{"product_id":"worcester-greenstar-4000-12kw-system","title":"Worcester Greenstar 4000 12kW System","description":"\u003ch3\u003eWorcester Greenstar 4000 12kW System Boiler\u003c\/h3\u003e\n\nThe Worcester Greenstar 4000 12kW System Boiler is a compact, highly efficient heating solution designed for small to medium-sized homes with one bathroom. As the direct upgrade to the Greenstar 12Ri, it combines modern design, quiet operation, and user-friendly controls, making it ideal for homes where space and convenience are priorities.\n\n\u003ch3\u003eEfficient Heating for Small Homes\u003c\/h3\u003e\n\nWith a heat output of 12kW and an ErP A rating, this boiler delivers reliable heating and hot water while helping to lower energy bills. Its wide modulation range allows the boiler to operate efficiently at lower demands, ensuring comfort without wasting fuel.\n\n\u003ch3\u003eUser-Friendly Design\u003c\/h3\u003e\n\nThe Greenstar 4000 features a full-colour text display for simple operation and intuitive control. It is also wirelessly compatible with Bosch EasyControl, allowing you to manage your heating and hot water from anywhere. Compact dimensions make it easy to fit in tight spaces without compromising performance.\n\n\u003ch3\u003eQuiet and Sustainable\u003c\/h3\u003e\n\nThis system boiler is one of Worcester’s quietest, making it ideal for installation in living areas. It is also compatible with Greenskies solar panels, allowing homeowners to save on energy costs while reducing their environmental footprint.\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e - **Brand:** Worcester Bosch - **Model:** Greenstar 4000 12kW System - **Boiler Type:** System Boiler, Wall-mounted - **Heat Output:** 12 kW - **Fuel Type:** Natural Gas - **Colour:** White - **Dimensions:** 724 x 400 x 310 mm (HxWxD) - **Weight:** 30.6 kg - **ErP Rating:** A - **Warranty:** 7 years \u003ch3\u003eKey Features\u003c\/h3\u003e - Wide modulation range for lower energy consumption - Full-colour text display for easy operation - Extremely quiet system boiler - Compatible with Bosch EasyControl for wireless operation - Suitable for systems with hot water storage cylinders - Compatible with Greenskies solar panels for energy savings \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003eIs this boiler suitable for small homes?\u003c\/h4\u003e Yes, with a **12kW output**, it is ideal for homes with one bathroom and moderate heating demands. \u003ch4\u003eCan I control the boiler remotely?\u003c\/h4\u003e Yes, it is compatible with **Bosch EasyControl**, allowing remote management via smartphone or tablet. \u003ch4\u003eIs it energy-efficient?\u003c\/h4\u003e Absolutely. With an **ErP A rating** and a wide power range, it is designed to optimize fuel use and lower energy bills. \u003ch4\u003eIs it quiet?\u003c\/h4\u003e Yes, it is one of Worcester’s quietest system boilers, making it unobtrusive in living areas. \u003ch4\u003eCan it work with solar panels?\u003c\/h4\u003e Yes, it is compatible with **Greenskies solar panels** for additional energy savings.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/plumbing-supplies\"\u003eplumbing supplies\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/boilers\"\u003eboilers\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"Worcester","offers":[{"title":"Default Title","offer_id":51771446788438,"sku":"146794","price":1173.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/worcester-greenstar-4000-12kw-system-4843969.jpg?v=1772639534","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/worcester-greenstar-4000-12kw-system","provider":"JJ Building Materials","version":"1.0","type":"link"}