Installation aids on-board, including pre-formed pipe tails and an easy-to-install push-fit PRV solution. A range of cost-saving features including, Quick Tap water saving functionality a wide performance range to deliver maximum hot water performance and exactly the required level of heating. Comprehensive range of control options available, including all 230v controls on the market Easy to live with. Incredibly quiet when in use, its our quietest Worcester Bosch combi boiler. The award-winning Bosch design language adorns the Greenstar 2000 should the boiler be fitted in a visible living space. 5 year guarantee