THEOHEAT Actuators (ACT01)

Product Description

The Theoheat 230V Thermal Actuator is a high-performance 2-wire actuator designed to control individual manifold circuit valves in underfloor heating systems. When used with a room thermostat, it enables precise zone control by opening the valve only when heating is required.

Operating on a 230V power supply, this actuator features a 3.0mm ±0.5 stroke and a normally closed design, delivering quiet, accurate, and reliable performance across all heating zones.

• Compact, modern design – Discreet appearance and easy to install

• Stroke: 3.0mm ±0.5 – Ensures precise water flow regulation

• Power consumption: 2W – Energy-efficient, low-power operation

• Held open installation – Quick, tool-free mounting for fast setup due to red tab holding actuator open 

• 360° installation position – Flexible placement even in confined areas

• Leak protection – Patented technology prevents valve seepage

• All-round function indicator – Clear visual feedback during operation

• Minimal operational noise – Quiet, maintenance-free functionality

• Built-in surge protection – Enhanced durability and electrical safety

• Powered indicator-  Top centre of the head raises when actuator is powered. 

Engineered for seamless integration with Theoheat or Heatmiser wiring centres, this actuator provides reliable room-by-room temperature control—improving comfort and energy efficiency throughout your underfloor heating system.

RED TAB TO BE REMOVED once screwed down onto manifold ( this tab holds actuator open until its removed, making initial installation much easier )