Ease of installation SimpleSwitch to previous Worcester i System models with pre-piping jig offering rear piping as standard Flexibility of siting provided by long flue lengths (up to 12m with 60/100mm flues) and a 500ml integrated condensate siphon to reduce the risk of freezing Complete peace of mind for the end user with a 10-year heat exchanger and a 7-year product guarantee available as standard. Wide modulation range designed to optimise efficiency when heating demand is low. High-end design, quiet operation (up to 42dB(A)) with an intuitive, long text, colour boiler display for ease of use Performance at low pressure Quiet operation Manufacturer Stock Code:7733600378 EAN Code:4057749856678 Length:310 mm Width:400 mm Depth:310 mm Height:724 mm Weight:33.2 kg Manufacturer Guarantee:7 years Sub-Category:Domestic Boiler Colour:White Brand:Worcester Bosch Warranty:10 Years Energy Efficiency:A Application:Domestic Boiler Model:Greenstar 4000 Output:12 kW Ready for 20% Hydrogen:Yes Category:System Fuel Type:LPG Includes Magnetic Filter:No