{"product_id":"baxi-indirect-unvented-cylinder","title":"Baxi Indirect Unvented Cylinder","description":"\u003ch3\u003eBaxi Indirect Unvented Cylinder\u003c\/h3\u003e\n\nThe Baxi Indirect Unvented Cylinder is designed to deliver reliable, high-performance hot water for modern high-pressure heating systems. With an internal expansion system and a high-performance coil-in-coil heat exchanger, it combines practical installation features with efficient hot water recovery.\n\nThe range is available in 145L, 170L, 210L, 250L and 300L capacities, giving you flexibility to choose a cylinder size that matches the hot water requirements of your property. Whether you need a more compact 145L cylinder or greater storage for a higher-demand household, there is an option within the range to suit.\n\n\u003ch3\u003eSpace-Saving Internal Expansion\u003c\/h3\u003e\n\nAn internal floating baffle expansion system removes the need for a separate expansion vessel. This gives the cylinder a neat appearance while helping to save installation space and reduce fitting time.\n\nThe insulated temperature and pressure (T\u0026amp;P) valve and 50mm-thick cylinder insulation help retain heat within the cylinder. This can improve energy efficiency while keeping stored hot water at a useful temperature for longer.\n\n\u003ch3\u003eFast Hot Water Recovery\u003c\/h3\u003e\n\nThe Baxi Indirect Unvented Cylinder features a high-performance coil-in-coil heat exchanger, designed to provide exceptionally fast recovery times. This helps the cylinder replenish its hot water supply efficiently after periods of heavy use.\n\nThe cylinder can deliver up to 76 litres of hot water per minute at 3 bar pressure, providing strong flow performance for showers, baths and other household applications without the need for additional shower pumps or cold water storage tanks.\n\n\u003ch3\u003eDurable Duplex Stainless Steel Construction\u003c\/h3\u003e\n\nBuilt using high-grade duplex stainless steel, the cylinder offers excellent corrosion resistance alongside a strong strength-to-weight ratio. This robust construction is designed to provide dependable performance and long-term durability.\n\nThe cylinder is designed for high-pressure systems only, with a maximum operating pressure of 16 bar.\n\n\u003ch3\u003eAvailable Capacities\u003c\/h3\u003e\n\nThe Baxi Indirect Unvented Cylinder is available in the following capacities:\n\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e145L\u003c\/strong\u003e – a compact option for households with more moderate hot water requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e170L\u003c\/strong\u003e – provides additional storage while maintaining a practical size.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e210L\u003c\/strong\u003e – suitable for homes requiring a larger store of hot water.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e250L\u003c\/strong\u003e – offers substantial capacity for higher-demand households.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e300L\u003c\/strong\u003e – the largest option in the range, designed for properties with particularly high hot water demand.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIndirect unvented hot water cylinder\u003c\/li\u003e \u003cli\u003eAvailable in 145L, 170L, 210L, 250L and 300L capacities\u003c\/li\u003e \u003cli\u003eInternal floating baffle expansion system\u003c\/li\u003e \u003cli\u003eNo separate expansion vessel required\u003c\/li\u003e \u003cli\u003eHigh-performance coil-in-coil heat exchanger\u003c\/li\u003e \u003cli\u003eDesigned for exceptionally fast hot water recovery\u003c\/li\u003e \u003cli\u003eUp to 76L\/min flow rate at 3 bar pressure\u003c\/li\u003e \u003cli\u003e50mm-thick cylinder insulation\u003c\/li\u003e \u003cli\u003eInsulated T\u0026amp;P valve\u003c\/li\u003e \u003cli\u003eHigh-grade duplex stainless steel construction\u003c\/li\u003e \u003cli\u003eHigh corrosion resistance\u003c\/li\u003e \u003cli\u003eMaximum operating pressure of 16 bar\u003c\/li\u003e \u003cli\u003e22mm compression connections\u003c\/li\u003e \u003cli\u003eSuitable for high-pressure systems only\u003c\/li\u003e \u003cli\u003eErP rating: C\u003c\/li\u003e \u003cli\u003e15-year manufacturer's guarantee when registered, subject to terms and conditions\u003c\/li\u003e \u003cli\u003e2-year standard warranty\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Baxi\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Indirect unvented cylinder\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCapacities:\u003c\/strong\u003e 145L, 170L, 210L, 250L and 300L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex stainless steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCoil type:\u003c\/strong\u003e Coil-in-coil heat exchanger\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExpansion system:\u003c\/strong\u003e Internal floating baffle\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExpansion vessel:\u003c\/strong\u003e Not required\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlow rate:\u003c\/strong\u003e Up to 76L\/min at 3 bar\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum operating pressure:\u003c\/strong\u003e 16 bar\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConnection size:\u003c\/strong\u003e 22mm compression\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStandard dimensions:\u003c\/strong\u003e 553mm wide and 553mm deep; height varies by capacity\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eErP rating:\u003c\/strong\u003e C\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003eWhat capacities are available for the Baxi Indirect Unvented Cylinder?\u003c\/h4\u003e\n\nThe range is available in 145L, 170L, 210L, 250L and 300L capacities, allowing the cylinder to be matched to different household hot water requirements.\n\n\u003ch4\u003eDoes this Baxi cylinder need a separate expansion vessel?\u003c\/h4\u003e\n\nNo. The cylinder uses an internal floating baffle expansion system, so a separate expansion vessel is not required. This helps save space and can make installation more straightforward.\n\n\u003ch4\u003eWhat is the maximum hot water flow rate?\u003c\/h4\u003e\n\nThe cylinder can deliver up to 76 litres per minute at 3 bar pressure, providing strong hot water flow for domestic applications without requiring additional shower pumps or cold water storage tanks.","brand":"Baxi","offers":[{"title":"145L","offer_id":55209942843734,"sku":"181535","price":617.84,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":55209942876502,"sku":"181536","price":655.82,"currency_code":"GBP","in_stock":true},{"title":"210L","offer_id":55209942909270,"sku":"181537","price":702.49,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":55209942942038,"sku":"181538","price":756.29,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":55209942974806,"sku":"181539","price":817.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/baxi-indirect-unvented-cylinder-7770759.jpg?v=1788683470","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/baxi-indirect-unvented-cylinder","provider":"JJ Building Materials","version":"1.0","type":"link"}