Vaillant Turbomax Plus 12 Plate Heat Exchanger – Refurbished | Part No. 065131

Lukewarm taps, slow temperature recovery, and inconsistent hot water flow are common signs that a Vaillant plate heat exchanger is struggling to transfer heat efficiently between the primary and domestic hot water circuits. The Vaillant Turbomax Plus 12 Plate Heat Exchanger, Part No. 065131, is the genuine replacement that restores that transfer and brings steady, dependable hot water performance back to your boiler.

This is a professionally refurbished unit, sourced from fully functioning boilers and tested by qualified technicians before dispatch. Refurbished units may carry light cosmetic marks but are fully cleaned, descaled, and pressure-tested to confirm reliable operation, giving you genuine manufacturer-spec function at a fraction of the cost of buying new.

Compatible Boiler Models

OEM Quality. Proven Performance. Backed by Warranty.

Every refurbished plate heat exchanger is tested for consistent performance before dispatch. This 065131 unit restores efficient heat transfer and helps eliminate the slow recovery and lukewarm water that come with a worn exchanger. Supplied with a full 12-month warranty, it's a reliable, cost-effective alternative to a brand-new part.

Delivery & Returns

Orders placed before 1:00 PM (Mon–Fri) are dispatched the same working day, with standard, next-day, and Saturday delivery options available at checkout. Returns are accepted within 30 days provided the item is unused and in original packaging; unless faulty, the buyer covers return shipping.

Note: Please confirm that part number 065131 matches your existing unit before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.