{"product_id":"viessmann-60-100-500mm-flue-extension-7373223","title":"Viessmann 60\/100 500mm Flue Extension | 7373223","description":"\u003c!-- SEO Product Name: Viessmann 60\/100 500mm Flue Extension | 7373223 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#2B2B2B; line-height:1.6; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003eViessmann 60\/100mm 500mm Flue Extension\u003c\/strong\u003e is a short concentric straight section used to fine-tune the length of a Vitodens flue run where a full 1 metre extension would overshoot the required distance.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eCombining 500mm and 1 metre extensions gives installers \u003cstrong\u003eprecise control over final flue length\u003c\/strong\u003e, helping keep the run within the boiler's maximum permitted flue distance while still reaching the intended termination point.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:20px -4px 24px -4px;\"\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:120px; background:#F7FAFA; border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:6px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#00625D;\"\u003e60\/100mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#5A5A5A; margin-top:4px; line-height:1.3;\"\u003eFlue diameter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:120px; background:#F7FAFA; border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:6px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#00625D;\"\u003e500mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#5A5A5A; margin-top:4px; line-height:1.3;\"\u003eExtension length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:120px; background:#F7FAFA; border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:6px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#00625D;\"\u003e\u003cspan style=\"color:#008377CF;\"\u003eStraight\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#5A5A5A; margin-top:4px; line-height:1.3;\"\u003eSection type\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:120px; background:#F7FAFA; border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:6px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#00625D;\"\u003eCuttable\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#5A5A5A; margin-top:4px; line-height:1.3;\"\u003eOn-site trimming\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:120px; background:#F7FAFA; border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:6px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#00625D;\"\u003eDVGW-VP 113\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#5A5A5A; margin-top:4px; line-height:1.3;\"\u003eSystem certification\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px; min-width:120px; background:#F7FAFA; border:1px solid #D9EDEA; border-top:3px solid #008377CF; border-radius:6px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:800; color:#00625D;\"\u003e\u003cspan style=\"color:#008377CF;\"\u003eVitodens\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#5A5A5A; margin-top:4px; line-height:1.3;\"\u003eCompatible range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #E0942A; border-radius:4px; padding:14px 16px; margin:0 0 20px 0; display:flex; align-items:flex-start; gap:10px;\"\u003e\n\u003cspan style=\"font-size:18px; line-height:1;\"\u003e🛈\u003c\/span\u003e\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.55;\"\u003e\n\u003cstrong style=\"color:#E0942A;\"\u003ePlease Note:\u003c\/strong\u003e This flue system has been tested and CE-designated as one structural unit with the Vitodens boiler range in accordance with DVGW-VP 113. Only this flue system may be used together with compatible Vitodens boilers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:0 -6px 24px -6px;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#FFFFFF; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:6px;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003ePrecise length adjustment\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#3A3A3A; line-height:1.55;\"\u003eA 500mm section lets installers \u003cstrong\u003efine-tune the total flue run\u003c\/strong\u003e where 1 metre lengths alone would leave the terminal in the wrong position.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#FFFFFF; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:6px;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003e60\/100mm concentric diameter\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#3A3A3A; line-height:1.55;\"\u003eMatches the standard Vitodens balanced flue system for \u003cstrong\u003eseamless integration\u003c\/strong\u003e with bends, terminals and other extensions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#FFFFFF; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:6px;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eWorks on horizontal or vertical runs\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#3A3A3A; line-height:1.55;\"\u003eSuitable for use in both \u003cstrong\u003ehorizontal wall-terminated\u003c\/strong\u003e and \u003cstrong\u003evertical roof-terminated\u003c\/strong\u003e flue configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#FFFFFF; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:6px;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eSimple push-fit jointing\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#3A3A3A; line-height:1.55;\"\u003eConnects using the same \u003cstrong\u003epush-fit method\u003c\/strong\u003e as the rest of the Vitodens flue range.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#FFFFFF; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:6px;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eCombines with other extensions\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#3A3A3A; line-height:1.55;\"\u003eCan be used alongside 1m, 1.95m and 2.95m extensions to build up \u003cstrong\u003elonger flue runs\u003c\/strong\u003e as required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:240px; background:#FFFFFF; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:6px;\"\u003e\n\u003cdiv style=\"font-size:15.5px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eDurable, weather-resistant material\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px; color:#3A3A3A; line-height:1.55;\"\u003eManufactured to the same specification as the wider flue range for \u003cstrong\u003elong-term reliability\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:19px; font-weight:700; color:#00625D; margin:32px 0 14px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSpecification\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:13.5px; letter-spacing:.04em; text-transform:uppercase; padding:9px 14px; border-radius:6px 6px 0 0; margin-top:14px;\"\u003eFlue Component\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:none; border-radius:0 0 6px 6px; overflow:hidden; margin-bottom:6px;\"\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 46%; padding:9px 14px; font-weight:600; font-size:14px; color:#333333;\"\u003eDiameter\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 14px; font-size:14px; color:#222222;\"\u003e60\/100mm concentric\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 46%; padding:9px 14px; font-weight:600; font-size:14px; color:#333333;\"\u003eLength\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 14px; font-size:14px; color:#222222;\"\u003e500mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 46%; padding:9px 14px; font-weight:600; font-size:14px; color:#333333;\"\u003eType\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 14px; font-size:14px; color:#222222;\"\u003eStraight extension section\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#FFFFFF; font-weight:700; font-size:13.5px; letter-spacing:.04em; text-transform:uppercase; padding:9px 14px; border-radius:6px 6px 0 0; margin-top:14px;\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-top:none; border-radius:0 0 6px 6px; overflow:hidden; margin-bottom:6px;\"\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 46%; padding:9px 14px; font-weight:600; font-size:14px; color:#333333;\"\u003eBoiler range\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 14px; font-size:14px; color:#222222;\"\u003eViessmann Vitodens gas condensing boilers\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F7FAFA; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 46%; padding:9px 14px; font-weight:600; font-size:14px; color:#333333;\"\u003eSystem certification\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 14px; font-size:14px; color:#222222;\"\u003eCE-designated with Vitodens as one structural unit to DVGW-VP 113\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 46%; padding:9px 14px; font-weight:600; font-size:14px; color:#333333;\"\u003eRelated accessories\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 14px; font-size:14px; color:#222222;\"\u003e1 metre, 1.95m and 2.95m flue extensions, bends, slide coupling\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"padding:13px 16px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eCan this 500mm extension be cut to a shorter length on site?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:13px 16px 15px 16px; font-size:14.5px; color:#3A3A3A; line-height:1.6; border-top:1px solid #D9EDEA; background:#FFFFFF;\"\u003eThe standard 500mm and 1 metre extensions in this range can generally be trimmed to length; the longer 1.95m and 2.95m extensions are supplied as uncuttable fixed lengths. Always confirm cutting suitability against the current installation instructions before trimming.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"padding:13px 16px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eHow many extensions can I use in one flue run?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:13px 16px 15px 16px; font-size:14.5px; color:#3A3A3A; line-height:1.6; border-top:1px solid #D9EDEA; background:#FFFFFF;\"\u003eThe maximum number of extensions and bends depends on the total permissible flue length for the specific Vitodens boiler model — refer to the boiler's installation and service instructions for the exact figure.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #D9EDEA; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"padding:13px 16px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eCan I mix 500mm and 1 metre extensions in the same run?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:13px 16px 15px 16px; font-size:14.5px; color:#3A3A3A; line-height:1.6; border-top:1px solid #D9EDEA; background:#FFFFFF;\"\u003eYes, 500mm and 1 metre sections are designed to be combined freely to reach the exact flue length required for the installation.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":65934927724893,"sku":"7373223","price":39.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Viessmann60-100500mmFlueExtension7373223.jpg?v=1789542850","url":"https:\/\/qualityheating.co.uk\/products\/viessmann-60-100-500mm-flue-extension-7373223","provider":"AIZO Quality Heating","version":"1.0","type":"link"}