Greenstar CDi Classic gas boilers are our top of the range combi boilers, as they offer the widest choice of features. These include the ability to control both the hot water and central heating temperatures, providing the ultimate in performance, economy and user convenience. The new ErP version is more energy efficient. An important feature of Greenstar CDi Classic combi boilers is that they condense in both heating and hot water modes, resulting in greater efficiency and fuel savings. The CDi also has a feature to make system re-pressurisation simple when your system needs refilling. There is also a new, low energy, pump which saves you money on electricity. The CDi also has a feature where the condensate liquid is emptied down the boiler in larger amounts which prevents problems of freezing in extreme temperatures. The Greenstar 38CDi Classic is 90.2% efficient and is in the highest possible official efficiency category, SAP 2005 seasonal efficiency rating. KEY SPECIFICATION Boiler Type : Combi DHW Flow Rate : 16.4 Fuel Type : Gas

The Greenstar 25i ERP with domestic hot water outputs of up to 25kW is ideal for apartments and small to medium-sized properties with one bathroom. KEY SPECIFICATION Boiler Type : Combi KW Output : 24 DHW Flow Rate : 10.2 Fuel Type : Natural Gas ErP 'A' rated for heating and hot water Manufacturer Product number: 7733600012 SEDBUK A-rated boiler: Operating at efficiency levels over 86.9%