{"product_id":"ariston-horizontal-coaxial-kit-vertical-starter-60-100mm-3318074-he-boiler-flue-bundle","title":"Ariston Horizontal Coaxial Kit + Vertical Starter 60\/100mm 3318074 HE Boiler Flue Bundle","description":"\u003c!-- SEO Product Name: Ariston Horizontal Coaxial Kit + Vertical Starter 60\/100mm 3318074 HE Boiler Flue Bundle --\u003e\n\u003cdiv style=\"font-size:16px;font-family:Arial,sans-serif;color:#222;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAriston Horizontal Coaxial Kit + Vertical Starter (Part No. 3318074)\u003c\/strong\u003e is the \u003cstrong\u003estandard dual-option flue bundle\u003c\/strong\u003e for Ariston HE condensing boilers, combining the \u003cstrong\u003e3318073 Horizontal Coaxial Kit (1000mm)\u003c\/strong\u003e and the \u003cstrong\u003e3318079 Vertical Starter\u003c\/strong\u003e in a single box. It is listed in Ariston's own range as the \u003cstrong\u003eprimary flue accessory\u003c\/strong\u003e for the \u003cstrong\u003eE-Combi ONE, Clas ONE, Clas System ONE, Genus ONE, Alteas ONE, and Alteas ONE+ NET\u003c\/strong\u003e — the complete HE ONE Series. Buying the bundle gives the installer the horizontal terminal ready for immediate through-wall installation, while the vertical starter is available on the same job if the final flue route requires a vertical exit instead — without a second parts order. The \u003cstrong\u003eØ60\/100 mm coaxial system\u003c\/strong\u003e handles both combustion gas exhaust and fresh combustion air intake in a single concentric pipe, in line with BS 5440-1:2008 for room-sealed appliances.\u003c\/p\u003e\n\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:10px;margin:22px 0;\"\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;border-radius:8px;padding:14px 18px;flex:1 1 130px;text-align:center;\"\u003e\n    \u003cdiv style=\"font-size:18px;font-weight:700;\"\u003e3318073\u003c\/div\u003e\n    \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eHorizontal Kit — Included\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;border-radius:8px;padding:14px 18px;flex:1 1 130px;text-align:center;\"\u003e\n    \u003cdiv style=\"font-size:18px;font-weight:700;\"\u003e3318079\u003c\/div\u003e\n    \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eVertical Starter — Included\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;border-radius:8px;padding:14px 18px;flex:1 1 130px;text-align:center;\"\u003e\n    \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003eØ60\/100\u003c\/div\u003e\n    \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eCoaxial Diameter\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;border-radius:8px;padding:14px 18px;flex:1 1 130px;text-align:center;\"\u003e\n    \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003e1000 mm\u003c\/div\u003e\n    \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eHorizontal Kit Length\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;border-radius:8px;padding:14px 18px;flex:1 1 130px;text-align:center;\"\u003e\n    \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003eHE Range\u003c\/div\u003e\n    \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eBoiler Compatibility\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fdecea;border-left:4px solid #c0392b;padding:14px 16px;border-radius:6px;margin:18px 0;\"\u003e\n  \u003cstrong\u003e⚠ Gas Safe Registered Installer Required:\u003c\/strong\u003e Flue installation must be carried out by a \u003cstrong\u003eGas Safe registered engineer\u003c\/strong\u003e in compliance with current Gas Safety Regulations, Building Regulations, and BS 5440-1:2008. All terminal positions must observe the required clearances from openings, gutters, and other obstructions as specified in the boiler installation manual.\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fff3cd;border-left:4px solid #e6a817;padding:14px 16px;border-radius:6px;margin:18px 0;\"\u003e\n  \u003cstrong\u003e⚠ Vertical Flue Terminal Kit Not Included:\u003c\/strong\u003e The 3318074 bundle includes the \u003cstrong\u003evertical starter (3318079) but not the vertical flue terminal kit\u003c\/strong\u003e. For a vertical installation, the correct vertical flue terminal kit must also be purchased:\n  \u003cul style=\"margin:8px 0 0 0;padding-left:20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3318080\u003c\/strong\u003e — Vertical Flue with Black Terminal (125mm, domestic HE)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3318081\u003c\/strong\u003e — Vertical Flue with Red Terminal (125mm, domestic HE)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3319235\u003c\/strong\u003e — Vertical Flue with Black Terminal (100mm, leisure\/caravan only)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#e6f4f3;border-left:4px solid #008377;padding:14px 16px;border-radius:6px;margin:18px 0;\"\u003e\n  \u003cstrong\u003eℹ What's Included in 3318074:\u003c\/strong\u003e\n  \u003cul style=\"margin:8px 0 0 0;padding-left:20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHorizontal Coaxial Kit (3318073)\u003c\/strong\u003e — Ø60\/100, 1000mm length, push-fit horizontal wall terminal with weather cap, clamp, and seals\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVertical Starter (3318079)\u003c\/strong\u003e — boiler manifold clamp adaptor with push-fit Ø60\/100 socket for vertical flue kits\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp style=\"margin:8px 0 0 0;\"\u003eExtensions, elbows, and vertical terminal kits are all available separately in the HE Ø60\/100 accessory range.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:24px 0;\"\u003e\n\n  \u003cdiv style=\"border:1px solid #ddd;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-size:16px;font-weight:700;border-bottom:2px solid #008377;padding-bottom:6px;margin-bottom:10px;\"\u003eBoth Flue Routes in One Order\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe 3318074 is particularly useful for installers working across multiple jobs — the \u003cstrong\u003ehorizontal kit covers the most common route\u003c\/strong\u003e while the \u003cstrong\u003evertical starter is available if needed\u003c\/strong\u003e without a return trip to the merchant. On multi-unit developments or managed holiday parks where some units route horizontally and others vertically, a single order covers both scenarios.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border:1px solid #ddd;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-size:16px;font-weight:700;border-bottom:2px solid #008377;padding-bottom:6px;margin-bottom:10px;\"\u003eOfficial Ariston HE Standard Flue\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eListed directly in Ariston's UK product range catalogue as the \u003cstrong\u003estandard flue accessory for the entire HE ONE Series\u003c\/strong\u003e — E-Combi ONE, Clas ONE, Genus ONE, Alteas ONE. This is the Ariston-recommended starting point for any HE condensing boiler installation, used across Ariston's own authorised installer network.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border:1px solid #ddd;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-size:16px;font-weight:700;border-bottom:2px solid #008377;padding-bottom:6px;margin-bottom:10px;\"\u003eExtendable with HE Accessories\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe 1000mm horizontal kit accommodates most standard wall thicknesses and simple straight runs. For longer or more complex routes, the full HE Ø60\/100 accessory range extends it: \u003cstrong\u003e3318077 (1m extension)\u003c\/strong\u003e, \u003cstrong\u003e3318078 (500mm extension)\u003c\/strong\u003e, \u003cstrong\u003e3318075 (90° elbow)\u003c\/strong\u003e, \u003cstrong\u003e3318076 (45° bend pair)\u003c\/strong\u003e. Maximum permissible run varies by boiler output — refer to the installation manual.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:24px 0;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:15px;\"\u003e\n  \u003ctr style=\"background:#008377CF;color:#fff;\"\u003e\n    \u003cth style=\"padding:10px 12px;text-align:left;\" colspan=\"2\"\u003eSpecifications — 3318074 Horizontal Coaxial Kit + Vertical Starter\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e3318074\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eContents\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003eHorizontal Coaxial Kit 3318073 (1000mm) + Vertical Starter 3318079\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eFlue System\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003eHE Ø60\/100 mm coaxial (not SE — see compatibility note)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eHorizontal Kit Length\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e1000 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003ePush-fit with lip seal throughout — no clamps required on flue joints\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eVertical Terminal Kit Included\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003eNo — order 3318080 (125mm black), 3318081 (125mm red) or 3319235 (100mm leisure) separately\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eCompatible Boiler Ranges\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003eE-Combi ONE 24\/30, Clas ONE 24\/30\/38, Clas System ONE, Genus ONE+ Wi-Fi, Alteas ONE, Alteas ONE+ NET, E-System ONE\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003e\u003cstrong\u003eNot Compatible With\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;border-bottom:1px solid #e0e0e0;\"\u003eNext Evo X gas water heaters — use SE system kit 3319648 instead\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f9f9f9;\"\u003e\n    \u003ctd style=\"padding:8px 12px;\"\u003e\u003cstrong\u003eHE Extension Accessories\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px 12px;\"\u003e3318077 (1m), 3318078 (500mm), 3318075 (90° elbow), 3318076 (45° bend pair x2), 3318465 (2m)\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin:28px 0;\"\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:6px 6px 0 0;font-weight:700;font-size:16px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\n  \u003cdetails style=\"border:1px solid #ddd;border-top:none;padding:0;\"\u003e\n    \u003csummary style=\"padding:14px 16px;cursor:pointer;font-weight:600;background:#f9f9f9;\"\u003eWhat is the practical benefit of the 3318074 bundle over buying 3318073 and 3318079 separately?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;border-top:1px solid #eee;\"\u003eConvenience and cost — the bundle prices both components together and ensures they arrive in the same delivery. For installers visiting a property where the final flue route hasn't been confirmed, having both the horizontal kit and the vertical starter avoids a wasted journey. The 3318074 is the product Ariston lists as the standard flue for this boiler range in their own literature.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #ddd;border-top:none;padding:0;\"\u003e\n    \u003csummary style=\"padding:14px 16px;cursor:pointer;font-weight:600;background:#f9f9f9;\"\u003eCan I use the 3318073 horizontal kit from this bundle for a vertical installation?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;border-top:1px solid #eee;\"\u003eNo — the 3318073 horizontal kit is a \u003cstrong\u003ehorizontal-only through-wall terminal\u003c\/strong\u003e. For a vertical installation, the \u003cstrong\u003e3318079 Vertical Starter\u003c\/strong\u003e (also in this bundle) is used with one of the vertical flue terminal kits (3318080, 3318081, or 3319235). The horizontal kit remains unused in a vertical-only installation — in that case, ordering the \u003cstrong\u003e3318079 alone\u003c\/strong\u003e is more economical.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #ddd;border-top:none;padding:0;\"\u003e\n    \u003csummary style=\"padding:14px 16px;cursor:pointer;font-weight:600;background:#f9f9f9;\"\u003eWhat is the maximum horizontal flue run for the E-Combi ONE 24 kW and 30 kW on Ø60\/100?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;border-top:1px solid #eee;\"\u003eBased on the Ariston flues data sheet: \u003cstrong\u003e8 metres for the 24 kW model and 7 metres for the 30 kW model\u003c\/strong\u003e. Each 90° elbow (3318075) and each pair of 45° bends (3318076) reduce this maximum — refer to the installation manual for the specific deductions. If the run exceeds these limits, upgrading to the \u003cstrong\u003eØ80\/125 coaxial system\u003c\/strong\u003e (up to 33 m at 24 kW, 24 m at 30 kW) is the appropriate solution.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #ddd;border-top:none;padding:0;\"\u003e\n    \u003csummary style=\"padding:14px 16px;cursor:pointer;font-weight:600;background:#f9f9f9;\"\u003eIs there a silver version to match the Alteas ONE+ NET?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;border-top:1px solid #eee;\"\u003eYes. For the Alteas ONE+ NET where visible flue pipework should match the boiler's silver aesthetic, the silver horizontal kit is \u003cstrong\u003ePart No. 3319163\u003c\/strong\u003e and the silver vertical starter is \u003cstrong\u003ePart No. 3319167\u003c\/strong\u003e. These are mechanically identical to their grey counterparts; the difference is colour only. A silver bundle equivalent to the 3318074 is not listed separately — order 3319163 and 3319167 individually.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #ddd;border-top:none;padding:0;\"\u003e\n    \u003csummary style=\"padding:14px 16px;cursor:pointer;font-weight:600;background:#f9f9f9;\"\u003eDoes this bundle work with the Next Evo X gas water heater?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;border-top:1px solid #eee;\"\u003eNo. The 3318074 is an \u003cstrong\u003eHE system bundle for Ariston condensing boilers only\u003c\/strong\u003e. The Next Evo X uses the \u003cstrong\u003eSE flue system\u003c\/strong\u003e — the correct horizontal kit for those appliances is the \u003cstrong\u003e3319648\u003c\/strong\u003e. Do not fit HE flue accessories to SE appliances or vice versa.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ariston","offers":[{"title":"Default Title","offer_id":65084605038941,"sku":"3318074","price":99.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/AristonHorizontalCoaxialKitplusVerticalStarter60-100mm3318074HEBoilerFlueBundle.jpg?v=1782481615","url":"https:\/\/qualityheating.co.uk\/products\/ariston-horizontal-coaxial-kit-vertical-starter-60-100mm-3318074-he-boiler-flue-bundle","provider":"AIZO Quality Heating","version":"1.0","type":"link"}