Vaillant 178971 Domestic Hot Water (DHW) Heat Exchanger – 12 Plate

Description

Vaillant 178971 Domestic Hot Water (DHW) Heat Exchanger – 12 Plate

The Vaillant 178971 Heat Exchanger (12 Plate) is a Domestic Hot Water (DHW) plate heat exchanger designed for selected Vaillant boilers. It efficiently transfers heat between the primary and domestic hot water circuits, ensuring consistent hot water flow and performance.

Although this part is now obsolete, it may still be available through limited stock or as a compatible replacement. The 12-plate DHW heat exchanger is a critical component that ensures your Vaillant boiler delivers reliable and efficient hot water without cross-contamination between heating and domestic systems.

Key Features

•  Vaillant 12-plate heat exchanger

• Designed for domestic hot water (DHW) systems

• Provides efficient heat transfer and stable water temperature

• Replacement for worn or scaled heat exchangers

• Manufacturer Code: 178971

Common Questions

Q: What are the signs my Vaillant DHW heat exchanger needs replacing?
A: You may notice inconsistent hot water temperatures, slow heating, or fault codes relating to flow or temperature sensors.

Q: Is 178971 still available?
A: It’s now obsolete, but may be replaced by an updated part. Always check with your installer or supplier for alternatives.