220V Programmable Floor Heating Controller

This 220V underfloor heating controller is rated for 16A resistive loads and operates within a 200–230V AC supply range. Dimensions are 120 × 80 × 35 mm; unit weight is approx. 220 g. Housed in a neutral beige finish, it uses flame-retardant plastic compliant with EN 60730 safety standards. A 3-metre external temperature sensor is supplied, allowing strategic placement to avoid thermal interference. Adjustable temperature range: 5°C to 40°C in 0.5°C steps. Functional ambient temperature range: 5°C to 50°C. The controller applies intelligent proportional-integral (PI) regulation — not simple on/off switching — to maintain stable floor surface temperatures over time. Its internal algorithm adapts to gradual heat-up and cooldown phases typical of underfloor systems, reducing relay wear and improving long-term reliability. Programming interface supports up to 6 time-periods per day and weekday/weekend differentiation. Ideal for retrofit and new-build underfloor heating in homes, extensions or outbuildings. Use cases include maintaining frost protection in garages (set to 5°C), ensuring comfort in conservatories during seasonal shifts, or delivering scheduled warmth in bathrooms ahead of use. Sensor flexibility enables installation in locations where wall mounting near heat sources would compromise accuracy — e.g., behind furniture or inside skirting voids.