The Grant MPCBS21 Plate Heat Exchanger – 70 MKII is a genuine replacement component designed to deliver efficient and reliable heat transfer in compatible Grant boiler systems. This plate heat exchanger plays a vital role in transferring thermal energy from the boiler’s primary circuit to the domestic hot water or heating circuits, helping ensure consistent temperatures, strong performance, and energy-efficient operation. Manufactured to Grant’s exact quality standards, it is built for durability and dependable service when installed by a qualified heating engineer during servicing, maintenance, or repair.

Compatibility for the MPCBS21 plate heat exchanger includes Grant 70 MKII boiler models that utilise this specific exchanger design. It is commonly replaced when symptoms such as reduced hot water performance, fluctuating temperatures, or internal scaling are present. Always confirm the exact boiler model and part specification before installation to ensure correct fit and optimal performance.

Using a genuine Grant plate heat exchanger helps restore efficient heat transfer, supports stable hot water and heating delivery under varying demand, and contributes to the long-term reliability and smooth operation of your central heating and hot water system.