Heatline Monza 28C 12 Plate Heat Exchanger – Refurbished | Part No. D020116523

A deteriorating plate heat exchanger is one of the most common causes of unreliable hot water in a Heatline Monza 28C boiler. As the unit scales or wears internally, heat transfer between the primary heating circuit and the domestic hot water supply breaks down — resulting in temperature fluctuations, reduced flow, or persistent error codes. The Heatline Monza 28C 12 Plate Heat Exchanger (Part No. D020116523) is the genuine direct replacement that restores efficient, consistent hot water delivery.

This is a professionally refurbished genuine Heatline component. Each unit is stripped, cleaned, descaled, and pressure-tested against original manufacturer specifications before dispatch — giving you dependable, OEM-quality performance at a fraction of the cost of a new part. The 12-plate design provides a direct like-for-like fit for the Heatline Monza 28C, requiring no modifications during installation.

Compatible Boiler Models

Key Features

• Genuine Heatline part number D020116523 — precise direct OEM replacement
• 12-plate heat exchanger for efficient DHW heat transfer
• Professionally refurbished: cleaned, descaled, and pressure-tested
• Designed for Heatline Monza 28C boilers (2011–2012)
• 12-month warranty for complete peace of mind

Why Choose This Refurbished Unit?

The D020116523 heat exchanger is restored to OEM standards, delivering excellent, reliable performance at a lower cost than a new part. Every unit passes thorough pressure and leak tests before dispatch. Replacing this part resolves heat loss and poor hot water flow, extending your boiler's working life without compromising reliability or safety.

Delivery & Returns

Orders placed before 3:00 PM are dispatched the same working day. Standard and next-day delivery options are available at checkout. Returns are accepted within 30 days, provided the item is unused and returned in its original packaging.

Note: Please confirm that part number D020116523 matches your existing unit before ordering. Installation must be performed by a Gas Safe registered engineer to ensure safety compliance and warranty validity.