Secure C1727 2 Channel Programmable Thermostat Direct Replacement for Horstmann CentaurPlus and ServicePlus
The Secure C1727 Programmable Thermostat offers 2-channel control, Bluetooth connectivity, and Boiler Plus compliance, serving as a direct upgrade for Horstmann CentaurPlus and ServicePlus models.
- All prices include VAT
- Estimated Delivery: For most items (over 99% of our products), orders placed before 3pm on working days will be dispatched the same day with our Fast DELIVERY 1st class service. For the rare items not immediately in stock, dispatch may take 1-3 working days after receiving your order. If your order cannot be dispatched the same day, we will notify you via email.
- For boilers: We aim to dispatch on the next working day. However, in some cases, it may take 2-3 working days to dispatch. Rest assured, we will always strive for the fastest possible turnaround.
The Secure C1727 is a modern dual-channel programmable thermostat designed to directly replace Horstmann CentaurPlus and ServicePlus units. With built-in Bluetooth connectivity and support for an optional Wi-Fi module, it bridges the gap between traditional heating control and full smart home automation.
Built to simplify installation, the C1727 uses the standard 6-pin backplate found on legacy Horstmann models, allowing for a minimal wiring swap. It supports independent 2-zone control, ideal for heating and hot water or dual heating zones in modern systems.
Fully Boiler Plus compliant, it includes advanced features such as load compensation, optimum start/stop, and a service reminder—making it particularly useful in rental or compliance-critical environments. The thermostat’s built-in 12-year battery and installer-friendly mobile app ensure long-term reliability and simple setup.
Key Features
• Direct Replacement for Horstmann Units — Uses standard 6-pin backplate for simple swap
• 2-Channel Control — Suitable for combi boilers or separate heating and hot water control
• Bluetooth Enabled — Local smartphone control without Wi-Fi connectivity
• Wi-Fi Upgrade Ready — Add-on module enables smart features and voice assistant support
• Boiler Plus Compliant — Features include load compensation and optimum start/stop
• Integrated Long-Life Battery — Up to 12 years of operation (non-replaceable)
• Service Interval Reminder — Ideal for landlords and annual maintenance compliance
• Installer App Support — Setup and configuration via iOS/Android application
• Smart Integration via Wi-Fi — Compatible with Alexa and Google Assistant
Applications
• Smart Thermostat Upgrade — Replace older Horstmann models with modern control
• Two-Zone Heating Systems — Manage heating + hot water or two heating circuits
• Energy Efficiency Compliance — Meets Boiler Plus standards for modern installations
• App-Based Control — Use Bluetooth or Wi-Fi for scheduling and remote access
• Voice-Activated Heating — Enable voice control with Alexa or Google Assistant (Wi-Fi module required)
Technical Specifications:
| Feature | Details |
|---|---|
| Brand | Secure |
| Product Name | Secure C1727 Programmable Thermostat |
| Product Code | C1727 |
| GTIN / EAN | 5015914367533 |
| Channels | 2 (Volt-Free SPDT) |
| Power Supply (Receiver) | 230V / 240V AC (50Hz) |
| Battery (PTD) | Non-replaceable lithium-ion, approx. 12 years |
| Dimensions (Receiver) | 91 x 153 x 32.5 mm |
| Dimensions (PTD) | 100 x 100 x 29 mm |
| Installation | Wall-mounted on standard 6-pin backplate |
| Connectivity | Bluetooth standard; Wi-Fi via optional module |
| Smart Compatibility | Amazon Alexa, Google Assistant (with Wi-Fi adaptor) |
| Compliance | Boiler Plus, EN 60730-1, RED EMC |
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