Vaillant 0020231140 DHW Plate Heat Exchanger – 18 Plates

The Vaillant 0020231140 is a genuine domestic hot water (DHW) plate heat exchanger featuring 18 high-efficiency plates for rapid and reliable heat transfer. Designed to maintain consistent hot water performance, this component ensures efficient separation between the heating circuit and hot water supply.

Manufactured to Vaillant’s high OEM standards, this plate heat exchanger is ideal for restoring lost efficiency, resolving temperature fluctuations, and replacing scaled or blocked units in a wide range of Vaillant boilers.

Key Features:

• Genuine Vaillant DHW plate heat exchanger

• 18-plate design for fast, efficient heat transfer

• Maintains stable, reliable hot water temperature

• Helps resolve DHW performance issues caused by scaling or blockage

• Durable stainless-steel construction for long service life

• Suitable for professional installation and maintenance

Compatibility

The 0020231140 is suitable for various Vaillant ecoTEC and related models (exact compatibility may vary):

• ecoTEC Plus models

• ecoTEC Pro models

• ecoFIT / other Vaillant systems using an 18-plate DHW exchanger

Engineers should verify compatibility with the boiler’s specific parts list or service manual.