Vaillant Ecotec Plus Heat Exchanger (6 Coil) – Refurbished | Part No. 0020135133

Reduced hot water flow, kettling noises, or a boiler that won't hold pressure are common signs of a failing 6-coil heat exchanger. The Vaillant Ecotec Plus Heat Exchanger 0020135133 (Refurbished, 6 Coil) is the correct replacement for a wide span of Ecotec Plus 612–637 models, restoring efficient, even heat transfer and reliable hot water delivery.

This is a professionally refurbished genuine Vaillant component, fully pressure-tested before dispatch. Minor cosmetic marks may be present, consistent with removal from a working boiler. Supplied with a full 12-month warranty. Only a limited number of refurbished units are available for this part.

Compatible Vaillant Boiler Models

Refurbished. Pressure-Tested. 12-Month Warranty.

Every refurbished 0020135133 heat exchanger is stripped, cleaned, and pressure-tested to OEM standards, restoring efficient heat transfer across the Ecotec Plus 612–637 range. Supplied with a full 12-month warranty.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day. Standard and next-day delivery available at checkout. Returns accepted within 30 days in original, unused condition.

Note: Please confirm that part number 0020135133 matches your existing heat exchanger, and check the GC number against your boiler's data plate, before ordering. Must be fitted by a Gas Safe registered engineer.

Product Reference