Precision Control for Underfloor Heating & Retrofit Projects

Product Overview

The DT-120 is a robust surface-mounted dial thermostat engineered for the simple, reliable control of underfloor heating zones and traditional radiator circuits. Backed by a 5-Year Warranty, it bridges the gap between simplicity and accuracy. Designed as a direct replacement for mechanical bi-metallic thermostats, the DT-120 offers a rapid retrofit solution for projects where wall depth is limited, eliminating the need for recessed back boxes.

Technical Features & Benefits

• Electronic Accuracy: Replaces inaccurate mechanical bellows with precise regulation (+/- 1°C), ensuring stable comfort and efficiency for UFH systems.
• Instant Diagnostics: Features a high-visibility Red LED Call-for-Heat indicator, providing immediate visual confirmation of firing demand to aid in fault finding and system commissioning.
• Rapid Retrofit (Surface Mount): Specifically engineered with a slimline chassis for direct wall mounting. Ideal for renovation projects or social housing upgrades where installing flush back boxes is impractical.
• Universal 230V Control: Designed for seamless integration with Whisper Controls wiring centres and 230V thermal actuators, capable of switching up to 3A loads.

Product Description

The DT-120 is the definitive "install-and-forget" solution for installers requiring a reliable, non-programmable interface. It effectively manages single underfloor heating zones or central heating circuits, providing a significant upgrade in accuracy over older units.

Unlike complex digital units, the DT-120 prioritises ease of use and durability. Its surface-mounted design allows for installation on any flat surface, making it the perfect choice for retrofitting older properties or controlling secondary zones (e.g., conservatories, guest rooms). While simple in operation, it maintains professional standards with electronic switching logic and a dedicated LED status light, ensuring installers can verify system demand instantly.

If you need help finding the right dial thermostat for your project, call our expert team on 01993 640073.