Baxi 14 Plate Heat Exchanger – Refurbished | Part No. 720790001 (24kW/28kW/33kW)

Weak hot water flow and inconsistent heating performance in a 24kW, 28kW, or 33kW Baxi, Potterton, or Main combi boiler often points to a plate heat exchanger that's no longer transferring heat efficiently between the heating and domestic hot water circuits. The Baxi 14 Plate Heat Exchanger, Part No. 720790001, is the genuine replacement that restores that transfer and brings your boiler's output back to full strength.

This is a professionally refurbished component, cleaned, descaled, and pressure-tested before dispatch. The 14-plate design is a direct fit across a wide range of Baxi, Potterton, and Main models rated between 24kW and 33kW, with no modification needed for installation.

Compatible Boiler Models

OEM Quality. Proven Performance. Backed by Warranty.

Every refurbished plate heat exchanger is cleaned, descaled, and pressure-tested to confirm dependable operation before dispatch. This 720790001 unit restores efficient heat transfer between circuits and helps resolve the fluctuating temperature and weak flow caused by a failing 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 (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 condition.

Note: Please confirm that part number 720790001 matches your existing unit before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.