Vaillant Ecotec Plus 824 / 831 / 835 19 Plate DHW Heat Exchanger – Refurbished | Part No. 0020038572

When your Vaillant Ecotec Plus boiler delivers inconsistent hot water temperatures, reduced flow, or sluggish DHW response, a worn plate heat exchanger is very often responsible. The Vaillant Ecotec Plus 824 19 Plate DHW Heat Exchanger (Part No. 0020038572) is a refurbished direct replacement that restores efficient heat transfer to your domestic hot water supply — resolving temperature swings and restoring strong, consistent hot water performance.

This is a fully refurbished genuine Vaillant component, cleaned, inspected, and tested before dispatch. The 19-plate design covers Vaillant Ecotec Plus 824, 825, 831, 832, 835, and Ecotec Pro 28/30 models manufactured from 2012 onwards, providing a direct like-for-like fit with no modifications required.

Compatible Boiler Models

Key Features

• Vaillant part number 0020038572 — 19-plate DHW heat exchanger, direct OEM replacement
• Fully refurbished: cleaned, inspected, and tested before dispatch
• Covers Ecotec Plus 824, 825, 831, 832, 835 (2012–2017+) and Ecotec Pro 28/30 — NG & LPG variants
• Restores stable DHW temperature and consistent hot water flow
• 12-month warranty included

Delivery & Returns

Orders placed before 1:00 PM (Monday–Friday) are dispatched the same working day. Standard and next-day delivery available at checkout. Next-day orders placed on Fridays arrive Monday — select Saturday delivery at checkout for weekend delivery. Returns accepted within 30 days if unused and in original packaging.

Note: Always use a Gas Safe registered engineer for installation.