Product code: 473938
A Worcester Bosch shield for the heat exchanger of Greenstar, Greenstar ErP, RD Series and CDi Series boilers. The heat exchanger transfers heat from a boiler's burner to water. A primary heat exchanger is found in all boilers, using heat from a burner to raise the temperature of the water in the system while a secondary heat exchanger is present only in combis and allows the heat to be transferred between closed systems. As the UK’s leading parts specialist, Wolseley carry the widest range of spares, stocking all the big name brands for the trade. Now, to give our customers even more support, we’re adding a greater number of specified parts from leading manufacturers into our branches with the introduction of the Wolseley Branch Parts Accreditation Scheme. Many branches will now be Silver and Gold accredited, a sign that they hold more stock than anyone else, so you can be confident you’ll get the parts you need to fix it first time. Fast.