{"product_id":"secure-e7-smart-immersion-heater-controller-sce100-000-bluetooth-app-economy-7-off-peak-tariff-hot-water-programmer-horstmann-replacement","title":"Secure E7+ Smart Immersion Heater Controller SCE100-000 — Bluetooth App Economy 7 Off-Peak Tariff Hot Water Programmer Horstmann Replacement","description":"\u003cdiv style=\"font-size:16px;font-family:Arial,Helvetica,sans-serif;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n  \u003c!-- ── INTRO ─────────────────────────────────────────────────────── --\u003e\n  \u003cp style=\"margin:0 0 18px;\"\u003e\n    The \u003cstrong\u003eSecure E7+ (SCE100-000)\u003c\/strong\u003e is a \u003cstrong\u003esmart-capable immersion heater controller\u003c\/strong\u003e designed to manage one or two 3kW immersion heating elements, making the most of \u003cstrong\u003eoff-peak electricity tariffs\u003c\/strong\u003e 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 \u003cstrong\u003edirect plug-in replacement\u003c\/strong\u003e for all legacy Horstmann and Secure Economy 7 controllers — the included adaptor plate allows retrofitting without rewiring. A \u003cstrong\u003eBluetooth-enabled app\u003c\/strong\u003e (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 \u003cstrong\u003efull 7-day programming across 48 time periods\u003c\/strong\u003e and dynamic tariff compatibility. A tamper-proof programme security feature makes the E7+ particularly suitable for \u003cstrong\u003elandlord and social housing installations\u003c\/strong\u003e. \u003cstrong\u003e7-year no-quibble warranty\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003c!-- ── TEAL TARIFF CALLOUT ───────────────────────────────────────── --\u003e\n  \u003cdiv style=\"border-left:4px solid #008377CF;background:#e6f4f3;padding:10px 16px;margin-bottom:22px;border-radius:0 6px 6px 0;\"\u003e\n    \u003cstrong style=\"color:#005c54;\"\u003eℹ E7+ and Off-Peak Tariffs — How It Works\u003c\/strong\u003e\u003cbr\u003e\n    The E7+ is designed specifically to heat water \u003cstrong\u003eduring the cheap-rate periods\u003c\/strong\u003e 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.\n  \u003c\/div\u003e\n\n  \u003c!-- ── FEATURES GRID ──────────────────────────────────────────────── --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;font-weight:600;font-size:15px;padding:10px 16px;border-radius:6px 6px 0 0;\"\u003eFeatures \u0026amp; Benefits\u003c\/div\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:12px;background:#e6f4f3;padding:14px;border-radius:0 0 6px 6px;margin-bottom:22px;\"\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Plug-in Horstmann Replacement — Adaptor Plate Included\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe E7+ is \u003cstrong\u003efully interchangeable with all existing Horstmann and Secure Economy 7 controllers\u003c\/strong\u003e. 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Bluetooth App — Local Control Without Wi-Fi\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe E7+ connects via \u003cstrong\u003eBluetooth to the Secure app\u003c\/strong\u003e (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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Optional Wi-Fi Adaptor — Full Remote Control\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe optional \u003cstrong\u003eSCW100-000 plug-in Wi-Fi adaptor\u003c\/strong\u003e (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 \u003cstrong\u003efull 7-day programming with up to 48 time periods\u003c\/strong\u003e 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Manual \u0026amp; Programmable Boost\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe \u003cstrong\u003emanual boost button\u003c\/strong\u003e on the front panel provides an instant top-up without disturbing the programmed schedule — selectable for 30 minutes, 1 hour, or 2 hours. The \u003cstrong\u003eprogrammable boost function\u003c\/strong\u003e 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Controls One or Two 3kW Immersion Heaters\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe E7+ is rated for \u003cstrong\u003eup to 13A at 230V AC — suitable for immersion heaters up to 3kW\u003c\/strong\u003e. It can control a single immersion element (the most common domestic installation) or \u003cstrong\u003etwo separate 3kW elements\u003c\/strong\u003e, 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Tamper-Proof Programme Security — Landlord Ready\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe \u003cstrong\u003eprogramme security feature locks the E7+'s settings\u003c\/strong\u003e 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Energy Consumption Monitoring via App\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe Secure app reports \u003cstrong\u003eenergy consumption in kWh\u003c\/strong\u003e 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:13px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377CF;margin-bottom:5px;\"\u003e✔ Same App as C1727 \u0026amp; H3747 Thermostats\u003c\/div\u003e\n      \u003cdiv style=\"font-size:14px;\"\u003eThe E7+ uses the \u003cstrong\u003esame Secure app as the C1727 and H3747 smart-capable programmable thermostats\u003c\/strong\u003e — 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.\u003c\/div\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- ── SPEC TABLE ─────────────────────────────────────────────────── --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;font-weight:600;font-size:15px;padding:10px 16px;border-radius:6px 6px 0 0;\"\u003eTechnical Specifications\u003c\/div\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;margin-bottom:22px;font-size:14px;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;width:44%;border-bottom:1px solid #c8e6e3;\"\u003eManufacturer \/ Part No.\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eSecure (Horstmann Controls) — \u003cstrong\u003eSCE100-000\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eE7+ Smart Immersion Heater Control\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eContact Rating\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003e\n\u003cstrong\u003e13A 230V AC\u003c\/strong\u003e — suitable for immersion heaters up to 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eContact Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eMicro-disconnection on control\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eSupply\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003e230V 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eImmersion Heaters Controlled\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eOne or two 3kW elements (each programmable independently)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eProgramming (standard)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003e3 on\/off periods (6 daily time periods) — off-peak scheduling\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eProgramming (with Wi-Fi adaptor)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eFull 7-day — up to 48 time periods — dynamic tariff compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eConnectivity\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eBluetooth (local app control, no Wi-Fi needed) + optional SCW100-000 Wi-Fi adaptor\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eApp Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eiOS and Android — same app as C1727 and H3747 thermostats\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eBoost Options\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eManual: 30 min \/ 1hr \/ 2hr; Programmable daily boost\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003e0°C to 35°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eIP30\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eDimensions (H × W × D)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003e170 × 115 × 60mm (excluding rocker switch)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eColour\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eWhite thermoplastic\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eBattery Reserve\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eApprox. 2 years (maintains time and programme during power cuts)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eCompliance\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eBS EN \/ EN 60730-1; BS EN \/ EN 60730-2-7; ETSI EN 300 328; ETSI EN 301 489-1\/17\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;border-bottom:1px solid #c8e6e3;\"\u003eLegacy Replacement\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;border-bottom:1px solid #c8e6e3;\"\u003eDirect plug-in replacement for all Horstmann and Secure Economy 7 controllers (adaptor plate included)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 14px;font-weight:600;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px;\"\u003e\n\u003cstrong\u003e7 years\u003c\/strong\u003e — no quibble\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n\u003c\/div\u003e","brand":"Secure Meters","offers":[{"title":"Default Title","offer_id":64142782366045,"sku":"SCE100-000","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SercureE7PlusSmartimmersionwaterheatercontroller.webp?v=1775826205","url":"https:\/\/qualityheating.co.uk\/products\/secure-e7-smart-immersion-heater-controller-sce100-000-bluetooth-app-economy-7-off-peak-tariff-hot-water-programmer-horstmann-replacement","provider":"AIZO Quality Heating","version":"1.0","type":"link"}