{"product_id":"worcester-bosch-greenstar-4000-24kw-system-boiler-including-flue-15mm-scale-reducer","title":"Worcester Bosch Greenstar 4000 24kW System Boiler Including Flue \u0026 15mm Scale Reducer","description":"\u003cdiv class=\"product__description\"\u003e\n\u003cdiv class=\"product-description-extended\"\u003e\n\u003cdiv class=\"product__description\"\u003e\n\u003cdiv class=\"product-description-extended\"\u003e\n\u003cdiv class=\"product__description\"\u003e\n\u003cdiv class=\"product-description-extended\"\u003e\n\u003cp data-start=\"93\" data-end=\"798\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"97\" data-end=\"186\"\u003eWorcester Bosch Greenstar 4000 24kW System Boiler Including Flue \u0026amp; 15mm Scale Reducer\u003c\/strong\u003e is a premium heating package designed for homes with a sealed heating system and a separate unvented hot water cylinder. Supplied with a \u003cstrong data-start=\"324\" data-end=\"347\"\u003ehorizontal flue kit\u003c\/strong\u003e and a \u003cstrong data-start=\"354\" data-end=\"376\"\u003e15mm Scale Reducer\u003c\/strong\u003e, this complete solution delivers reliable central heating while helping to reduce limescale build-up in hard water areas, protecting the boiler and maintaining long-term efficiency. Combining Worcester Bosch's renowned engineering, quiet operation, and smart control compatibility, the Greenstar 4000 is an ideal choice for homeowners seeking dependable and energy-efficient heating. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"800\" data-end=\"1222\"\u003eDesigned for medium-sized family homes, the \u003cstrong data-start=\"844\" data-end=\"881\"\u003eGreenstar 4000 24kW System Boiler\u003c\/strong\u003e features a contemporary design, intuitive full-colour display, and compatibility with Worcester Bosch EasyControl. Its compact dimensions and installer-friendly design make it an excellent replacement for older system boilers while delivering consistent heating performance and exceptional reliability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1224\" data-end=\"1227\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1229\" data-end=\"1244\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1246\" data-end=\"1886\"\u003e\n\u003cli data-section-id=\"1nwuvxk\" data-start=\"1246\" data-end=\"1266\"\u003e24kW System Boiler\u003c\/li\u003e\n\u003cli data-section-id=\"mxek2d\" data-start=\"1267\" data-end=\"1301\"\u003eIncludes \u003cstrong data-start=\"1278\" data-end=\"1301\"\u003eHorizontal Flue Kit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1sqr91l\" data-start=\"1302\" data-end=\"1335\"\u003eIncludes \u003cstrong data-start=\"1313\" data-end=\"1335\"\u003e15mm Scale Reducer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"778pqs\" data-start=\"1336\" data-end=\"1364\"\u003e\n\u003cstrong data-start=\"1338\" data-end=\"1352\"\u003eFuel Type:\u003c\/strong\u003e Natural Gas\u003c\/li\u003e\n\u003cli data-section-id=\"zlkba\" data-start=\"1365\" data-end=\"1437\"\u003eDesigned for sealed heating systems with a separate hot water cylinder\u003c\/li\u003e\n\u003cli data-section-id=\"ufviff\" data-start=\"1438\" data-end=\"1467\"\u003eErP \u003cstrong data-start=\"1444\" data-end=\"1455\"\u003eA Rated\u003c\/strong\u003e for heating\u003c\/li\u003e\n\u003cli data-section-id=\"17y6d5e\" data-start=\"1468\" data-end=\"1510\"\u003eUp to \u003cstrong data-start=\"1476\" data-end=\"1510\"\u003e94% central heating efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kwci12\" data-start=\"1511\" data-end=\"1533\"\u003eQuiet Mark certified\u003c\/li\u003e\n\u003cli data-section-id=\"1udaan\" data-start=\"1534\" data-end=\"1563\"\u003ePremium full-colour display\u003c\/li\u003e\n\u003cli data-section-id=\"1p0shaf\" data-start=\"1564\" data-end=\"1592\"\u003e\n\u003cstrong data-start=\"1566\" data-end=\"1581\"\u003eEasyControl\u003c\/strong\u003e compatible\u003c\/li\u003e\n\u003cli data-section-id=\"gb5uwd\" data-start=\"1593\" data-end=\"1611\"\u003eSolar compatible\u003c\/li\u003e\n\u003cli data-section-id=\"6kzyd4\" data-start=\"1612\" data-end=\"1659\"\u003eWide modulation range for improved efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"fxzaq2\" data-start=\"1660\" data-end=\"1689\"\u003eCompact wall-mounted design\u003c\/li\u003e\n\u003cli data-section-id=\"1lsf9su\" data-start=\"1690\" data-end=\"1886\"\u003e\n\u003cstrong data-start=\"1692\" data-end=\"1733\"\u003eUp to 10-Year manufacturer's warranty\u003c\/strong\u003e (subject to installation, registration, use of a Worcester Bosch system filter, and manufacturer's warranty terms) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1888\" data-end=\"1891\"\u003e\n\u003ch2 data-section-id=\"jqrqi2\" data-start=\"1893\" data-end=\"1928\"\u003eIdeal for Modern Heating Systems\u003c\/h2\u003e\n\u003cp data-start=\"1930\" data-end=\"2200\"\u003eThe \u003cstrong data-start=\"1934\" data-end=\"1987\"\u003eWorcester Bosch Greenstar 4000 24kW System Boiler\u003c\/strong\u003e is ideal for \u003cstrong data-start=\"2001\" data-end=\"2023\"\u003emedium-sized homes\u003c\/strong\u003e with a sealed heating system and a separate hot water cylinder. It delivers dependable heating performance while providing stored hot water efficiently throughout the property.\u003c\/p\u003e\n\u003cp data-start=\"2202\" data-end=\"2472\"\u003eThe included \u003cstrong data-start=\"2215\" data-end=\"2237\"\u003e15mm Scale Reducer\u003c\/strong\u003e helps minimise limescale formation, making this package particularly suitable for homes in hard water areas while helping to protect the boiler's heat exchanger and maintain long-term performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2474\" data-end=\"2477\"\u003e\n\u003ch2 data-section-id=\"rpdj3a\" data-start=\"2479\" data-end=\"2518\"\u003ePowerful Central Heating Performance\u003c\/h2\u003e\n\u003cp data-start=\"2520\" data-end=\"2918\"\u003eDelivering a \u003cstrong data-start=\"2533\" data-end=\"2564\"\u003e24kW central heating output\u003c\/strong\u003e, the Greenstar 4000 System Boiler provides powerful and efficient heating throughout the home. Its advanced condensing technology and wide modulation range automatically adjust the boiler's output to match heating demand, helping to reduce gas consumption while maintaining excellent comfort and lower energy bills. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2920\" data-end=\"2923\"\u003e\n\u003ch2 data-section-id=\"1henl9l\" data-start=\"2925\" data-end=\"2955\"\u003eCompact Contemporary Design\u003c\/h2\u003e\n\u003cp data-start=\"2957\" data-end=\"3083\"\u003eDesigned to fit neatly into modern homes, the Greenstar 4000 combines premium styling with practical installation flexibility.\u003c\/p\u003e\n\u003ch3 data-section-id=\"bpec4l\" data-start=\"3085\" data-end=\"3099\"\u003eDimensions\u003c\/h3\u003e\n\u003cul data-start=\"3101\" data-end=\"3158\"\u003e\n\u003cli data-section-id=\"1qr0f6k\" data-start=\"3101\" data-end=\"3120\"\u003e\n\u003cstrong data-start=\"3103\" data-end=\"3114\"\u003eHeight:\u003c\/strong\u003e 724mm\u003c\/li\u003e\n\u003cli data-section-id=\"1ferdmo\" data-start=\"3121\" data-end=\"3139\"\u003e\n\u003cstrong data-start=\"3123\" data-end=\"3133\"\u003eWidth:\u003c\/strong\u003e 400mm\u003c\/li\u003e\n\u003cli data-section-id=\"p2e4lp\" data-start=\"3140\" data-end=\"3158\"\u003e\n\u003cstrong data-start=\"3142\" data-end=\"3152\"\u003eDepth:\u003c\/strong\u003e 310mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3160\" data-end=\"3360\"\u003eThe included \u003cstrong data-start=\"3173\" data-end=\"3192\"\u003ehorizontal flue\u003c\/strong\u003e and \u003cstrong data-start=\"3197\" data-end=\"3219\"\u003e15mm Scale Reducer\u003c\/strong\u003e provide a complete installation package while helping to ensure reliable long-term system performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3362\" data-end=\"3365\"\u003e\n\u003ch2 data-section-id=\"ex875a\" data-start=\"3367\" data-end=\"3396\"\u003eAdvanced Energy Efficiency\u003c\/h2\u003e\n\u003cp data-start=\"3398\" data-end=\"3568\"\u003eRated \u003cstrong data-start=\"3404\" data-end=\"3413\"\u003eErP A\u003c\/strong\u003e with \u003cstrong data-start=\"3419\" data-end=\"3453\"\u003e94% central heating efficiency\u003c\/strong\u003e, the Greenstar 4000 uses advanced condensing technology to maximise heat recovery while reducing fuel consumption.\u003c\/p\u003e\n\u003cp data-start=\"3570\" data-end=\"3778\"\u003eIts wide modulation ratio allows the boiler to operate more efficiently during periods of lower heating demand, helping reduce running costs without compromising comfort. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3780\" data-end=\"3783\"\u003e\n\u003ch2 data-section-id=\"bvzj9p\" data-start=\"3785\" data-end=\"3823\"\u003eSmart Heating Control Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"3825\" data-end=\"4149\"\u003eThe Greenstar 4000 is fully compatible with \u003cstrong data-start=\"3869\" data-end=\"3900\"\u003eWorcester Bosch EasyControl\u003c\/strong\u003e, allowing homeowners to manage heating schedules remotely using a smartphone or tablet. It is also compatible with \u003cstrong data-start=\"4016\" data-end=\"4041\"\u003esolar thermal systems\u003c\/strong\u003e, providing greater flexibility for future renewable heating upgrades. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"4151\" data-end=\"4154\"\u003e\n\u003ch2 data-section-id=\"19rweb4\" data-start=\"4156\" data-end=\"4198\"\u003eReliable Performance \u0026amp; Easy Maintenance\u003c\/h2\u003e\n\u003cp data-start=\"4200\" data-end=\"4411\"\u003eBuilt to Worcester Bosch's renowned quality standards, the Greenstar 4000 features durable internal components, Quiet Mark certified operation, and an intuitive full-colour display for straightforward operation.\u003c\/p\u003e\n\u003cp data-start=\"4413\" data-end=\"4632\"\u003eIts installer-friendly layout, front-access servicing, and \u003cstrong data-start=\"4472\" data-end=\"4488\"\u003eSimpleSwitch\u003c\/strong\u003e installation features help reduce installation time while making future maintenance quick and convenient. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"4634\" data-end=\"4637\"\u003e\n\u003ch2 data-section-id=\"15okmn6\" data-start=\"4639\" data-end=\"4666\"\u003eWarranty \u0026amp; Peace of Mind\u003c\/h2\u003e\n\u003cp data-start=\"4668\" data-end=\"5018\"\u003eThe \u003cstrong data-start=\"4672\" data-end=\"4761\"\u003eWorcester Bosch Greenstar 4000 24kW System Boiler Including Flue \u0026amp; 15mm Scale Reducer\u003c\/strong\u003e includes \u003cstrong data-start=\"4771\" data-end=\"4814\"\u003eup to a 10-Year manufacturer's warranty\u003c\/strong\u003e when installed and registered in accordance with Worcester Bosch's qualifying warranty conditions, providing long-term confidence and dependable after-sales support. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"5020\" data-end=\"5023\"\u003e\n\u003ch2 data-section-id=\"12xjbv5\" data-start=\"5025\" data-end=\"5129\"\u003eWhy Choose the Worcester Bosch Greenstar 4000 24kW System Boiler Including Flue \u0026amp; 15mm Scale Reducer?\u003c\/h2\u003e\n\u003cul data-start=\"5131\" data-end=\"5487\"\u003e\n\u003cli data-section-id=\"lb8gtc\" data-start=\"5131\" data-end=\"5170\"\u003ePremium Worcester Bosch system boiler\u003c\/li\u003e\n\u003cli data-section-id=\"1inq391\" data-start=\"5171\" data-end=\"5196\"\u003e\u003cstrong data-start=\"5173\" data-end=\"5196\"\u003e24kW heating output\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"aj1sub\" data-start=\"5197\" data-end=\"5227\"\u003eIncludes \u003cstrong data-start=\"5208\" data-end=\"5227\"\u003eHorizontal Flue\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1sqr91l\" data-start=\"5228\" data-end=\"5261\"\u003eIncludes \u003cstrong data-start=\"5239\" data-end=\"5261\"\u003e15mm Scale Reducer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15a4ur8\" data-start=\"5262\" data-end=\"5299\"\u003eDesigned for sealed heating systems\u003c\/li\u003e\n\u003cli data-section-id=\"1ffkiuk\" data-start=\"5300\" data-end=\"5336\"\u003e\u003cstrong data-start=\"5302\" data-end=\"5336\"\u003e94% central heating efficiency\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1kwci12\" data-start=\"5337\" data-end=\"5359\"\u003eQuiet Mark certified\u003c\/li\u003e\n\u003cli data-section-id=\"50y3yf\" data-start=\"5360\" data-end=\"5384\"\u003eEasyControl compatible\u003c\/li\u003e\n\u003cli data-section-id=\"gb5uwd\" data-start=\"5385\" data-end=\"5403\"\u003eSolar compatible\u003c\/li\u003e\n\u003cli data-section-id=\"qsglj3\" data-start=\"5404\" data-end=\"5487\"\u003e\n\u003cstrong data-start=\"5406\" data-end=\"5447\"\u003eUp to 10-Year manufacturer's warranty\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"10btkw6\" data-start=\"5489\" data-end=\"5502\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mağazam","offers":[{"title":"Default Title","offer_id":49048294391963,"sku":null,"price":1345.53,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/2091\/3051\/files\/4000-fron-facing-1_1.webp?v=1784640473","url":"https:\/\/boilerlines.co.uk\/products\/worcester-bosch-greenstar-4000-24kw-system-boiler-including-flue-15mm-scale-reducer","provider":"Boiler Lines","version":"1.0","type":"link"}