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Viessmann Vitodens 050 W 35kW boiler

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Plumbproud rating

91.23%

Viessmann Vitodens 050-W 35kW Combi Gas boiler

This Viessmann Vitodens 050-W 35kW Combi boiler has been rated at 91.23%. Our PlumbProud boiler quality rating system uses price installed, energy efficiency, likely running costs, the manufacturer's warranty and other factors to determine the rating we give.

We would expect this Viessmann Vitodens 050-W 35kW Combi boiler to cost £1,900 fully installed through PlumbProud, although it will cost more if the fit is complicated. We will provide you with a full quote before starting work, however.

Please enter your postcode in the quote boxes on this page, email us, or call us on 01604 343053 to get a free quote and guidance on whether the Viessmann Vitodens 050-W 35kW boiler is the right choice for your home.


Installed price around

£1,900

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Viessmann Vitodens 050-W 35kW Combi Gas boiler frequently asked questions

What kind of boiler is the Viessmann Vitodens 050-W 35kW - standard, combi or system?

If you are searching for a combi boiler for your house or flat, the Viessmann Vitodens 050-W 35kW is certainly one to consider.

Traditional boilers have one or two tanks - one holds hot water to keep it warm and the other water for later heating. Because UK residential property is among some of the smallest in the world, manufacturers introduced combi boilers and the heat pumps that go in them in the 1970s to reduce the amount of space boilers needed to take up.

The hot water needed for your radiators and taps is available on demand when you have a combi boiler. Combi boilers use technology located within the boiler to heat cold water, which it draws from the mains, and to distribute hot water where it's needed around your home.

A combi boiler, however, has the disadvantage of a maximum capacity for the amount of water it can heat. The result is that if someone uses the shower while another uses a hot water tap simultaneously, the amount of water reaching each point falls, causing water pressure to drop.

Is a Viessmann Vitodens 050-W 35kW combi boiler suitable for my house or apartment?

To determine that, we need to consider the size of the boiler. However, size doesn't refer to how big a boiler is - it means the size of its "output".

Your boiler’s output is a measurement of the power it has available to heat the volume of water required for your taps and radiators. The higher the output rate, the more water it can heat.

You need to be careful to select a boiler with the optimal level of output for your property though. That's because, if your boiler output is too low, your water and radiators will often not be as hot as you want them to be. If the output is too high, you’ll be paying more for gas than you need to.

The output of the Viessmann Vitodens 050-W 35kW combi is 33 kW, so which types of property would this Viessmann Vitodens 050-W 35kW Combi boiler be appropriate for?

An experienced Gas Safe boiler installer would recommend that, at this level of output, the most suitable type of property for this Viessmann Vitodens 050-W 35kW Combi boiler would be medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

Homeowners considering fitting a combi boiler to their home need to consider flow rates as well as output rates.

The flow rate is a measurement of the volume of water a combi can instantly heat and send to the taps and radiators around your home. The higher the likely demand for hot water in your home, the higher your combi's flow rate should be. This Viessmann Vitodens 050-W 35kW Combi boiler's flow rate is 14 L/m.

Unlike heat only or system boilers, combi boilers don't store hot water in a tank for later use - instead, they draw it directly from the mains. This means that the volume of water your boiler can actually process is constrained by the flow rate of water in the mains pipe.

So, if you choose a combi boiler with a 15l/m flow rate but the flow rate in your mains pipe is 12l/m, the combi boiler's working flow rate is also 12l/m.

Combi boilers are also not always the correct choice for homes with multiple bathrooms, a high number of radiators, or where more than one family member will want to use hot water at the same time.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


The size of the Viessmann Vitodens 050-W 35kW in millimetres

The Viessmann Vitodens 050-W 35kW is 707 mm tall, 400 mm wide, and 350 mm deep in size.

Is the Viessmann Vitodens 050-W 35kW a non-condensing or condensing boiler?

The Viessmann Vitodens 050-W 35kW is a condensing gas boiler - we’d strongly recommend that you choose the very latest condensing model for your home.

Condensing boilers run on either gas or oil and are manufactured specifically to improve energy efficiency. They do this by capturing and recycling the warmth present in flue exhaust gases and water vapour condensation into more usable heat the system can use, meaning they're far more efficient and cost less to run.

Is the Viessmann Vitodens 050-W 35kW combi an environmentally friendly boiler?

The effects of climate change on the environment are leading many homeowners to question the damage they might be doing by the way they heat their homes.

14% of the total amount of greenhouse gases produced by the UK comes from the central heating systems we use. In some of Britain's biggest cities, gas boilers create dangerous levels of nitrogen dioxide in the atmosphere.

Would choosing a Viessmann Vitodens 050-W 35kW combi help in the fight against climate change? What do the performance statistics suggest?

The energy efficiency rating of the Viessmann Vitodens 050-W 35kW is 93% with a SEDBUK band rating of "A".

Energy efficiency tests record how much energy is wasted on non-core functions during an operation.

By law, all boilers manufactured and supplied in the UK must have a minimum energy efficiency performance level of 92% (equivalent to a SEDBUK "A" grade). Up to April 2018, the minimum performance level was 88% (88% and 89% are equivalent to a SEDBUK "B" grade and 90%+ an "A" grade).

Energy-efficient boilers help the environment as they require less fuel and emit fewer harmful gases. In 2015, the EU introduced the Energy Related Products Directive (ERP), the aim of which was to ensure that all manufacturers, including boiler manufacturers, developed more efficient products and processes.

The legislation aims to conserve energy at all life cycle stages from initial production to actual use by the customer, through to the point of disposal.

The Viessmann Vitodens 050-W 35kW has been given an ERP rating of "A" for heat and "A" for water.

Does the Viessmann Vitodens 050-W 35kW combi boiler come with a warranty?

The Viessmann Vitodens 050-W 35kW boiler comes with a parts and labour warranty lasting 3 years.


Viessmann Vitodens 050-W 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating93%
Band ratingA
LPG Compatible?Yes
P/L Warranty3 Years
Output in kW33 kW
Height707 mm
Width400 mm
Depth350 mm
MountingWall
Flow rate14 L/m
ERP HeatA
ERP WaterA

The top 10 rated Gas Combi boilers

Using the Plumbproud scoring system, the current 10 ten Gas Combi boilers assessed using a number of important variables are as follows:

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%

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Viessmann Vitodens 050 W 35kW boiler

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Viessmann Vitodens 050-W 35kW Combi Gas boiler

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  2. Viessmann Vitodens 050-W 35kW
Plumbproud rating for this boiler
91.23%

Using the PlumbProud boiler quality scoring system, we have rated this model at 91.23%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

On straightforward installations, we would expect to charge you £1,900 for this Viessmann Vitodens 050-W 35kW Combi boiler fully installed.

Get a free quote on the Viessmann Vitodens 050-W 35kW boiler and advice on whether this is the right choice for your home by entering your postcode in the quote box on this page, clicking here to email us, or giving us a call at 01604 343053.


Installed price guideline
£1,900

Get your free quote

Viessmann Vitodens 050-W 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating93%
Band ratingA
LPG Compatible?Yes
P/L Warranty3 Years
Output in kW33 kW
Height707 mm
Width400 mm
Depth350 mm
MountingWall
Flow rate14 L/m
ERP HeatA
ERP WaterA

Viessmann Vitodens 050-W 35kW Combi Gas boiler frequently asked questions

What type of boiler is the Viessmann Vitodens 050-W 35kW - regular, system or combi?

The Viessmann Vitodens 050-W 35kW is a gas combi boiler.

In older British homes, traditional boilers required you to find room for one or more storage tanks. One tank would keep hot water warm and the other stored cold water for later heating. Manufacturers introduced combi boilers to the UK in the 1970s so that homeowners could get the warmth and hot water they needed without having to sacrifice too much valuable space – remember that residential property in this country is among the smallest in the Western world.

Combi boilers deliver hot water to your radiators and taps using water they draw directly from the mains supply. As mains water travels through a combi boiler, the technology within it heats the cold water instantly and on demand. The hot water is then distributed throughout your house.

Combi boilers have one drawback, however: they can only heat a certain amount of water within a given time. For example, if someone uses the shower and another person uses the hot water tap at the same time, water pressure drops because water reaches each point differently.

Is the Viessmann Vitodens 050-W 35kW combi boiler the right choice for my house or apartment?

You should make sure that the boiler you install in your property is the right "size". And size doesn't mean its physical dimensions, size means how much power it has - the "output".

Your boiler should be able to cope with peak hot water demand in your property and not just your average hot water usage. The output rate of a boiler is measured in kilowatts and tells you how much power a boiler can use to provide hot water to your taps, showers and radiators.

If the output of your boiler is too low, there will often be times when your water isn't as hot as you want. But if your boiler output is too high, it will be more costly to run (often unnecessarily).

The output of the Viessmann Vitodens 050-W 35kW combi boiler is 33 kW kilowatts. Which types of property would this be appropriate for?

An experienced PlumbProud boiler engineer would recommend that this Viessmann Vitodens 050-W 35kW Combi boiler be installed in medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

You need to consider the flow rate as well as the output rate when choosing a combi boiler.

Flow rates, measured in litres per minute, indicate how much water your boiler can heat and distribute around your home at any given time. If your family regularly use hot water around the house at the same time and you have a lot of radiators, you should choose a boiler with a high flow rate. This Viessmann Vitodens 050-W 35kW Combi boiler's flow rate is 14 L/m.

However, you also need to consider the flow rate of your local mains water supply. Combis can only draw water from the mains as fast as the pipes can deliver it. If you choose a boiler with a 14l/m flow rate and the mains pipes into your home have a flow rate of 12l/m, your boiler won't be able to operate at full capacity. In other words, try to make sure the local water pressure and your boiler flow rates are as close as possible.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


What are the dimensions of the Viessmann Vitodens 050-W 35kW boiler?

The Viessmann Vitodens 050-W 35kW has the following dimensions - 707 mm high, 400 mm wide, and 350 mm deep.

Is the Viessmann Vitodens 050-W 35kW a condensing or non-condensing boiler?

We recommend that, if possible, you choose a condensing boiler like the Viessmann Vitodens 050-W 35kW.

Condensing boilers are more energy-efficient. They achieve this efficiency by capturing the heat present in flue exhaust gases and water vapour condensation and recycling that heat to, for example, warm colder water coming back from your radiators.

By choosing the latest condensing boiler, you'll also notice a significant reduction in your gas bills, particularly if you're replacing a boiler more than 15 years old.

How does the Viessmann Vitodens 050-W 35kW combi rate environmentally?

Concern for the environment is causing more and more homeowners to think about how they heat their homes and its impact on climate change.

The heating of our homes accounts for 14% of the UK's greenhouse gas emissions. Especially in the big cities, gas boilers are responsible for dangerous levels of nitrogen dioxide emissions.

Would choosing a Viessmann Vitodens 050-W 35kW combi help in the fight against climate change? What do the performance statistics suggest?

By law, the minimum level of energy efficiency for boilers manufactured in the UK is 92%, equivalent to a good SEDBUK “A” rating. Prior to April 2018, the minimum was 88% - boilers whose energy efficiency levels were 88% or 89% were given a "B" rating on the SEDBUK scale and those at 90% or higher were given an "A".

The energy efficiency rating awarded to each boiler indicates the amount of energy that is wasted when in operation.

Following testing, the Viessmann Vitodens 050-W 35kW was given a 93% energy efficiency rating and a SEDBUK grading of "A".

The ERP (Energy Related Products Directive) applies to all products that consume energy at any time in their lifetime, from manufacture to disposal and all points in between.

This European legislation intends to encourage manufacturers to offer end users products that are better for the environment through the creation of fewer harmful gas emissions at all points of a product's life cycle.

The ERP rating for the Viessmann Vitodens 050-W 35kW is "A" for heat and "A" for water.

Am I covered if the Viessmann Vitodens 050-W 35kW combi boiler breaks down?

Parts and labour charges incurred during a repair on the Viessmann Viessmann Vitodens 050-W 35kW boiler are covered by a 3 year warranty.


The top 10 rated Gas Combi boilers

Using the Plumbproud scoring system, the current 10 ten Gas Combi boilers assessed using a number of important variables are as follows:

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%
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