The thermo-electric actuator, coupled with convertible or thermostatic radiator valves, with distribution manifolds for radiant panel systems and radiators and with zone valves, is controlled by the room thermostat or another electrical switch, shutting off the medium automatically.

Compact Control for Precision Heating

The 656 Series Thermo-Electric Actuator delivers reliable and precise control of heating and cooling systems, all within a compact and durable design. Engineered for effortless integration into underfloor heating and radiator systems, this actuator ensures silent operation and accurate temperature management, even in tight spaces. Ideal for both residential and commercial applications.

Energy-Efficient & Maintenance-Free

Powered by thermo-electric technology, the 656 Series actuator operates with low power consumption, making it a smart choice for energy-conscious systems. Its maintenance-free build, paired with high-quality materials, means long-lasting performance with minimal effort. Save on energy and reduce downtime—without sacrificing performance or comfort.

Universal Fit & Reliable Operation

Designed for easy installation, the 656 Series features a universal M30x1.5 connection, making it compatible with most valve bodies on the market. It includes position indicators and a snap-on installation system for hassle-free setup. Whether you’re upgrading an HVAC system or building from scratch, this actuator guarantees consistent, reliable operation across a wide range of environments.