{"product_id":"viessmann-vitodens-100-w-combi-boiler","title":"Viessmann Vitodens 100-W Combi Boiler 26kW–35kW","description":"\u003cdiv class=\"availability-notice\" style=\"border:2px solid #e68a2e;border-radius:6px;padding:12px 16px;margin:0 0 16px;background:#fff7ef;\"\u003e\u003cp\u003e\u003cstrong\u003eSupplied to order.\u003c\/strong\u003e Ordered in from Viessmann's UK distribution for you, usually 2–4 working days to dispatch.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eViessmann Vitodens 100-W Combi Boiler 26kW, 30kW and 35kW\u003c\/h2\u003e\u003cp\u003eViessmann's premium-value combi with a stainless Inox-Radial heat exchanger, MatriX-Plus burner and Lambda Pro combustion control, LCD touch display and ViCare app connectivity. A strong choice where you want a longer guarantee and higher hot water flow. Natural gas, LPG compatible.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInox-Radial stainless steel heat exchanger, MatriX-Plus burner with Lambda Pro\u003c\/li\u003e\n\u003cli\u003eUp to 98% efficiency (Hs), ErP class A\u003c\/li\u003e\n\u003cli\u003eHot water flow up to 17 l\/min (35kW)\u003c\/li\u003e\n\u003cli\u003eIntegral WiFi and ViCare app; touch display\u003c\/li\u003e\n\u003cli\u003e8 litre expansion vessel and integral filling device\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"required-notice\" style=\"border:2px solid #1f6feb;border-radius:6px;padding:12px 16px;margin:16px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eRequired with this boiler: a flue kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eViessmann boilers are supplied without a flue. The \u003cstrong\u003eFlue kit\u003c\/strong\u003e selector above Add to cart adds the \u003ca href=\"\/products\/viessmann-60-100-horizontal-flue-kit-7946886\"\u003eViessmann 7946886 60\/100mm horizontal flue kit\u003c\/a\u003e by default, as a separate line in your basket.\u003c\/p\u003e\n\u003cp\u003eOnly choose \u003cstrong\u003e\"I already have this\"\u003c\/strong\u003e if you already have a compatible Viessmann 60\/100 flue, or you need a different route: see the \u003ca href=\"\/products\/viessmann-60-100-vertical-flue-kit-black-7373230\"\u003evertical flue kit\u003c\/a\u003e, \u003ca href=\"\/products\/viessmann-60-100-concentric-flue-extension-1m-7373224\"\u003eextensions\u003c\/a\u003e and \u003ca href=\"\/products\/viessmann-60-100-concentric-flue-bends\"\u003ebends\u003c\/a\u003e. Only Viessmann flue components may be used with Vitodens boilers.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch3\u003eWhat is included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eViessmann Vitodens 100-W combi boiler in the selected output\u003c\/li\u003e\n\u003cli\u003eControl unit with integral WiFi, integral safety valves, high-efficiency pump and 3-way valve\u003c\/li\u003e\n\u003cli\u003e8 litre expansion vessel, integral filling device, wall mounting bracket, flue connection and valve fittings\u003c\/li\u003e\n\u003cli\u003eFlue not included: the horizontal flue kit is added with the selector above\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes and prices\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eHot water flow\u003c\/th\u003e\n\u003cth\u003eViessmann code\u003c\/th\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003cth\u003ePrice inc VAT\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e26kW\u003c\/td\u003e\n\u003ctd\u003e13.3 l\/min\u003c\/td\u003e\n\u003ctd\u003eZK06235 (7970761)\u003c\/td\u003e\n\u003ctd\u003ePLUMHEAT4518\u003c\/td\u003e\n\u003ctd\u003e£1,699.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30kW\u003c\/td\u003e\n\u003ctd\u003e15.6 l\/min\u003c\/td\u003e\n\u003ctd\u003eZK06236 (7970762)\u003c\/td\u003e\n\u003ctd\u003ePLUMHEAT4519\u003c\/td\u003e\n\u003ctd\u003e£1,773.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35kW\u003c\/td\u003e\n\u003ctd\u003e17 l\/min\u003c\/td\u003e\n\u003ctd\u003eZK06237 (7970763)\u003c\/td\u003e\n\u003ctd\u003ePLUMHEAT4520\u003c\/td\u003e\n\u003ctd\u003e£1,819.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eViessmann Direct now also lists the 100-W combi as type B1KG (3203679\/3203680\/3203677); we supply the current model available from Viessmann's UK distribution.\u003c\/p\u003e\u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\u003cp\u003eTick these under the flue selector to add them to your order:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/viessmann-vicare-wireless-modulating-thermostat-climate-sensor-zk05991\"\u003eViessmann ViCare wireless thermostat ZK05991\u003c\/a\u003e: app control and load compensation (Boiler Plus) on PlusBus Vitodens boilers.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/inta-trade-tec-22mm-magnetic-central-heating-filter-trmagfil22\"\u003eInta Trade Tec 22mm magnetic filter\u003c\/a\u003e: protects the heat exchanger; a system filter is expected under most manufacturer guarantees.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/viessmann-plume-management-kit-7946889\"\u003eViessmann plume management kit 7946889\u003c\/a\u003e: moves the plume away from windows, doors and boundaries.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/viessmann-60-100-concentric-flue-extension-1m-7373224\"\u003eViessmann 60\/100 flue extension 1m 7373224\u003c\/a\u003e: for walls thicker than the standard kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/viessmann-60-100-concentric-flue-bends\"\u003eViessmann 60\/100 flue bends\u003c\/a\u003e: 87° or 45° pair for offsets.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/viessmann-vitodens-valve-fittings-cover\"\u003eViessmann valve fittings cover ZK05674\u003c\/a\u003e: tidy finish under the boiler.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation and compliance\u003c\/h3\u003e\u003cdiv class=\"required-notice\" style=\"border:2px solid #1f6feb;border-radius:6px;padding:12px 16px;margin:16px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation and guarantee\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInstallation must be by a Gas Safe registered engineer (oil: OFTEC registered) and commissioned with the Benchmark checklist. Manufacturer guarantees require registration after installation and annual servicing; extended guarantee terms are the manufacturer's and may require their approved filter\/installer.\u003c\/p\u003e\n\u003cp\u003eViessmann UK currently offers up to 12 years' guarantee on the Vitodens 100-W when registered via ViessmannPlus (VPlus); see Viessmann's current terms.\u003c\/p\u003e\n\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eNatural gas as supplied; LPG operation must be set up to Viessmann's instructions by a Gas Safe engineer.\u003c\/li\u003e\n\u003cli\u003eBoiler Plus (England): combis need an approved efficiency measure such as load compensation (e.g. the ViCare thermostat) or weather compensation.\u003c\/li\u003e\n\u003cli\u003eCondensate must be routed to Building Regulations; external runs should be 32mm and insulated.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDelivery and collection\u003c\/h3\u003e\u003cp\u003eDelivered by pallet\/courier (£29.99 per order) or collect free from Leafbridge, Lincoln. Order-in boilers usually 2-4 working days.\u003c\/p\u003e\u003cp\u003eViessmann Vitodens 100-W\/111-W brochure (Nov 2025), Viessmann Vitodens 100-W combi installation and service instructions and Viessmann Vitodens flue system technical guide (8\/2024) are in the PDF downloads at the bottom of this page.\u003c\/p\u003e\u003cdiv class=\"shop-the-range\"\u003e\n\u003ch3\u003eShop the Viessmann Vitodens range\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/viessmann-vitodens-050-w-combi-boiler\"\u003eViessmann Vitodens 050-W Combi 25–35kW\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/viessmann-vitodens-050-w-system-boiler\"\u003eViessmann Vitodens 050-W System 19–25kW\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/viessmann-vitodens-100-w-system-boiler\"\u003eViessmann Vitodens 100-W System 11–32kW\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/viessmann-vitodens-100-w-heat-only-regular-boiler\"\u003eViessmann Vitodens 100-W Heat Only 11–32kW\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/viessmann-vitodens-025-w-combi-boiler\"\u003eViessmann Vitodens 025-W Combi 24–28kW\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/viessmann-vitodens-200-w-system-boiler\"\u003eViessmann Vitodens 200-W System 11–32kW\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFlues and accessories: \u003ca href=\"\/products\/viessmann-60-100-horizontal-flue-kit-7946886\"\u003ehorizontal flue kit\u003c\/a\u003e, \u003ca href=\"\/products\/viessmann-60-100-vertical-flue-kit-black-7373230\"\u003evertical flue kit\u003c\/a\u003e, \u003ca href=\"\/products\/viessmann-plume-management-kit-7946889\"\u003eplume kit\u003c\/a\u003e, \u003ca href=\"\/products\/viessmann-vitodens-valve-fittings-cover\"\u003evalve covers\u003c\/a\u003e. Browse all \u003ca href=\"\/collections\/boilers\"\u003eboilers\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Viessmann","offers":[{"title":"26kW","offer_id":60156207956352,"sku":"PLUMHEAT4518","price":1699.99,"currency_code":"GBP","in_stock":true},{"title":"30kW","offer_id":60156207989120,"sku":"PLUMHEAT4519","price":1773.99,"currency_code":"GBP","in_stock":true},{"title":"35kW","offer_id":60156208021888,"sku":"PLUMHEAT4520","price":1819.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/6344\/2467\/files\/viessmann-vitodens-100-w-boiler-front-1600.png?v=1792412810","url":"https:\/\/shop.the-glow-group.co.uk\/products\/viessmann-vitodens-100-w-combi-boiler","provider":"The Glow Group","version":"1.0","type":"link"}