Worcester Bosch DHW 3-Way Motorised Valve (8-16kW)

This Worcester Bosch DHW three-way motorised valve is a component for specified hot-water and heating systems in the 8–16kW output range. A motorised three-way valve directs water through the required path, for example when a system needs to change between space-heating and cylinder-heating demands. It must be matched to the equipment's hydraulic circuit and controls.

Motorised DHW switching valve for compatible 8–16kW systems

The 8–16kW output band in the product title helps distinguish this part from other Worcester motorised valves, including the separately listed 18–30kW version. It does not mean the component is suitable for every Worcester system within that band. Valve body, actuator, wiring and part numbers should be matched to the manufacturer diagram.

Specifications and available choices

• Worcester Bosch DHW 3-Way Motorised Valve (8-16kW)

Buying and measuring advice

Before ordering, ask the servicing engineer for the exact spare-part identification. Symptoms such as poor hot-water recovery or incorrect valve operation can have several causes, including control and sensor faults. Replacing a valve without diagnosis can leave the underlying problem unresolved.

Installation and care considerations

A competent installer should isolate and make the electrical and hydraulic systems safe before replacement. Follow Worcester Bosch's orientation, wiring and commissioning instructions, including confirming that flow changes correctly when each demand is called. Do not substitute a differently sized or powered valve without approved compatibility.

Related products and buying guides

When planning the complete project, compare Worcester heating controls and accessories and browse complementary central heating boilers. You may also need plumbing and heating valves. For wider selection and preparation advice, explore heating system products.

Frequently asked questions

What does DHW mean?

DHW stands for domestic hot water.

What is a three-way motorised valve used for?

It controls the route taken by water through parts of a compatible heating system.

Will this valve fit any 8–16kW heat pump?

No. Confirm the specific Worcester model and required part number.

Is this the same as the 18–30kW valve?

They are separate listed parts with different output references; they should not be assumed interchangeable.

Who should replace a motorised valve?

A competent heating engineer following the manufacturer's system instructions.

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