Viessmann Vitodens 111 W

Viessmann Vitodens 111 W Matty May 2, 2023
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Viessmann boiler inside view
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VIESSMANN BOILERS

Viessmann offers a full range of high-quality products that represent German engineering at its finest. Extremely reliable boilers that offer great performance are one of the reasons why Viessmann regularly picks up the Which? Best Buy award.

Viessmann has a wide range of high energy-efficiency combi, system, and regular boilers available.

Viessmann Boilers

If you’re a big fan of precision German engineering, then there will certainly be a Viessmann boiler suited to your home. Viessmann boilers are renowned for performance and reliability, Which? Brand reviews have them just behind Worcester Bosch and Vaillant but they are classed as a premium brand boiler.

Viessmann manufactures a range of combi, system, and regular boilers. If you aren’t sure what boiler type you have, check out our blog, it’s important to know your boiler type before getting any boiler quotes.

Once you know what boiler type you’re looking for, you can use the WarmZilla boiler comparison function below. Just select up to 3 boilers you want to compare and you’ll be able to compare key stats side by side to see which Viessmann (or any other boiler brand) boiler is best for you.

You can also take the WarmZilla survey, by answering a few simple questions about your home we will be able to recommend suitable boilers for your heating and hot water requirements. You can get a quote on a new boiler in just a few minutes without adding any personal details.

WarmZilla stocks the Viessmann 050w and the Viessmann 100w boiler ranges because Viessmann offers excellent reliability on boilers with very high levels of energy efficiency.

WarmZilla currently offers combi gas condensing boilers from Viessmann in a range of kW options to suit small flats, apartments, and any size home.

Viessmann boilers sold by WarmZilla come with Gas Safe installation, system filter, system cleanse, inhibitor, wireless thermostat, up to 12 years guarantee, any flues or extension kits you may need; plus, if your condensate or gas pipes require upgrading – that’s included in your fixed price Viessmann boiler quote too!

You can also upgrade your wireless thermostat to a choice of smart thermostats and you can add radiators to your order – all your heating requirements with one easy online purchase.

Viessmann boiler prices vary depending on the model you choose and the kW output of the model you require. You can get a boiler quote now and find out exactly how much your new Viessmann boiler will cost, in a few minutes using the WarmZilla online survey.

Having heating and hot water in your home is crucial, which is why it is essential to ensure that you get your boiler annually serviced so that it can perform to its maximum efficiency.

Have your boiler serviced annually ensures greater reliability of your boiler, increases its lifespan, enhances safety for you and your home, and ensures that your boiler warranty is protected.

A typical boiler service consists of:

  • A full inspection of your boiler’s components by a Gas Safe Engineer
  • An inspection of the main injector, spark probe, and burner to the heat exchanger, electrical connections, and controls.
  • Your Gas Safe Engineer should also check all the seals, pipework, and combustion releases to make sure that your boiler is functioning at the correct pressure
  • Replacement of any damaged or worn parts
  • Clean the necessary components to ensure your boiler is performing as effectively as possible.

When should you arrange a boiler service?

Your boiler manufacturer will often mention that your boiler requires an annual service to ensure maximum efficiency and to protect your warranty. If you don’t get an annual service, you could end up paying for repairs, which can be quite costly depending on the boiler fault.

Other signs that you should look out for that indicate that you need a boiler service are:

  • If you see increased condensation in the room where your boiler is located
  • Black stains or marks around your boiler
  • The flame in your boiler changing from blue to yellow.

If you start to feel nausea, tiredness, dizziness, start vomiting or having headaches, stomach pains or have difficulty breathing, please call your Gas Engineer immediately and vacate the property, as this could be a sign of Carbon Monoxide poisoning.

The Vitodens 111-W range are storage combi boilers that combine the best of a combi and system boiler all within a single cost-effective unit.


Thanks to its high-efficiency rating of 94% and an ErP A-rating, the Vitodens 111-W 26kW is a reliable combi gas boiler that stores domestic hot water within an integrated 46-litre unvented cylinder.

Depending on your current boilers efficiency ratings, this storage combi boiler could potentially help with reducing not only your carbon footprint but also your energy bills.

This boiler model comes in two outputs, a 26kW, and a 35kW. With a central heating output of 26kW and a hot water output of 29.6kW, this particular model, the Vitodens 111-W 26kW is a great option for properties with around 10 to 15 radiators and up to 2 bathrooms.

The Vitodens 111-W also removes the need for a separate hot water cylinder or cold water tank, which would be essential with a system or regular boiler. Combi boilers are also beneficial for homes with limited space, as they are compact, meaning they can be installed neatly into your standard kitchen cupboard.  However, this storage combi boiler is slightly larger in size and may not be able to sit inside your cupboard but may be able to replace it. 

The Viessmann Vitodens 111 32kW Combi Boiler has a built-in 46-litre water cylinder. This has been designed for homes that require a higher hot water demand. It is durable and efficient with the incorporated stainless steel Inox-Radial heat exchanger. With built-in Wi-Fi, you can control the temperature from the palm of your hand via a smartphone or smart device. However, there is a very user-friendly LCD touchscreen display on the boiler for those that do not want to go smart. this unit is also 20% hydrogen ready, this can increase efficiency while reducing energy bills. 

The Vitodens 111-W Storage combi boilers combi the best of a combi and system boiler all within a single cost-effective unit.

Thanks to its high-efficiency rating of 94% and an ErP A-rating, the Vitodens 111-W 35kW is a reliable combi gas boiler that can help with reducing not only your carbon footprint but also your energy bills.

This boiler model comes in two outputs, a 26kW, and a 35kW. The Vitodens 111-W 35kW is the most powerful boiler of its range, with an output of 35kW for central heating and hot water output of 34kW. This storage combi boiler model is a great option for properties with around 20 radiators and 2 bathrooms. A benefit of a built-in hot water storage cylinder allows for it to meet higher demands for hot water in properties with 2+ bathrooms.

The Vitodens 111-W removes the need for a separate hot water cylinder or cold water tank, which would be essential with a system or regular boiler. Combi boilers are also beneficial for homes with limited space, as they are compact, meaning they can usually be installed neatly into your standard kitchen cupboard. However, this storage combi boiler is slightly larger in size and may not be able to sit inside your cupboard but may be able to replace it. 

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