Our higher output Greenstar i System boiler is part of that latest generation of smaller and lighter boilers. Suitable for small, medium and large homes, the boiler can also be fitted in a standard kitchen cupboard. The Greenstar i System Compact boilers with outputs of 27kW and 30kW, are compact, lightweight wall-mounted boilers that can be fitted in a standard kitchen cupboard. The appliance comes with a steel wall-mounting jig that not only allows pipes to go behind the boiler but also the ability to pre-pipe all of the pipework before the boiler is placed on the wall. The boilers can also be used with the Greenstore high efficiency cylinder range to achieve the optimum system solution and additional energy savings. This boiler can be used with our range of high efficiency Greenstore cylinders for a complete Worcester system solution for your home.