Secure C1727 2 Channel Programmable Thermostat Direct Replacement for Horstmann CentaurPlus & ServicePlus

£81.99

The Secure C1727 Thermostat is a smart, 2-channel programmable controller offering Bluetooth app control and optional Wi-Fi upgrade. Designed as a direct replacement for Horstmann CentaurPlus and ServicePlus models, it provides efficient heating and hot water control, Boiler Plus compliance, and an installer-friendly design.

2 in stock
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  • Check Mark 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.
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The Secure C1727 is a modern, feature-rich heating controller designed to replace legacy Horstmann CentaurPlus and ServicePlus models. Built for homeowners looking to upgrade to smart control, it features Bluetooth connectivity out of the box and supports an optional plug-in Wi-Fi adaptor for full remote access and voice assistant integration.

Engineered with simplicity in mind, the C1727 uses the same standard 6-pin backplate as Horstmann units, requiring only minimal wiring changes for a seamless swap. It can control up to two independent zones, including central heating and hot water, or manage dual-zone heating setups.

With built-in Boiler Plus features such as load compensation and optimum start/stop, the Secure C1727 not only boosts efficiency but also enhances user comfort. It’s ideal for modernising traditional systems without replacing wiring infrastructure.

Pack Includes

  • 1 x Secure C1727 Programmable Room Thermostat

  • 1 x Receiver Unit

  • Installation Manual

  • Fixings

Key Features & Benefits

  • Direct Replacement for Horstmann CentaurPlus & ServicePlus – Uses standard 6-pin backplate

  • 2-Channel Control – Perfect for combi and system boilers, or heating + hot water setups

  • Bluetooth Enabled – Control heating locally via smartphone without Wi-Fi

  • Wi-Fi Upgrade Ready – Add optional Wi-Fi card for smart features and voice control

  • Boiler Plus Compliant – Includes load compensation and optimum start/stop

  • Long-Life Battery (Display) – 12-year built-in lithium battery (non-replaceable)

  • Service Interval Reminder – Ideal for rental or compliance monitoring

  • Installer-Friendly App (iOS/Android) – Easy setup and zone management

  • Smart Home Integration – Compatible with Alexa & Google Assistant (via Wi-Fi module)

Technical Specifications:

Feature Details
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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