Radiator Thermostat Olympia HT 430-23A (model 73036) White, electronic control

Olympia HT 430-23A radiator thermostat in white is an electronic controller designed to regulate the temperature of a single radiator. The compact unit measures approximately 60 mm wide, 59 mm deep and 100 mm high and comes as a single-piece device intended for replacement or upgrade of radiator valve controls in residential and light commercial heating systems. The thermostat uses a display-based menu for setting comfort and economy periods and supports individual daily schedules.

Advantages

The device offers a compact, near-silent drive mechanism that exerts minimal strain on radiator valves and fits in tight installation spaces. Menu-driven operation and a clear display make programming straightforward, with preset comfort and economy periods for fast commissioning. Several safety and convenience functions such as frost protection, window-open detection and a child lock enhance reliability and practical everyday use.

Suitable for (tasks / use cases)

When it may not be suitable

The thermostat is intended for control of individual radiators and is not a central heating controller; it does not replace a boiler management system or a multi-zone building automation controller. It may not be suitable where wireless network integration or remote app control is required, since this model provides local, display-based programming only.

Key specifications

How to use

Mount the thermostat onto the radiator valve according to the valve adapter supplied with the device, ensuring a firm but not forceful fit. Use the display menu to select preset comfort and economy periods or to program up to nine time slots per day and set individual schedules for each weekday. Activate functions such as frost protection or holiday mode when needed. The unit detects open windows automatically and adjusts output accordingly. Follow the included manual for adapter selection, initial commissioning and maintenance guidance.

What to consider before purchase

Recommendations

For stable temperature control and energy savings, program regular comfort and economy periods aligned with occupancy patterns, enable frost protection during longer absences, and use the holiday mode for extended trips. Verify valve compatibility before installation and consult the manual for adapter fitting and seasonal time changes.