Benefit from these advantages:

  • High DHW convenience through cylinder loading system (CLS) and integrated stainless steel storage tank (46 litres)
  • Hot water capability of >18 l/min
  • Standard efficiency up to 97% (Hs) / 108% (Hi)
  • Built in filling loopImproved sturdier casing
  • All parts accessible from the front for ease of servicing
  • No requirement to be unvented cylinder assessed
  • Ideal for low water pressure area
  • Peak performance up to 200 l/10mins at temperature rise of 35 degree C


Wall mounted boiler with integral cylinder for the highest DHW convenience

The gas fired condensing boiler Vitodens 111-W is ideal for a flat or small family home, as well aslarger properties with high hot water demand. It can easily be sited in an alcove in the bathroom, kitchen or utility room.

The Vitodens 111-W DHW storage combi, offers the highest draw-off rate amongst wall mounted appliances, and a constant outlet temperature. For this purpose, a stainless steel primary store with 46 litres capacity, and an electronic outlet temperature controller are integrated.

The Cylinder Loading System (CLS) ensures a continuous supply of hot water on demand. A standard bath (140 litres), for instance, fills in around 8 minutes, with a quick heat recovery of less than 5 minutes. A shower fitting, a kitchen sink or a washbasin, for example, can also be supplied with water, at the desired temperature, simultaneously (subject to cold water pressure and to tap flow restrictions).

The controller with built in room temperature sensor can be connected to an outside temperature sensor to run in weather compensation mode and the user-friendly dials allow rapid adjustment of the heating and domestic hot water temperatures, with a digital display showing operating conditions and temperatures. Sensors adjust the MatriX cylinder burner automatically to ensure the preset temperature is adhered to, even when running a bath or a shower.

The hot water performance is equivalent to a separate installed 150 litre un-vented cylinder. The Vitodens 111-W delivers large amounts of hot water in next to no time.  


Product cross-section


Output (kW)
6,5 bis 35 kW
Standard seasonal efficiency [to SEDBUK 2009/2012]
97 % (Hs)
Energy efficiency class
Natural Gas & LPG
Application range
Residential buildings, new build and modernisation projects
Einfaches RGB
Residential buildings, new build and modernisation projects
DHW heating
46 litre storage, equivalent to a 150 litre unvented cylinder due to the Cylinder Loading System
Additional features
With modulating MatriX cylinder burner and Inox-Radial heat exchanger


A perfect match – System technology

"The whole is greater than the sum of its parts". Following this philosophy, Viessmann supplies more than high quality, reliable and effective heating components. In fact, all products are part of a matching total concept, where all components complement one another. After all, only perfect interaction between all system components can draw out the maximum potential of our innovative leading technology.

Viessmann system technology incorporates everything you need for a reliable and economical heating system: From the Vitotronic control unit with wireless remote control, powerful Vitocell DHW cylinders for the highest DHW convenience, right up to high grade solar thermal systems for cost effective central heating backup.