Thermostats
Thermostats are used to control and regulate the temperature of domestic central heating systems by switching heating on and off based on room temperature. This category includes wired and wireless room thermostats, programmable thermostats, and compatible control units suitable for common UK heating installations.
Products are listed with clear specifications to help identify suitable replacements or upgrades based on operating voltage (typically 230V AC), control type (on/off or programmable), communication method (wired or wireless), and system compatibility with domestic heating and hot water controls. Installation and operating instructions are available via our product instruction library.
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A compact, battery‑powered programmable thermostat with capacitive touch controls and a clear backlit screen. The Optimum Vibe OP‑HWSTAT offers six user‑adjustable periods per day, volt‑free switching for broad boiler compatibility and adjustable frost protection — a straightforward option where local scheduled control is required but Wi‑Fi or smart features are not.
OP-HWSTAT Digital Room Thermostat
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£38.85A slim battery transmitter and a mains receiver that together form a programmable RF room thermostat for domestic heating. The Optimum Vibe OP‑TPISTAT supports six daily temperature periods, uses a pre‑linked 868 MHz radio link, and provides volt‑free switching via a 230 V receiver with a 10 A resistive rating—suitable for most combi boilers and retrofit situations where a wireless room stat is preferred.
OP-TPISTAT Optimum Vibe (RF)
£38.85 View Product
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£51.95A compact touchscreen room thermostat with both 868 MHz RF and 2.4 GHz Wi‑Fi, the OP‑WFSTAT pairs a battery‑powered wall stat with a mains receiver to provide four daily heating periods, remote control via the Smart Life app and either volt‑free relay switching or OpenTherm modulation for compatible boilers.
It’s best suited to single‑zone domestic systems where simple app control and an easy‑to‑install wireless stat are needed without the complexity of a larger smart hub.
OP-WFSTAT Wi-Fi Digital Room Thermostat
£51.95 View Product
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£15.99A strap‑on single‑pole changeover thermostat for pipework and hot‑water cylinders, the PCS offers a wide 10–90°C setting range, a fixed ~5°C differential and a 16(4) A switching rating at 250 V AC. It’s built for indoor plant‑room and cupboard use and is intended to switch pumps, valves or auxiliary heating equipment where surface temperature sensing is appropriate.
PCS Pipe / Cylinder Thermostat IP40
£15.99 View Product
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£15.79A simple, mechanical frost‑protection thermostat for domestic heating systems. The Tower STTRFSN V2 uses a sealed bellows and dial to maintain a minimum temperature between −5°C and +15°C, with a 1°C switching differential and volt‑free SPDT contacts for use with boilers and control circuits.
It’s compact, wall‑mounted (60 mm fixing centres) and is best used where you need reliable frost protection rather than programmable or smart heating control.
STTRFSN V2 Room Thermostat
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£14.99A compact, dial‑operated mechanical room thermostat for simple on/off control of domestic heating. It uses a sealed bellows sensor to regulate room temperature between 10°C and 30°C (1°C differential) and is compatible with mains (230V AC) or low‑voltage/volt‑free switching — a low‑cost, robust choice where programmability or smart features aren’t required.
STTRS1 V2 Room Thermostat
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£17.99A simple, dial-operated mechanical room thermostat that switches mains heating at 230 V. The Tower STTRSL uses a sealed bellows sensor for reliable temperature control between 10°C and 30°C, and includes a neon indicator that lights when the heating is on. It’s a low-cost, easy-to-install choice where basic on/off control is sufficient.
STTRSL Room Thermostat
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£20.59A simple dial room thermostat with a blank tamper cover and a sealed‑bellows sensing element. The Tower STTPRS provides manual temperature control from 10°C to 30°C (1°C differential), is rated at 10(3) A and is designed for wall mounting with 60 mm fixing centres — a low‑cost, robust option where authorised setpoints must be preserved.
Tamper Proof Thermostat
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