2 years (maintains time and programme during power cuts) |
| Compliance | BS EN / EN 60730-1; BS EN / EN 60730-2-7; ETSI EN 300 328; ETSI EN 301 489-1/17 |
| Legacy Replacement | Direct plug-in replacement for all Horstmann and Secure Economy 7 controllers (adaptor plate included) |
| Warranty | 7 years — no quibble |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Secure E7+ (SCE100-000) is a smart-capable immersion heater controller designed to manage one or two 3kW immersion heating elements, making the most of off-peak electricity tariffs such as Economy 7, Economy 10, Octopus Go, and other time-of-use rates. The successor to both the Horstmann Electronic 7 and the Economy 7 Quartz, the E7+ is a direct plug-in replacement for all legacy Horstmann and Secure Economy 7 controllers — the included adaptor plate allows retrofitting without rewiring. A Bluetooth-enabled app (iOS and Android) provides local control and schedule management from any smartphone within the property; adding the optional SCW100-000 Wi-Fi adaptor (sold separately) extends that control to anywhere in the world, with full 7-day programming across 48 time periods and dynamic tariff compatibility. A tamper-proof programme security feature makes the E7+ particularly suitable for landlord and social housing installations. 7-year no-quibble warranty.
ℹ E7+ and Off-Peak Tariffs — How It Works
The E7+ is designed specifically to heat water during the cheap-rate periods of Economy 7, Economy 10, and similar time-of-use tariffs — when electricity costs a fraction of daytime rates. By default, it heats from 02:15 to 07:15 AM (a standard Economy 7 off-peak window), giving a full tank ready for morning use. The schedule can be adjusted to match any tariff's specific cheap-rate window. With the Wi-Fi adaptor, the E7+ can also receive dynamic tariff signals and schedule heating automatically around the cheapest periods of the day — maximising savings as variable-rate tariffs become more widely available.
The E7+ is designed specifically to heat water during the cheap-rate periods of Economy 7, Economy 10, and similar time-of-use tariffs — when electricity costs a fraction of daytime rates. By default, it heats from 02:15 to 07:15 AM (a standard Economy 7 off-peak window), giving a full tank ready for morning use. The schedule can be adjusted to match any tariff's specific cheap-rate window. With the Wi-Fi adaptor, the E7+ can also receive dynamic tariff signals and schedule heating automatically around the cheapest periods of the day — maximising savings as variable-rate tariffs become more widely available.
Features & Benefits
✔ Plug-in Horstmann Replacement — Adaptor Plate Included
The E7+ is fully interchangeable with all existing Horstmann and Secure Economy 7 controllers. The included adaptor plate allows it to mount directly in place of the original unit using the same wiring connections — no rewiring, no chasing new cables, no additional back boxes. For an electrician, retrofitting an existing Economy 7 installation with the E7+ takes minutes. This makes it the straightforward upgrade path for any property currently running a Horstmann Electronic 7, Economy 7 Quartz, or equivalent.
✔ Bluetooth App — Local Control Without Wi-Fi
The E7+ connects via Bluetooth to the Secure app (iOS and Android) without requiring any Wi-Fi connection, hub, or gateway. Within the property, the homeowner can view and adjust the off-peak heating schedule, launch a boost, check energy consumption data, and enable or disable the programme security lock — all from their smartphone. This makes the E7+ a meaningful step up from a basic mechanical timer even in properties with unreliable internet, or for tenants who would prefer not to give landlords Wi-Fi access to their router.
✔ Optional Wi-Fi Adaptor — Full Remote Control
The optional SCW100-000 plug-in Wi-Fi adaptor (sold separately) transforms the E7+ into a fully remote-controlled smart hot water system — no hub or gateway required, just the property's broadband router. With Wi-Fi, the app unlocks full 7-day programming with up to 48 time periods and compatibility with dynamic/agile electricity tariffs that change price throughout the day. Remote access lets the homeowner boost hot water heating before returning home, or check the tank status from anywhere.
✔ Manual & Programmable Boost
The manual boost button on the front panel provides an instant top-up without disturbing the programmed schedule — selectable for 30 minutes, 1 hour, or 2 hours. The programmable boost function goes further: rather than heating the entire tank from cold during the off-peak period, it can be programmed to heat only a portion of the tank at a set time each day — matching the volume of hot water to the household's actual usage pattern and avoiding heating water that will simply cool unused in the cylinder overnight.
✔ Controls One or Two 3kW Immersion Heaters
The E7+ is rated for up to 13A at 230V AC — suitable for immersion heaters up to 3kW. It can control a single immersion element (the most common domestic installation) or two separate 3kW elements, with each heater programmed independently for maximum flexibility. Twin-element cylinders often have an upper element for quick top-up heating and a lower element for full-tank heating — the E7+ can manage both, scheduling each element to the appropriate tariff period.
✔ Tamper-Proof Programme Security — Landlord Ready
The programme security feature locks the E7+'s settings so they cannot be altered by the occupant — the schedule programmed by the installer or landlord remains in place. This is specifically useful in social housing, HMO, and rental properties where the landlord is responsible for ensuring adequate hot water provision and wants to prevent tenants from overriding the off-peak schedule and creating unnecessarily high electricity bills. The app retains access for the authorised installer or property manager.
✔ Energy Consumption Monitoring via App
The Secure app reports energy consumption in kWh for both boost periods and off-peak scheduled heating separately, allowing the homeowner to track usage patterns and identify further saving opportunities. Seeing the kWh cost of each boost versus the off-peak schedule provides practical insight into whether the existing programme is correctly matched to the household's hot water demand.
✔ Same App as C1727 & H3747 Thermostats
The E7+ uses the same Secure app as the C1727 and H3747 smart-capable programmable thermostats — properties with both heating and hot water Secure controls can manage everything through a single application. Battery back-up maintains the correct time and programme settings for approximately 2 years in the event of a power cut, preventing the controller from resetting to a default schedule after a mains interruption.
Technical Specifications
| Manufacturer / Part No. | Secure (Horstmann Controls) — SCE100-000 |
| Product Name | E7+ Smart Immersion Heater Control |
| Contact Rating | 13A 230V AC — suitable for immersion heaters up to 3kW |
| Contact Type | Micro-disconnection on control |
| Supply | 230V 50Hz |
| Immersion Heaters Controlled | One or two 3kW elements (each programmable independently) |
| Programming (standard) | 3 on/off periods (6 daily time periods) — off-peak scheduling |
| Programming (with Wi-Fi adaptor) | Full 7-day — up to 48 time periods — dynamic tariff compatible |
| Connectivity | Bluetooth (local app control, no Wi-Fi needed) + optional SCW100-000 Wi-Fi adaptor |
| App Compatibility | iOS and Android — same app as C1727 and H3747 thermostats |
| Boost Options | Manual: 30 min / 1hr / 2hr; Programmable daily boost |
| Operating Temperature | 0°C to 35°C |
| IP Rating | IP30 |
| Dimensions (H × W × D) | 170 × 115 × 60mm (excluding rocker switch) |
| Colour | White thermoplastic |
| Battery Reserve | Approx. 2 years (maintains time and programme during power cuts) |
| Compliance | BS EN / EN 60730-1; BS EN / EN 60730-2-7; ETSI EN 300 328; ETSI EN 301 489-1/17 |
| Legacy Replacement | Direct plug-in replacement for all Horstmann and Secure Economy 7 controllers (adaptor plate included) |
| Warranty | 7 years — no quibble |
