The Worcester Bosch Greenstar 28CDi Er P compact combi boiler is a small and efficient combi boiler available from Worcester, able to meet high demands without requiring excess space. Suitable for small, medium and large sized properties, this natural gas boiler can deliver outputs of up to 36 kW and flow rates of up to 14. 6 l/min and is best suited to properties that demand high outputs from an appliance that can fit within a kitchen cupboard. It has a split-jig design to make installation straightforward, and it is environmentally conscious too, with a grade A erp rating. This boiler further benefits from highly adjustable controls that make it easy to use and programme, with a clear LCD display and a range of modes. The robust metal mounting jig and built-in frost protection provide a strong, long-lasting boiler system with simple maintenance and issue diagnostics. The boiler comes packaged with a horizontal flue pipe for additional convenience and value.