{"product_id":"worcester-bosch-4000-30kw-combi-boiler-with-15mm-scale-reducer","title":"Worcester Bosch 4000 30kW Combi Boiler with 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=\"70\" data-end=\"699\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"74\" data-end=\"140\"\u003eWorcester Bosch 4000 30kW Combi Boiler with 15mm Scale Reducer\u003c\/strong\u003e is a premium heating package designed to deliver powerful central heating and exceptional mains-pressure hot water for medium to larger homes. Supplied with a \u003cstrong data-start=\"300\" data-end=\"322\"\u003e15mm Scale Reducer\u003c\/strong\u003e, this complete solution helps minimise limescale build-up in hard water areas, protecting the boiler while maintaining long-term efficiency and reliability. Built on Worcester Bosch's award-winning Greenstar platform, the Greenstar 4000 combines outstanding performance with ultra-quiet operation and intelligent energy-saving technology. \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=\"701\" data-end=\"1134\"\u003eFeaturing a durable stainless steel heat exchanger, \u003cstrong data-start=\"753\" data-end=\"766\"\u003eQuickTap®\u003c\/strong\u003e hot water technology, a modern full-colour display, and compatibility with \u003cstrong data-start=\"842\" data-end=\"857\"\u003eEasyControl\u003c\/strong\u003e smart heating controls, the Greenstar 4000 offers an excellent balance of efficiency, comfort, and ease of use. Its compact cupboard-fit design makes it suitable for a wide range of installation locations without compromising performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1136\" data-end=\"1139\"\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1141\" data-end=\"1156\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1158\" data-end=\"1862\"\u003e\n\u003cli data-section-id=\"137fhlq\" data-start=\"1158\" data-end=\"1203\"\u003e30kW Natural Gas Combination (Combi) Boiler\u003c\/li\u003e\n\u003cli data-section-id=\"1sqr91l\" data-start=\"1204\" data-end=\"1237\"\u003eIncludes \u003cstrong data-start=\"1215\" data-end=\"1237\"\u003e15mm Scale Reducer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"778pqs\" data-start=\"1238\" data-end=\"1266\"\u003e\n\u003cstrong data-start=\"1240\" data-end=\"1254\"\u003eFuel Type:\u003c\/strong\u003e Natural Gas\u003c\/li\u003e\n\u003cli data-section-id=\"1ml6vqd\" data-start=\"1267\" data-end=\"1301\"\u003eInstant mains-pressure hot water\u003c\/li\u003e\n\u003cli data-section-id=\"b7wgm9\" data-start=\"1302\" data-end=\"1343\"\u003eNo separate hot water cylinder required\u003c\/li\u003e\n\u003cli data-section-id=\"1chququ\" data-start=\"1344\" data-end=\"1387\"\u003eErP \u003cstrong data-start=\"1350\" data-end=\"1361\"\u003eA Rated\u003c\/strong\u003e for heating and hot water\u003c\/li\u003e\n\u003cli data-section-id=\"1olqsw9\" data-start=\"1388\" data-end=\"1414\"\u003eUp to \u003cstrong data-start=\"1396\" data-end=\"1414\"\u003e94% efficiency\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9eej40\" data-start=\"1415\" data-end=\"1438\"\u003eSuper quiet operation\u003c\/li\u003e\n\u003cli data-section-id=\"1dib03q\" data-start=\"1439\" data-end=\"1465\"\u003e\n\u003cstrong data-start=\"1441\" data-end=\"1455\"\u003eQuiet Mark\u003c\/strong\u003e certified\u003c\/li\u003e\n\u003cli data-section-id=\"2apaa8\" data-start=\"1466\" data-end=\"1509\"\u003e\n\u003cstrong data-start=\"1468\" data-end=\"1481\"\u003eQuickTap®\u003c\/strong\u003e hot water pre-heat function\u003c\/li\u003e\n\u003cli data-section-id=\"16bhj92\" data-start=\"1510\" data-end=\"1550\"\u003eStainless steel primary heat exchanger\u003c\/li\u003e\n\u003cli data-section-id=\"1yic0b3\" data-start=\"1551\" data-end=\"1576\"\u003eFull-colour LCD display\u003c\/li\u003e\n\u003cli data-section-id=\"1jqow0c\" data-start=\"1577\" data-end=\"1626\"\u003eCompatible with \u003cstrong data-start=\"1595\" data-end=\"1626\"\u003eWorcester Bosch EasyControl\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h5pzdz\" data-start=\"1627\" data-end=\"1671\"\u003eIntelligent boiler modulation (up to 1:10)\u003c\/li\u003e\n\u003cli data-section-id=\"bg2k3b\" data-start=\"1672\" data-end=\"1701\"\u003eCompact cupboard-fit design\u003c\/li\u003e\n\u003cli data-section-id=\"1tgrvm\" data-start=\"1702\" data-end=\"1862\"\u003e\n\u003cstrong data-start=\"1704\" data-end=\"1739\"\u003e10-Year manufacturer's warranty\u003c\/strong\u003e (subject to installation by a Worcester Accredited Installer and registration terms) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1864\" data-end=\"1867\"\u003e\n\u003ch2 data-section-id=\"u510j2\" data-start=\"1869\" data-end=\"1904\"\u003eIdeal for Medium to Larger Homes\u003c\/h2\u003e\n\u003cp data-start=\"1906\" data-end=\"2218\"\u003eThe \u003cstrong data-start=\"1910\" data-end=\"1952\"\u003eWorcester Bosch 4000 30kW Combi Boiler\u003c\/strong\u003e is ideal for \u003cstrong data-start=\"1966\" data-end=\"1992\"\u003emedium to larger homes\u003c\/strong\u003e with one or two bathrooms. It delivers both central heating and domestic hot water directly from the mains, eliminating the need for a separate hot water cylinder while providing reliable hot water for everyday household use.\u003c\/p\u003e\n\u003cp data-start=\"2220\" data-end=\"2408\"\u003eThe included \u003cstrong data-start=\"2233\" data-end=\"2255\"\u003e15mm Scale Reducer\u003c\/strong\u003e helps reduce limescale formation, making this package particularly suitable for homes located in hard water areas. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2410\" data-end=\"2413\"\u003e\n\u003ch2 data-section-id=\"1y0ifeu\" data-start=\"2415\" data-end=\"2454\"\u003ePowerful Heating \u0026amp; Instant Hot Water\u003c\/h2\u003e\n\u003cp data-start=\"2456\" data-end=\"2744\"\u003eDelivering \u003cstrong data-start=\"2467\" data-end=\"2501\"\u003e30kW domestic hot water output\u003c\/strong\u003e and a \u003cstrong data-start=\"2508\" data-end=\"2552\"\u003e12.3 litres per minute flow rate (Δ35°C)\u003c\/strong\u003e, the Greenstar 4000 provides fast, consistent hot water for showers, baths, and taps while maintaining efficient central heating throughout the property. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2746\" data-end=\"2959\"\u003eIts innovative \u003cstrong data-start=\"2761\" data-end=\"2774\"\u003eQuickTap®\u003c\/strong\u003e technology pre-heats the plate heat exchanger, reducing waiting time for hot water and helping minimise water wastage without sacrificing comfort. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2961\" data-end=\"2964\"\u003e\n\u003ch2 data-section-id=\"11nmlxs\" data-start=\"2966\" data-end=\"2983\"\u003eCompact Design\u003c\/h2\u003e\n\u003cp data-start=\"2985\" data-end=\"3168\"\u003eDespite its higher output, the Greenstar 4000 retains a compact design that fits neatly inside a standard kitchen cupboard, making it suitable for modern homes where space is limited.\u003c\/p\u003e\n\u003ch3 data-section-id=\"bpec4l\" data-start=\"3170\" data-end=\"3184\"\u003eDimensions\u003c\/h3\u003e\n\u003cul data-start=\"3186\" data-end=\"3243\"\u003e\n\u003cli data-section-id=\"1qr0f6k\" data-start=\"3186\" data-end=\"3205\"\u003e\n\u003cstrong data-start=\"3188\" data-end=\"3199\"\u003eHeight:\u003c\/strong\u003e 724mm\u003c\/li\u003e\n\u003cli data-section-id=\"1ferdmo\" data-start=\"3206\" data-end=\"3224\"\u003e\n\u003cstrong data-start=\"3208\" data-end=\"3218\"\u003eWidth:\u003c\/strong\u003e 400mm\u003c\/li\u003e\n\u003cli data-section-id=\"p2e4lp\" data-start=\"3225\" data-end=\"3243\"\u003e\n\u003cstrong data-start=\"3227\" data-end=\"3237\"\u003eDepth:\u003c\/strong\u003e 310mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3245\" data-end=\"3459\"\u003eThe included \u003cstrong data-start=\"3258\" data-end=\"3280\"\u003e15mm Scale Reducer\u003c\/strong\u003e provides additional protection against limescale, helping maintain optimum boiler performance and reduce long-term maintenance requirements. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3461\" data-end=\"3464\"\u003e\n\u003ch2 data-section-id=\"ex875a\" data-start=\"3466\" data-end=\"3495\"\u003eAdvanced Energy Efficiency\u003c\/h2\u003e\n\u003cp data-start=\"3497\" data-end=\"3674\"\u003eRated \u003cstrong data-start=\"3503\" data-end=\"3512\"\u003eErP A\u003c\/strong\u003e for both heating and hot water efficiency, the Greenstar 4000 delivers up to \u003cstrong data-start=\"3590\" data-end=\"3608\"\u003e94% efficiency\u003c\/strong\u003e, helping reduce gas consumption and lower household energy bills.\u003c\/p\u003e\n\u003cp data-start=\"3676\" data-end=\"3911\"\u003eIts intelligent condensing technology and advanced modulation enable the boiler to operate efficiently across varying heating demands, providing excellent seasonal performance and improved comfort. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3913\" data-end=\"3916\"\u003e\n\u003ch2 data-section-id=\"bvzj9p\" data-start=\"3918\" data-end=\"3956\"\u003eSmart Heating Control Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"3958\" data-end=\"4227\"\u003eThe Greenstar 4000 is fully compatible with \u003cstrong data-start=\"4002\" data-end=\"4033\"\u003eWorcester Bosch EasyControl\u003c\/strong\u003e, enabling homeowners to control heating remotely, create personalised schedules, and maximise energy efficiency through intelligent temperature management. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"4229\" data-end=\"4232\"\u003e\n\u003ch2 data-section-id=\"19rweb4\" data-start=\"4234\" data-end=\"4276\"\u003eReliable Performance \u0026amp; Easy Maintenance\u003c\/h2\u003e\n\u003cp data-start=\"4278\" data-end=\"4514\"\u003eDesigned with Worcester Bosch's renowned engineering quality, the Greenstar 4000 features a \u003cstrong data-start=\"4370\" data-end=\"4404\"\u003estainless steel heat exchanger\u003c\/strong\u003e, installer-friendly internal layout, and a modern full-colour interface for simple operation and diagnostics.\u003c\/p\u003e\n\u003cp data-start=\"4516\" data-end=\"4743\"\u003eIts \u003cstrong data-start=\"4520\" data-end=\"4534\"\u003eQuiet Mark\u003c\/strong\u003e certification makes it one of the quietest boilers in its class, making it particularly suitable for installation in kitchens, utility rooms, and open-plan living spaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"4745\" data-end=\"4748\"\u003e\n\u003ch2 data-section-id=\"15okmn6\" data-start=\"4750\" data-end=\"4777\"\u003eWarranty \u0026amp; Peace of Mind\u003c\/h2\u003e\n\u003cp data-start=\"4779\" data-end=\"5093\"\u003eThe \u003cstrong data-start=\"4783\" data-end=\"4849\"\u003eWorcester Bosch 4000 30kW Combi Boiler with 15mm Scale Reducer\u003c\/strong\u003e includes a \u003cstrong data-start=\"4861\" data-end=\"4896\"\u003e10-Year manufacturer's warranty\u003c\/strong\u003e when installed with a Worcester Bosch system filter by a Worcester Accredited Installer and registered in accordance with the manufacturer's warranty terms. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"5095\" data-end=\"5098\"\u003e\n\u003ch2 data-section-id=\"eiu2kz\" data-start=\"5100\" data-end=\"5181\"\u003eWhy Choose the Worcester Bosch 4000 30kW Combi Boiler with 15mm Scale Reducer?\u003c\/h2\u003e\n\u003cul data-start=\"5183\" data-end=\"5559\"\u003e\n\u003cli data-section-id=\"1uqrhae\" data-start=\"5183\" data-end=\"5228\"\u003ePremium boiler and scale protection package\u003c\/li\u003e\n\u003cli data-section-id=\"1db895u\" data-start=\"5229\" data-end=\"5261\"\u003ePowerful \u003cstrong data-start=\"5240\" data-end=\"5248\"\u003e30kW\u003c\/strong\u003e combi boiler\u003c\/li\u003e\n\u003cli data-section-id=\"b4wp0q\" data-start=\"5262\" data-end=\"5290\"\u003e\n\u003cstrong data-start=\"5264\" data-end=\"5279\"\u003eNatural Gas\u003c\/strong\u003e compatible\u003c\/li\u003e\n\u003cli data-section-id=\"1bkpqf\" data-start=\"5291\" data-end=\"5336\"\u003e\n\u003cstrong data-start=\"5293\" data-end=\"5307\"\u003e12.3 L\/min\u003c\/strong\u003e domestic hot water flow rate\u003c\/li\u003e\n\u003cli data-section-id=\"1sqr91l\" data-start=\"5337\" data-end=\"5370\"\u003eIncludes \u003cstrong data-start=\"5348\" data-end=\"5370\"\u003e15mm Scale Reducer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kwci12\" data-start=\"5371\" data-end=\"5393\"\u003eQuiet Mark certified\u003c\/li\u003e\n\u003cli data-section-id=\"1xcvtl2\" data-start=\"5394\" data-end=\"5426\"\u003eQuickTap® hot water technology\u003c\/li\u003e\n\u003cli data-section-id=\"50y3yf\" data-start=\"5427\" data-end=\"5451\"\u003eEasyControl compatible\u003c\/li\u003e\n\u003cli data-section-id=\"bg2k3b\" data-start=\"5452\" data-end=\"5481\"\u003eCompact cupboard-fit design\u003c\/li\u003e\n\u003cli data-section-id=\"x19j29\" data-start=\"5482\" data-end=\"5559\"\u003e\u003cstrong data-start=\"5484\" data-end=\"5519\"\u003e10-Year manufacturer's warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\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":49046155559067,"sku":null,"price":1195.0,"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-4000-30kw-combi-boiler-with-15mm-scale-reducer","provider":"Boiler Lines","version":"1.0","type":"link"}