Baxi 7694034 20 Plate Heat Exchanger Kit – New | ERP Boilers

Poor hot water performance, fluctuating temperatures, and reduced boiler efficiency in selected Baxi, Potterton, and Main ERP combi boilers are often the result of a plate heat exchanger restricted by limescale, sludge, or debris build-up. The Baxi 7694034 Plate Heat Exchanger Kit, 20 Plates, is the genuine replacement secondary heat exchanger that restores that transfer between the primary heating circuit and the domestic hot water supply, without the two water systems ever mixing.

This is a brand-new component, supplied as a complete kit and ready to install with no modification needed across the compatible ERP range.

Compatible Boiler Models

OEM Quality. Genuine Part. Backed by Warranty.

This 7694034 heat exchanger kit restores reliable hot water delivery and improves overall boiler efficiency where a blocked or worn unit has caused fluctuating temperatures. Supplied brand new with a full 12-month warranty, it's a dependable choice for servicing or repairing your ERP-rated combi system.

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 its original packaging.

Note: Please confirm that part number 7694034 matches your existing unit before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.