Thermostatic Radiator Head DANFOSS RTW‑K, rotary control, white, temperature range 8–28 °C

Thermostatic Radiator Head DANFOSS RTW‑K is a white rotary-control valve head for manual room temperature regulation. It is designed for indoor use on compatible radiator valves and provides a user-adjustable temperature range of 8–28 °C. The unit is intended for residential and light commercial heating systems where straightforward, mechanical control of room temperature is required.

Advantages

The RTW‑K offers simple rotary operation for direct setpoint selection and a compact white design that integrates with most radiators. Its mechanical thermostat does not require power, ensuring continued control during power outages. The device provides a clear and repeatable control range from 8 to 28 °C for maintaining comfortable room temperatures.

Suitable for

• Manual temperature control of domestic radiators
• Light commercial heating zones where simple thermostatic control is sufficient
• Replacement of compatible M30-type radiator heads
• Rooms where a reliable, power-free thermostat is preferred

When it may not be suitable

This thermostatic head is a mechanical, manual device and does not include electronic programming, remote control, or integration with smart home systems. It requires a compatible radiator valve connection and is not suitable where electronic, schedule-based temperature control or remote monitoring is required.

Key specifications

• Control type: rotary mechanical thermostatic head
• Color: white
• Temperature range: 8–28 °C
• Intended use: indoor radiators in residential and light commercial buildings
• Power: passive (no external power required)

How to use

Mount the thermostatic head onto a compatible radiator valve according to the valve manufacturer’s instructions. Rotate the control head to set the desired temperature within the 8–28 °C range. The thermostatic element will modulate the valve to maintain the selected room temperature. No electrical connection or batteries are required; minimal maintenance is limited to occasional cleaning and inspection for proper mechanical operation.

What to consider before purchase

• Verify valve compatibility (M30-type connection or matching adapter)
• Confirm the temperature range (8–28 °C) meets your heating control needs
• Decide if a mechanical, non-programmable thermostat fits your usage requirements

Usage recommendations

For optimal performance, ensure the radiator valve and head are correctly fitted and free of obstructions; avoid covering the thermostat with curtains or furniture to allow accurate room temperature sensing.