Vaillant Ecotec Plus 837/937 35 Plate Heat Exchanger – Refurbished | Part No. 0020025041

Hot water fluctuation and reduced heating efficiency in larger Vaillant Ecotec Plus and Ecotec Exclusive boilers are usually down to a plate heat exchanger that's no longer transferring heat efficiently between circuits. The Vaillant Ecotec Plus 837 Plate Heat Exchanger, 35 Plates, Part No. 0020025041, is the genuine replacement built for these higher-output models, restoring fast, stable hot water delivery.

This is a professionally refurbished unit, cleaned, inspected, and fully tested before dispatch, giving you dependable manufacturer-spec performance at a significant saving over a new part. It's a precise fit across the compatible Ecotec Plus and Ecotec Exclusive range, with no modification needed for installation.

Compatible Boiler Models

OEM Quality. Proven Performance. Backed by Warranty.

Every refurbished plate heat exchanger is cleaned, inspected, and fully tested before dispatch. This 0020025041 unit restores efficient heat transfer across its 35 plates and helps resolve the hot water fluctuation and reduced output caused by a worn exchanger. Supplied with a full 12-month warranty, it's a reliable, cost-effective alternative to a brand-new replacement.

Delivery & Returns

Orders placed before 1:00 PM are dispatched the same working day, with standard and next-day delivery options available at checkout. Returns are accepted within 30 days, provided the item is unused and in its original condition.

Note: Please confirm that part number 0020025041 matches your existing unit before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.