Vitocrossal 100

Advanced gas condensing boiler

An award winning boiler with an output range of 80 - 318 kW, or 636 kW as a twin unit. Features advanced condensing technology, making it an economical boiler suitable for many different applications. Hydrogen Ready (20% Blend)

  • Suitable for
  • Powered by
  • Hydrogen
    H2 Ready
  • Up to
    318 kW
  • Easy service &
  • Opitonal remote
  • Award Winning
  • Made in
  • Suitable for natural gas 
  • Proven Vitotronic control unit with user prompts and plain text display
  • Pre-installed unit: quick and easy installation thanks to fully wired and pre-assembled components
  • Excellent accessibility to all components for ease of service and maintenance
  • Low power consumption as no boiler circuit pumps needed due to large water content
  • Low-wear operation and long service life, modulation range of up to 1:5 and long burner runtimes without cycling
  • NOx <24mg/kWh (2 Credit Points) in line with ‘BREEAM UK New Construction 2018 – Technical Manual’ assessment criteria
  • Standard seasonal efficiency [to DIN] up to 98% (Hs) [gross cv] / 109% (Hi) [net cv]
  • Lambda Pro Control combustion controller for automatic adaptation to changing gas qualities
  • Stainless steel heat exchanger for maximum efficiency
  • Can be controlled online via app with the optional Vitoconnect 100 WLAN module     
  • Modulating MatriX cylinder burner with a long service life thanks to stainless steel MatriX gauze – resistant to high temperature loads

Key Benefits

Advanced condensing technology suitable for many different applications

The Vitocrossal 100 (CI) is a gas condensing boiler for universal use with an output of 80 to 318 kW. With the excellent price/performance ratio, the energy centre is an especially economical solution for residential buildings and commercial enterprises alike.

It features the proven Inox-Crossal heat exchanger with robust MatriX cylinder burner. The modulation range of up to 1:5 ensures long burner runtimes and economical energy consumption.

Complete and compact

In its smallest available version, the Vitocrossal 100 measures just 450 millimetres, making it a good choice for replacing older systems in modernisation projects, where space is often particularly tight.

The heat generator can be ordered as a complete unit or as individual components that are delivered separately. The boiler is pre-wired and pre-installed at the factory, which significantly reduces the time and effort needed on site for installation.

Straightforward cascade solutions

In one casing from 240 to 636 kW.

Advanced condensing technology

The heat exchangers have been designed to combine minimal dimensions with a low weight. The stainless steel heat exchanger provides ideal conditions for utilising condensing technology whilst the smooth stainless steel heat exchanger allows the condensate created by the condensing process to simply run off downwards. The result is a permanent self-cleaning effect, which ensures permanently high efficiency, increases the service life and reduces maintenance effort.

The highly effective heat transfer and high condensation rate enable standard seasonal efficiency [to DIN] of up to 98% (Hs) [gross cv] / 109% (Hi) [net cv]. These high levels of standard seasonal efficiency are the result of the countercurrent principle related to hot gas and boiler water, along with the intensive turbulence of the hot gases as they pass through the heat exchanger.

Lambda Pro Control reduces costs

The integral Lambda Pro Control combustion controller automatically adjusts the burner to the type of natural gas (E, L, LL), ensuring consistently high and efficient combustion quality with low emissions. 

The Vitocrossal 100 is suitable for open flue or room sealed operation.

Proven Vitotronic control unit

The integral Vitotronic control unit enables rapid commissioning and easy operation. With the optional Vitoconnect 100 WLAN module, the boiler can be conveniently controlled online via app. 

The Vitotronic 300-K (MW1B) cascade control unit covers up to eight boilers.

The best of both worlds

Unlike other floor-standing boilers, the Vitocrossal 100 delivers the best of both worlds. As standard it delivers the benefits of a high water content boiler with no minimum flow rate requirement, no boiler pump requirement and subsequent savings on electrical running costs. Yet it is pre-wired and pre-assembled, like wall-hung boilers

Product Data and Downloads


Datasheet for the Vitocrossal 100

Technical Guide

Vitocrossal Technical Guide

Vitocrossal Single Installation Instructions

Vitocrossal Twin Installation Instructions

Service instructions

Service instructions for the Vitocrossal 100

Vitocrossal 100 Operating Instructions (Constant Temp)

Operating instructions for the Vitocrossal 100 with Vitotronic 100

Vitocrossal 100 Operating Instructions (Weather Comp)

Operating instructions for the Vitocrossal 100 with Vitotronic 200

Vitocrossal 100 Operating Instructions (Cascade Control)

Operating instructions for the Vitocrossal 100 with Vitotronic 300-K


Vitocrossal 100 brochure

Vitocrossal Twin Installation Instructions


Vitocrossal 100

Vitocrossal 100

Output (kW)

Vitocrossal 100

80 to 318 kW

Standard seasonal efficiency [to DIN]

Vitocrossal 100

98 % (Hs) [gross cv] / 109 % (Hi) [net cv]

Low NOx levels

Vitocrossal 100

NOx <24mg/kWh (2 Credit Points) in line with ‘BREEAM UK New Construction 2018 – Technical Manual’ assessment criteria


Vitocrossal 100

Natural gas E, L and LL

Application range

Vitocrossal 100

Residential buildings, commercial enterprises, local authority premises, new builds and modernisation projects


Vitocrossal 100

Easy to use Vitotronic control unit

DHW heating

Vitocrossal 100

Additional DHW cylinder(s) required for high level of DHW convenience

Additional features

Vitocrossal 100

MatriX cylinder burner

Like what you see? Request a commercial consultation

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