{"product_id":"worcester-greenstar-highflow-550cdi-erp-lpg","title":"Worcester Greenstar Highflow 550CDI ErP LPG","description":"\u003cp\u003eWorcester Greenstar Highflow 550CDi ErP LPG Combi Boiler\u003c\/p\u003e\n\n\u003cp\u003eThe Worcester Greenstar Highflow 550CDi ErP LPG is a powerful, floor-standing combination boiler built to meet the heating and hot water demands of larger homes. Designed by Worcester Bosch, one of the UK’s most trusted boiler manufacturers, this model provides high efficiency, excellent reliability, and impressive performance for households that need plenty of hot water — fast.\u003c\/p\u003e\n\n\u003cp\u003eIf your home isn’t connected to the mains gas supply, this LPG version offers an ideal off-grid heating solution without compromising on comfort or performance. Its condensing technology ensures energy is used as efficiently as possible, reducing both fuel consumption and emissions.\u003c\/p\u003e\n\n\u003cp\u003eExceptional Efficiency and Performance\u003c\/p\u003e\n\n\u003cp\u003eWith a rated heat output of 31 kW, the Greenstar Highflow 550CDi is built for homes with higher heating and hot water needs. It delivers an outstanding seasonal space heating efficiency of 92%, helping to keep running costs low and comfort levels high.\u003c\/p\u003e\n\n\u003cp\u003eIts water heating efficiency of 71% and XL load profile mean you’ll enjoy powerful, consistent hot water across multiple taps or showers at once. Whether you’re filling a bath or running several bathrooms simultaneously, this boiler has the power to keep up with your family’s lifestyle.\u003c\/p\u003e\n\n\u003cp\u003eQuiet, Reliable and Built to Last\u003c\/p\u003e\n\n\u003cp\u003eEven with its high performance, the Greenstar Highflow 550CDi operates quietly, producing just 52 dB of sound — about the same level as a normal conversation. Worcester Bosch has designed this model for long-term reliability, with robust internal components and simple maintenance requirements.\u003c\/p\u003e\n\n\u003cp\u003eAs a condensing combination boiler, it doesn’t require a separate hot water cylinder, freeing up valuable space in your home. It’s also equipped with energy-saving features to minimize standby losses and improve overall efficiency.\u003c\/p\u003e\n\n\u003cp\u003eTechnical Overview\u003c\/p\u003e\n\n\u003cp\u003eThis model offers the following key technical details:\u003c\/p\u003e\n\n\u003cp\u003eEnergy Efficiency Class: A (Heating) \/ B (Water Heating)\u003c\/p\u003e\n\n\u003cp\u003eRated Heat Output: 31 kW\u003c\/p\u003e\n\n\u003cp\u003eSeasonal Space Heating Efficiency (?S): 92%\u003c\/p\u003e\n\n\u003cp\u003eWater Heating Efficiency (?wh): 71%\u003c\/p\u003e\n\n\u003cp\u003eSound Power Level (Indoors): 52 dB\u003c\/p\u003e\n\n\u003cp\u003eNOx Emissions: 23 mg\/kWh\u003c\/p\u003e\n\n\u003cp\u003eAnnual Fuel Consumption: 22 GJ\u003c\/p\u003e\n\n\u003cp\u003eAnnual Electricity Consumption: 79 kWh\u003c\/p\u003e\n\n\u003cp\u003eCondensing Boiler: Yes\u003c\/p\u003e\n\n\u003cp\u003eCombination Heater: Yes\u003c\/p\u003e\n\n\u003cp\u003eInstallation and Maintenance\u003c\/p\u003e\n\n\u003cp\u003eInstallation should always be carried out by a qualified Gas Safe registered engineer. The product comes with detailed installation and operating manuals that include all necessary safety, recycling, and maintenance information. Following these guidelines will help ensure optimal performance and a long service life.\u003c\/p\u003e\n\n\u003cp\u003eThe Greenstar Highflow 550CDi ErP LPG is the perfect choice for large family homes, multi-bathroom properties, and off-grid households seeking a dependable and efficient heating solution.\u003c\/p\u003e\n\n\u003cp\u003eFrequently Asked Questions (FAQs)\u003cbr\u003e\nHow powerful is the Worcester Greenstar Highflow 550CDi LPG boiler?\u003c\/p\u003e\n\n\u003cp\u003eThe Highflow 550CDi has a rated heat output of 31 kW, making it one of the most powerful combination boilers in the Worcester Bosch range. It’s capable of meeting the demands of large homes with multiple bathrooms or high hot water usage.\u003c\/p\u003e\n\n\u003cp\u003eIs this model suitable for homes without mains gas?\u003c\/p\u003e\n\n\u003cp\u003eYes. This boiler runs on LPG (Liquefied Petroleum Gas), making it ideal for rural or off-grid homes where mains gas isn’t available. It delivers the same performance and efficiency you’d expect from a natural gas model.\u003c\/p\u003e\n\n\u003cp\u003eDoes the Greenstar Highflow 550CDi require a separate hot water tank?\u003c\/p\u003e\n\n\u003cp\u003eNo. As a combination boiler, it heats water directly from the mains whenever you need it, meaning you don’t need a separate hot water cylinder. This saves space while still providing excellent flow rates.\u003c\/p\u003e\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":51771446985046,"sku":"143408","price":3397.37,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/worcester-greenstar-highflow-550cdi-erp-lpg-4323208.jpg?v=1772639529","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/worcester-greenstar-highflow-550cdi-erp-lpg","provider":"JJ Building Materials","version":"1.0","type":"link"}