Introducing Viessmann

Voted UK’s Most Reliable Boiler

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Why Viessmann?

Comfort, climate and quality of life

Viessmann is a global brand renowned for products which are characterised by exceptional performance and high efficiency, helping homeowners to enjoy lower energy bills and reduce their environmental impact from the outset.

Which Best Buy 2018
1.8 to 35 kW
Efficiency: A
Vitodens 200-W Combi and System

Vitodens 200-W Combi and System

Wall mounted gas fired condensing boiler.

  • Up to 98 percent of the fuel used is converted into heat
  • Quiet operation thanks to low fan speed
  • Compact dimensions, only 450 mm wide
  • 1:20 modulation range (35 kW)
  • Easy to operate Vitotronic control unit with 5 inch colour touchscreen
  • Control via app and internet (with optional Vitoconnect 100 WiFi adaptor)
  • Available as combi (type BK2B) or system boiler (type B2HB)
  • Energy efficiency class: A
  • Fast and simple installation
1.8 to 35 kW
Efficiency: A
Efficiency (DHW): A
Vitodens 222-F DHW Storage

Vitodens 222-F DHW Storage

This storage combined floor standing condensing boiler is designed specifically for modernising heating systems and replacing older gas fired boilers and DHW cylinders.

  • Standard kitchen unit dimensions
  • Durable and efficient thanks to the Inox-Radial heat exchanger
  • Power saving high efficiency pump
  • Easy to operate Vitotronic control unit with 5 inch colour touchscreen
  • Control via app and internet (with optional Vitoconnect 100 WiFi adaptor)
  • Fast and simple installation
  • Energy efficiency class: A
  • Energy efficiency class, DHW heating: A
1.9 to 26 kW
Efficiency: A
Efficiency (DHW): A
Vitodens 242-F Solar DHW Storage

Vitodens 242-F Solar DHW Storage

This storage combined floor standing condensing boiler is designed specifically for direct connection to a solar thermal system. Incorporating three technologies in one; gas condensing boiler, DHW cylinder and solar control package, for where space is at a premium.

  • Easy to operate Vitotronic control unit with 5 inch colour touchscreen
  • Control via app and internet (with optional Vitoconnect 100 WiFi adaptor)
  • MatriX cylinder burner with Lambda Pro Control combustion controller for permanently high efficiency and clean combustion
  • With a floor area of just 0.4 m², this storage combi boiler takes up only a relatively small amount of space, so can fit into any recess
  • Combined PRV and condensate connection, for fast and simple installation
  • Energy efficiency class: A
  • Energy efficiency class, DHW heating: A
4.7 to 35 kW
Efficiency: A
Efficiency (DHW): A
Vitodens 100-W Combi and System

Vitodens 100-W Combi and System

With its compact dimensions, low weight and quiet operation, the Vitodens 100-W will integrate effortlessly into any living space.

  • SEDBUK 2009 seasonal efficiency 89.5%
  • Ideal as a replacement for older appliances due to low installed height and installation space for adaptation to existing systems
  • Low operating noise through extended modulation ratio: up to 1:6
  • User friendly control via backlit LCD touchscreen (option for control via room thermostats)
  • Straightforward access from the front, so no need to leave space at side for maintenance
  • Also approved for multiple connections to stacks in multi storey buildings
  • Combined PRV and condensate connection, for fast and simple installation
7.9 to 35 kW
Vitodens 100-W Open Vent

Vitodens 100-W Open Vent

Wall mounted gas fired condensing boiler, with modulating MatriX cylinder burner and Inox-Radial heat exchanger, for open and balanced flue operation.

  • For natural gas and LPG (conversion kit part no. 7828769)
  • Permissible boiler operating pressure 3 bar
  • Modulation ratio of 1:3
  • Room thermostatic and weather compensated control unit options
  • Min static head 1 m
  • No pump overrun required
4.7 to 35 kW
Vitodens 111-W DHW Storage

Vitodens 111-W DHW Storage

Wall mounted gas fired condensing boiler with integral cylinder for the highest DHW convenience.

  • Compact dimensions save space, particularly when installed in a living area
  • SEDBUK 2009 seasonal efficiency 89.5%
  • Ideal as a replacement for older appliances due to low installed height and installation space for adaptation to existing systems
  • Low operating noise through extended modulation ratio
  • Modulation ratio: up to 1:6
  • Modulating stainless steel cylinder burner
  • User friendly control via backlit LCD touchscreen (option for control via room thermostats)
  • 46 litre storage, equivalent to a 150 litre unvented cylinder due to CLS
5.9 to 35 kW
Efficiency: A
Vitodens 050-W Combi

Vitodens 050-W Combi

The Vitodens 050-W wall mounted gas condensing boiler offers excellent heating and DHW convenience with a particularly advantageous price/performance ratio.

  • Standard efficiency up to 97% (Hs)
  • Highly durable and efficient through Inox-Radial stainless steel heat exchanger
  • Modulating high efficiency stainless steel cylinder burner
  • Easy to operate control with manual power limitation and provision for connecting modulating thermostats
  • Combined PRV and condensate connection, for fast and simple installation
  • Digital user interface with LCD display
  • Suitable for weather compensation and/or open therm control operation