The Vaillant 0020009871 is a genuine OEM immersion heater element designed for use in compatible Vaillant hot water cylinders, storage combi units, and thermal stores. This high-performance heating element provides reliable, efficient water heating, either as a primary heat source or as a backup/boost function in dual-heat systems.

A failing immersion heater may cause slow heating, no hot water, tripped safety devices, or inconsistent temperature performance. Replacing it with this genuine Vaillant component ensures safe operation, fast recovery times, and long-term reliability.

Key Features:

• Genuine Vaillant immersion heater element

• Provides efficient and reliable water heating

• Suitable for primary or backup operation

• Manufactured to Vaillant OEM quality and safety standards

• Durable, corrosion-resistant construction

• Helps resolve hot water performance issues

• Direct-fit replacement for professional installation

Compatibility

The Vaillant 0020009871 Immersion Heater is compatible with:

• Selected Vaillant unvented cylinders

• Vaillant VUI storage combi units

• Vaillant thermal stores

• Any appliance listing 0020009871 in the official Vaillant parts manual

Installers should always verify compatibility using the specific model’s service documentation.