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Viessmann Vitodens 100-W wall-hung gas condensing system boiler, front view
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Capacity

Viessmann Vitodens 100-W gas system boiler, 11kW to 32kW. 11kW available ex-stock at a clearance price.

  • Inox-Radial stainless heat exchanger, up to 98% (Hs)
  • Built-in pump, expansion vessel and 3-way valve
  • Integral WiFi, ViCare app
  • Required: flue kit, the 7946886 horizontal kit is selected by default

Download the Viessmann Vitodens 100-W/111-W brochure (Nov 2025) (PDF)

Flue kit Required
Recommended add-ons

Pickup available at F3 Castings Way, Leafbridge, Castings Way, Lincoln

Usually ready in 24 hours

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Viessmann Vitodens 100-W System Boiler 11kW–32kW

11kW – ex-stock clearance

F3 Castings Way, Leafbridge, Castings Way, Lincoln

Pickup available, usually ready in 24 hours

The Glow Group
Unit F3 Castings Way, Leafbridge
Lincoln LN6 9WG
United Kingdom

+441522300744

Supplied to order. Ordered in from Viessmann's UK distribution for you, usually 2–4 working days to dispatch. The 11kW is brand new ex-stock clearance from our Lincoln stock (1 unit, dispatch or collection within 24 hours).

Viessmann Vitodens 100-W System Boiler (B1HF) 11kW–32kW

The Vitodens 100-W as a system boiler for homes with a hot water cylinder, with the same stainless Inox-Radial heat exchanger, MatriX-Plus burner and Lambda Pro control as the combi. Natural gas, LPG compatible.

  • Inox-Radial stainless steel heat exchanger, MatriX-Plus burner with Lambda Pro
  • Up to 98% efficiency (Hs), ErP class A
  • Built-in pump, 8 litre expansion vessel and 3-way valve
  • Integral WiFi and ViCare app
  • 11kW is ex-stock clearance (1 unit); 19kW, 25kW and 32kW supplied to order

Required with this boiler: a flue kit

Viessmann boilers are supplied without a flue. The Flue kit selector above Add to cart adds the Viessmann 7946886 60/100mm horizontal flue kit by default, as a separate line in your basket.

Only choose "I already have this" if you already have a compatible Viessmann 60/100 flue, or you need a different route: see the vertical flue kit, extensions and bends. Only Viessmann flue components may be used with Vitodens boilers.

What is included

  • Viessmann Vitodens 100-W system boiler (B1HF) in the selected output
  • Control unit, integral safety valves, high-efficiency pump, 3-way valve and 8 litre expansion vessel
  • Wall mounting bracket, flue connection and valve fittings
  • Flue not included: the horizontal flue kit is added with the selector above
  • Cylinder and cylinder sensor not included

Sizes and prices

Capacity Availability Viessmann code Part number Price inc VAT
11kW Ex-stock clearance, 1 unit ZK06230 (7970955) PLUMHEAT4522 £1,199.99
19kW Supplied to order ZK06231 (7970889) PLUMHEAT4523 £1,579.99
25kW Supplied to order ZK06232 (7988418) PLUMHEAT4524 £1,666.99
32kW Supplied to order ZK06233 (7970765) PLUMHEAT4525 £1,762.99

The 11kW clearance unit is new and boxed, from our own stock; once it has sold, contact us for an order-in 11kW.

Recommended add-ons

Tick these under the flue selector to add them to your order:

Installation and compliance

Installation and guarantee

Installation 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.

Viessmann UK currently offers up to 12 years' guarantee on the Vitodens 100-W when registered via ViessmannPlus (VPlus); see Viessmann's current terms.

  • Natural gas as supplied; LPG operation must be set up to Viessmann's instructions by a Gas Safe engineer.
  • Condensate must be routed to Building Regulations; external runs should be 32mm and insulated.
  • Unvented cylinders must be installed by a G3-qualified installer.

Delivery and collection

Delivered by pallet/courier (£29.99 per order) or collect free from Leafbridge, Lincoln. Order-in boilers usually 2-4 working days.

Viessmann Vitodens 100-W/111-W brochure (Nov 2025) and Viessmann Vitodens flue system technical guide (8/2024) are in the PDF downloads at the bottom of this page.

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