Viessmann Vitodens 111-W Boiler Review: Is It Any Good?

Viessmann Vitodens 111-W Review

Viessmann Vitodens 111-W Review
Viessmann Vitodens 111-W Review

In our series of Viessman reviews, we have covered the smaller new boiler systems in great depth.

In today’s review is all about the Viessmann Vitodens 111-W, a family home combi boiler with the outstanding build quality and design.

The Vitodens 111-w is known to be; reliable, rapid and efficient.

The Vitodens 111-w combi boiler outperforms the more expensive Viessmann boilers in this range due to its functionality, compact design, and high performance.

boiler efficiency

The Vitodens 111-W is a high-performance storage combi boiler which is wall-mounted and is suitable for most family homes which require the use of more hot water on daily life.

It has a cylinder loading system or (CLS) with 46 litres of robust stainless steel storage capacity.

Vitodens 111-w storage boiler can fill a bath under 10 minutes alongside supplying water to wash up or brush your teeth at the same time. What a life saver!!

The gas Viessmann Vitodens 111-w is reviewed to have a maximum output flow rate of 35kW.

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Why We Love the Vitodens 111-W…..

Enjoy a quick filling bath with the Vitodens 111-W

It has the ability and capacity to fill a standard bathtub in under 10 minutes!

The boiler does all this with the ability to supply hot water to a sink and washbasin at the same time!

That’s practical brilliance from Viessmann.

What does that mean?

That means more relaxing bath time for busy mums, and less time waiting for the bath to fill! (which is always welcome in any household.)

Having a large capacity, quick heating, and reliability, the choice is simple.

Why not get your new boiler quote with installation on the fantastic Vitodens 111-W today!

For a boiler quote in 20 seconds – click here.

Features at a Glance:

  • High hot water capability of >18 l/min
  • User-friendly control via the backlit LCD touchscreen
  • Available in outputs from 4.7 to 35.0 kW
  • Cylinder loading system (CLS) and integrated stainless steel storage tank
  • Hot water performance equivalent to a separate installed 150L cylinder
  • Energy efficiency class: A
  • User-friendly dials for rapid adjustment of heating and hot water
  • Optional wireless remote control available


In more depth: Why we recommend the Viessmann Vitodens 111-W

Boiler Central above the Worcester-Bosch alternatives recommends the Vitodens 111-W.

This is due to its build quality and capacity, as mentioned above. But let’s now dig into the Viessmann technical information below.

Boiler Technical Information:

Being fitted and equipped with a stainless steel loading cylinder with a 46-litre capacity, the Vitodens 111-W has the ability to have on-demand hot water for the entire family.

The modulating ratio for the entire output range is up to 1:6. This means that this boiler can easily handle small apartment buildings and anything well insulated. 

With this, the user will benefit from appliances starting up less and therefore results in lower operating noise.

It also means that the Viessmann Vitodens 111-w service life and operating functions of the boiler will last longer and vastly extends the boiler life.

boilers cost

If you do have any issues, occur, for example, your Viessmann boiler heating and hot water decides not to work you will have been supplied with a Viessmann manual to see how to solve the problem before having to use your warranty.

Viessmann Vitodens 111-W Review

As we have mentioned in our other articles with Viessmann Boilers, they contain the brilliant Stainless Steel Heat Inox-Radial Heat Exchanger.

This helps for the highest efficiency of up to 98% while being exceptionally reliable with fully working operability during its long life of service. 

Viessmann is so confident about their Stainless Steel Heat Exchanger that they offer a brilliant 10-year warranty against leaks resulting from corrosion. 

viessmann warranty

A lengthy warranty really goes to show how much the manufacturers believe in their products as well as leaving you with great peace of mind.

Don’t forget Boiler Central offers a tremendous 15-year warranty on all Viessmann boilers!

For a boiler quote in 20 seconds – click here.

The Cylinder Loading System (CLS) 

What else?? The Viessmann Vitodens 111-W includes the Cylinder Loading System or CLS.

Alternatively, most unvented cylinders make use of a heating coil in order to heat the cylinder.

The CLS technology actually replaces the coil with the plate heat changer.

A DHW pump will circulate the hot water back to the top of the cylinder. 

Benefits of a Storage Combi Boiler

A storage boiler differs from a combi, regular/open vent boiler or system boiler as the storage boilers have a large hot water cylinder within the boiler unit. 

Storage Combi Boilers such as the Viessmann 111-W save space by getting rid of the need to have a separate hot water cylinder unit or tank.

It is all compact and in one unit, which makes it easier to manage and repair.

This is why our Viessmann Vitodens 111-W Review is so easy to get an in-depth picture of why we recommend it, as it really is a fantastic unit with the integrated cylinder.

kitchen cupboard fit combi boiler

There are many different boiler types and boiler sizes available to determine which storage combi is best for your property.

For example, Viessmann offers a range of smaller storage combi boilers suited for properties with two or more bathrooms.

The supply of the Vitodens 111-W is equivalent to 150L of water! Enough for most families small and large. 

For a boiler quote in 20 seconds – click here.

Boiler Technical Specifications:

Viessmann Vitodens 111-W Specs
Viessmann Vitodens 111-W Specs

A. Inox-Radial heat exchanger made from stainless steel – for high operational reliability, long service life and high heating output on a very small footprint

B. Loading cylinder made from stainless steel

C. Modulating MatriX cylinder burner

D. Variable speed combustion fan for quiet and economical operation E. Integral diaphragm expansion vessel 

F. Integral variable speed high efficiency circulation pump 

G. Digital control unit with touchscreen

Boiler Key Information:

 ■ Particularly space-efficient gas condensing boiler with integral stainless steel loading cylinder ■ Standard seasonal efficiency [to DIN] of up to 98 % (Hs ) [gross cv] 

■ Durable and efficient thanks to the Inox-Radial heat exchanger

 ■ Modulation range up to 1:6

 ■ Modulating MatriX cylinder burner with a long service life 

■ Simple and innovative operation via control unit with touchscreen 

■ Control unit for constant temperature and weather-compensated operation 

■ High DHW convenience due to loading system and integral stainless steel loading cylinder (46 l capacity) Recommendation for application 

■ New build- prefabricated houses and developer projects: Installation in utility rooms and attics The Vitodens 111-W is the ideal product, particularly in new build, as it can be installed before the screed is put down. 

boiler for new build homes

■ Modernisation: Replacement of gas system boilers, floor-standing atmospheric gas boilers and oil/gas boilers with DHW cylinders installed below Delivered condition 

■ Modulating MatriX cylinder burner 

■ Control unit for constant temperature and weather-compensated operation Weather-compensated operation requires both an outside temperature sensor and a clock thermostat or time switch (accessories) 

■ Integral DHW heating via plate heat exchanger and loading cylinder

■ Safety valves, expansion vessel (8 l) 

■ Circulation pump and 3-way diverter valve 

■ Fully plumbed and wired 

Boiler flue connection Preset for operation with natural gas. Conversion within gas groups E/LL is required. Conversion to LPG requires a conversion kit (standard delivery). Tested quality CE designation according to current EC Directives ÖVGW Quality Mark for gas and water equipment

Our Conclusion:

In conclusion, as far as boilers go, the Viessmann Vitodens 111-W is a fantastic choice for most family homes.

Here’s our ultimate review and verdict on the boiler:

Efficiency: A+

Reliability: A+

Affordability: A

Overall Score Out of 100 – 96.5 out of 100 based on all our metrics.

Contact BoilerCentral.com today for a free new boiler quote and a convenient installation time of your new boiler system, all booked online.

We offer flexible financing, and also affordable boiler cover starting at £13.99/mo!

We also offer an industry-leading 15-year warranty on all Viessmann Boilers. 

For a boiler quote in 20 seconds – click here.

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