Vitodens 111-W B1LF 25kW Storage Boiler

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£2,060.40 inc VAT

Vitodens 111-W 25kW Integrated 46l cylinder gas condensing boiler.

The new Vitodens 111-W B1LF PlusBus range offers unrivalled simplicity and convenience to everyone with:

Features and benefits:

  • Particularly attractive price/performance ratio
  • High DHW convenience through 46 litre integral stainless steel primary cylinder
  • Durable and efficient due to stainless steel Inox-Radial heat exchanger
  • MatriX-Plus burner with Lambda Pro combustion control for permanently high efficiency and low emissions
  • Simple and intuitive operation via LCD touch screen display or convenient and effective control via the ViCare app
  • Internet-capable thanks to integrated WiFi interface for more comfort, energy savings and safety with ViCare
  • Nominal heat output: 3.2 to 25kW
  • Standard efficiency: up to 98 % (Hs)
  • Modulation range up to 1:10
  • Energy-saving high-efficiency circulation pump
  • Energy efficiency class: A

New Boiler Control Platform

  • easy operation
  • detailed touch screen LCD display
  • clear, simple and comprehensible menu
  • discreet "black panel" visual design
  • heating system frost protection monitoring and function
  • convenient control of direct and mixed heating systems

Lambda Pro combustion control

  • fully automatic Lambda Pro combustion control system.
  • adapts automatically to all gas types
  • LPG ready, no conversion kit required
  • ensures continuously clean and efficient combustion.

WiFi Inside

  • simple guided commissioning via the Vitoguide App
  • homeowner control of heating and DHW programmes using the ViCare App
  • 3rd Party controls not required when using ViCare Thermostat
  • See Digital Services Tab for information.

Standard Delivery:

  • Condensing boiler and loading cylinder (46 litres) with thermal insulation
  • Modulating, fan-assisted premix burner with Lambda Pro
  • Control unit with integral WiFi interface
  • Expansion vessel (10 litres)
  • Fully plumbed and wired
  • Boiler flue connection
  • DHW expansion vessel 2L
  • Safety kit DHW
  • Wall mounting bracket
  • Valve fittings

Additionally you may require:

  • A suitable flue (see Flue tab)
  • A ViCare Thermostat for load compensation (see Accessories tab) meets 'Boiler-Plus' (not to be used with Weather Compensation)
  • An outdoor temperature sensor for weather compensation (see Accessories tab) meets 'Boiler-Plus' (not to be used with a Vicare Thermostat)

ViCare Thermostat (accessory)

  • load-compensated control meets 'Boiler-Plus'
  • battery powered
  • RF Connection

Viessmann ViCare Application:

Vitodens 111-W 25kW Integrated 46l cylinder Vitodens 111-W 25kW Integrated 46l cylinder


Specification Measures
DHW Flow Rate 20.1 l/m
Depth 500 mm
Width 600 mm
Height 950 mm
Weight 68 kg

Mobile applications and energy management systems.

Vitodens 111-W 25kW Integrated 46l cylinder Connectivity Inside.

Connectivity inside is the intergrated WiFi interface for operating and servicing systems using Viessmann Apps.

Vitodens 111-W 25kW Integrated 46l cylinder Communication technology.

ViCare app – mobile applications for system users:

  • Mobile operation of the heating system for heating and DHW.
  • Assistance functions and fault display with option for direct connection to a contractor for service requests.

Vitodens 111-W 25kW Integrated 46l cylinder Vitodens 111-W 25kW Integrated 46l cylinder

Vitodens 111-W 25kW Integrated 46l cylinder Tools for service, maintenance and commissioning.

ViGuide – mobile applications for trade partners:

  • Service and maintenance with ViGuide for optimising workflows in the Viessmann trade partner's business.
  • Ensures customer-friendly online service for the system user, provided they have enabled service via the ViCare app.
  • Straightforward and efficient commissioning of heat generators with integral communication module and battery storage systems, performed by heating contractors using Viguide.
  • In addition to the free version, ViGuide Plus and ViGuide Pro are also available as paid-for versions with additional analysis, remote maintenance and optimisation functions.

Vitodens 111-W 25kW Integrated 46l cylinder Vitodens 111-W 25kW Integrated 46l cylinder

Energy management systems.

Viessmann energy management:

  • Viessmann energy management is integrated into the latest generation of Viessmann heat pumps and energy storage units
  • It enables balanced operation of the components in the house that generate, consume or store electricity.
  • The focus is on optimising self-consumption of self-generated electricity from photovoltaic systems.
  • The energy management system provides extended information about electricity flows and also CO2 savings.
  • If desired, customers can add further optimisation levels in the ViCare app.

For more information on the system requirements, the functions and use, see Viessmann's Main Website Energy Management

Vitodens 111-W 25kW Integrated 46l cylinder Buying into Viessmann.

Viessmann use their best endeavours to ensure that their products are manufactured without any manufacturing or material defects.

In order for your boiler to qualify for a free of charge manufacturer’s guarantee period longer than the minimum 2 year period set out in the standard Terms and Conditions of Sale, your installation must be registered with Viessmann within 30 days of purchase/invoice.

You or your installer can register the installation, using the online or offline options available. The free of charge voluntary guarantee period varies by product, please see below for the period that applies at the time of purchase.

Viessmann Warranty Information and Viessmann Vitodens Guarantee (PDF)

For an extended guarantee, which is offered on some models as a purchase option, your installer must register your installation on the Viessmann Installer Portal for installations in Great Britain.

Vitodens 111-W 25kW Integrated 46l cylinderReturn of Goods.

We very much hope you will be happy with your products, however we do understand items sometimes need to be returned.
Condition is all important, an item should have been treated in the same way as if it was on sale in a shop, unopened and unused with seals intact.
Large palleted items (boilers, heat pumps, cylinders etc.) must be returned as delivered, strapped and wrapped to the pallet, unopened.


Our returns policy can be found here.

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