The Worcester Bosch Greenstar 4000 21Kw System Boiler is a natural gas-fueled, wall-mounted system boiler designed for domestic applications. This 'A' rated boiler is finished in white and offers a heat output of 21kW.

Product Features:

• Brand: Manufactured by Worcester Bosch.
• Fuel Type: Runs on Natural Gas.
• Heat Output: Provides a heat output of 21kW.
• Mounting: Designed for Wall Mount installation.

The Greenstar 4000 is a compact and efficient system boiler, with dimensions of 400mm (width) x 724mm (height) x 310mm (depth) and a weight of 33.2kg.