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Viessmann Vitodens 111-W Review | Storage Combi Boiler

This Viessmann Vitodens 111-W Review gives you all the information you need about one of the best storage combi boilers on the market today. As far as storage combi boilers go, nothing comes close to this.

Many manufacturers would suggest their own models are the best on the market. But the Viessmann Vitodens 111-W easily comes out as the winner.

Before we look at why it’s one of the best storage combi boilers on the market, let’s learn a little about the brand behind the boiler, Viessmann.

About Viessmann

Viessmann - the company behind the Viessmann Vitodens 111-W

The German company Viessmann has been one of the industry’s leading manufacturers since 1917. They’ve gathered three decades of experiences operating in the UK and as a £2.03 billion company, have also enjoyed plenty of international presence. For many years they’ve manufactured boilers for commercial venues but have also been heavily involved in the domestic market. Across the globe they have:

  1. Over 12,000 employees as of 2017
  2. 23 production companies in 12 countries
  3. Distribution companies and representative offices in 74 countries
  4. 120 sales offices around the world

For this Viessmann Vitodens 111-W Review, you’ll want to know which brand is best across Europe. For this honour, Viessmann takes the crown without a doubt. The Viessmann Vitodens 111-W in particular is an excellent example of a wall-mounted boiler, which allows for a greater flexibility for positioning. Worcester Bosch are strong competition, but are still no match for the German giant because their storage combi boilers are only floor standing.

To prove that they’re top of the market, Viessmann has been the recipient of many prestigious awards including:

Viessmann won the reddot award Viessmann won the german design award 2015

Viessmann’s UK headquarters are situated in Telford in the Midlands. They have parts available at their HQ and across all 156 plumbase branches within the UK. They’re a very reliable manufacturer with over 40 engineers and counting across all UK postcodes. Their experience in the heating industry has made them a leader in their own market. They’ve capitalised on this position and can offer the best products at competitive prices.


Viessmann Vitodens 111-W Storage Combi Review

111-w which best buy 2018

Viessmann Vitodens 111-W review – Introduction

In this Viessmann Vitodens 111-W review, we look at one of the best storage combi boilers available. Boasting a cylinder loading system and 46 litre integrated stainless steel storage tank, it has a delivery rate of 18 L/min.

What is a Storage Combi Boiler?

Unlike a combi, system or regular/open vent boiler, storage combi boilers have a hot water cylinder housed within the unit itself.internal components of the 111-w storage combi

The benefit here is that you save space by eliminating the necessity for a separate hot water cylinder or cold water storage tank. Everything is kept compact and easy to manage over the boiler’s lifespan. Which makes this Viessmann Vitodens 111-W Review even easier to recommend.

There are many different boiler types and boiler sizes available to determine which storage combi is best for your property. For example, Viessmann offer a range of smaller storage combi boilers suited for properties with two or more bathrooms which you can find by clicking here.

If the Viessmann Vitodens’ water supply equivalence of 150L isn’t enough for your boiler supply, an alternative option to the 111-W is the Vitodens 222-F DHW Storage boiler. With a hot water supply equivalent to 200L, there is always something from Viessmann suitable for your property. As well as this, if you’re interested in integrating solar panel technology into your heating system, the Vitodens 242-F Solar DHW Storage is another excellent option.

This is ideal if there are any issues with space for open vent or system boilers.

Now let’s break it down even more…

Viessmann Vitodens 111-W Review – Tech Specs

  • Modulation ratio of up to 1:6
  • Wall-mounted – allowing greater flexibility for boiler position
  • User-friendly control via backlit LCD touchscreen
  • Output availability ranges between 4.7 to 35 kw
  • DHW (Domestic supply is equivalent to 150L unvented cylinder – due to the advanced CLS (Cylinder Loading System)
  • Integration with smart thermostats such as Nest and Tado
  • Sturdy casing
  • Dimensions: 600 x 900 x 480mm
  • 64kg Weight
  • Energy Efficiency Class A
  • Can be positioned in a number of rooms such as utility room or bathroom
  • 46 litre capacity stainless steel integrated storage tank

What does the installation cover?

For this Viessmann Vitodens 111-W Review, it’s useful to know what you’d be receiving as part of the installation. We would remove your previous boiler and take out the appropriate cold water storage tanks, expansion tanks or hot water cylinders if needed. These would then be taken off-site, after which we would move onto converting the system for a storage combi boiler.

If required, the pipework can be upgraded. The installation would also include:

  • A brand new, modern storage combi boiler
  • Vertical/Horizontal flue
  • Spirotrap MB3 Magnetic Filter – Trapped dirt and sludge can be discharged while the heating system is operating, saving massive amounts of time and a huge advantage over other filters
  • Spirovent RV2 Deaerator with swivel connection – Effectively removes circulation and micro bubbles, putting an end to gurgling and other irritating noises
  • Programmable Thermostat compliant with Boiler Plus Legislation OR an Internet Enabled Learning Thermostat
  • Chemical Flush – also includes chemical inhibitor for future-proofing
  • Appropriate pipework to complete installation
  • Warranties available for up to 10 years
  • Building Regulation Notification with Certification including Landlord Certificates (If applicable)
  • Detailed handover to customer on boiler details and how to operate thermostat
  • Handover and induction on boiler and controls/advice on best usage

Viessmann Vitodens 111-W review – Cost

viessmann vitodens 111-w can save you money!Boiler (supply only): For a Viessmann Vitodens 111-W 35kw, the best price as of June 2019 we’ve found online is £1,579.00

Boiler including installation & extras: Depending on details of your property or if there are specific building regulations to consider, a typical price for this installation would be around £3,500. Besides the boiler, installation and labour costs this would also include extras like a magnetic filter, limescale filter, programmable room thermostat as well as any upgraded pipework needed.

If you need more information about the costs of a Viessmann Vitodens 111-W 35kw installation, you can also get a free online quote from us by entering your postcode in the box below and clicking the green button.

Viessmann Vitodens 111-W review – Controls

111-w uses the Nest Learning Thermostat

A boiler is only as good as the interface that controls it. After all, it’s still a person that can ultimately decide the temperature of the house.

As part of this Viessmann Vitodens 111-W Review, we recommend Nest – one of the leading brands in modern smart thermostat technology. This type of thermostat means you can control it wirelessly around the house, as well as through an app on your smartphone if you’re away from the property. Because of technology’s place in the modern world, living in a smart home property can make a massive difference to your annual energy bills – even in the first year.

By using your phone’s location with Nest, you can control your heating remotely to anticipate when you’re leaving the property. In doing so, you avoid wasting large amounts of energy as nothing is left on unnecessarily. After an observational period of around a week, it learns to programme itself in order to match your daily routine, ensuring that no energy is wasted when you’re away.

Although this can work automatically, Nest ultimately gives the user full control over their central heating system. An improved and easy-to-use interface makes it very accessible, especially for those unfamiliar with the technology.

Compare to the wildly popular Amazon Echo smart speaker, responding to vocal commands and specific requests to can make your life a lot easier.

Besides Nest, another brand that offers excellent control over your central heating is Tado.111-w uses the Tado thermostat

Inox-Radial Stainless Steel Heat Exchanger

It’s quite easy to give this Viessmann Vitodens 111-W review a high score for many reasons. One such reason is its patented stainless steel heat exchanger built for lasting efficiency and high-quality performance. Stainless steel offers a tougher and more corrosion-resistant option over aluminium, which is what many manufacturers opt for as a cheaper alternative.

Even though Aluminium gets off to a good start with high thermal conductivity, the efficiency will degrade dramatically over time.

Use the following graph as an indication of this:viessmann vitodens 111-w review heat exchanger comparisonInox stainless steel has a maximum of 1.2% Carbon and a minimum of 10.5% chromium content. What this does is create a furnace-like environment inside a small space. High Chromium content can also increase the heat exchanger’s resistance to staining and corrosion, which in the long-term, significantly extends your boiler’s lifespan.

Verdict/Final Thoughts

Cost Effectiveness: 9/10

Energy Efficiency:9/10

Overall Rating: 9/10


As storage combi boilers go,  reading this Viessmann Vitodens 111-W review you should be able to tell that we think it is an excellent choice.

It really does deserve the crown as the best storage combi boiler on the market today. This is because of many reasons, like the reliable stainless steel heat exchanger.

As well as this, due to the fact that it is an fantastic example of an energy-efficient storage combi boiler, it can take off more than you might expect from your annual energy bills.

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