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Home Products Boiler Upgrades

Viessmann Vitodens 100W 26KW Combi Boiler

Innovative technology

Suitable for both newbuild and replacement applications on sealed systems, the Vitodens 100-W Combination and System boilers combine great performance with easy installation and maintenance.

These boilers benefit from the latest Viessmann technology. In addition to Viessmann’s unique stainless steel Inox-Radial heat exchanger and MatriX cylinder burner, the boilers benefit from improved components and a wide range of accessories and control options.

Weather compensation

With the increasing cost of fuel,boiler efficiency is becoming more and more important.The only way to improve the efficiency of a good quality condensing boiler is to add weather compensation controls.
The Vitodens100-W Combination and System* models are designed to work with optional weather compensation controls, to achieve additional fuel savings of up to12%-meaning huge savings every year, for a small initial outlay. (*System models must be installed as a 4-pipe system)

For the boiler to operate in weather compensation mode, it needs to be connected toa small sensor on a north facing outside wall.When the temperature changes outside, the boiler responds by increasing or decreasing the radiator temperature, to compensate. This proactive mechanism means that the boiler burns as much fuel as it needs –but no more– to achieve the desired room temperature.This keeps the return temperature as low as possible, meaning that the boiler can condense more, thus saving more fuel. People inside the building will experience a constant temperature and won’t even notice that the temperature outside has changed–but they will notice a significant reduction of their gas bills! Good news for planners – the weather compensation feature adds 2% to the boiler’s SEDBUK efficiency when using SAP(Standard Assessmant Procedure).

InoX-Radial heat exchanger

Stainless steel is,without doubt, the best material for primary heat exchangers in condensing boilers.One of the unique design features of all Vitodens boilers is the
Inox-Radial heat exchanger made from high grade stainless steel.
The spiral wound tube,with rectangular profile is designed to ensure a laminar flow
without a boundary layer for excellent heat transfer.
This self-cleaning component is so reliable that it is guaranteed for 5 years
against corrosion.

Take advatage of these benefits:

* Rated outputs: 26 kW, 30 kW and 35 kW  
* 5 year warranty on the Inox-Radial stainless steel heat exchanger
* SEDBUK  rated
* Modulating MatriX pre-mix cylinder burner
* Integral AquaBloc hydraulic unit for easy service & maintenance
* Pre-heat function on Combination models
* Extremely quiet operation















Specifications:
Output kW
26
Height (mm)
725
Width (mm)
400
Depth (mm)
340
DHW Flow Rate L/Min 14.3
Warranty (yrs) 5
 
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