GET A COMPETITIVE QUOTE

Please enter your postcode below to get a free, no obligation, personalised quotation from PlumbProud

Vaillant EcoTEC Plus 838 boiler

  1. Home
  2. Vaillant ecoTEC Plus 838
Plumbproud rating

92.16%

Vaillant ecoTEC Plus 838 Combi Gas boiler

On the PlumbProud boiler quality benchmark scoring system, we have rated this Vaillant ecoTEC Plus 838 Combi boiler at 92.16%. Ratings are determined by considering a number of important factors including the energy efficiency, price installed, warranty length, and running costs of the boiler.

We would expect that, unless there are complications during fitting, this Vaillant ecoTEC Plus 838 Combi boiler would cost £2,500 supplied and professionally installed through PlumbProud.

Enter your postcode in the box provided and receive a free quote for the Vaillant EcoTEC Plus 838 boiler for your home. We are also happy to answer any questions you might have about any of our boilers. You can do this by emailing the team or calling us today on 01604 343053.


Installed price around

£2,500

GET A COMPETITIVE BOILER QUOTE

Please enter your postcode below to get a personalised quotation for the perfect boiler for your home

Vaillant ecoTEC Plus 838 Combi Gas boiler frequently asked questions

Vaillant EcoTEC Plus 838 - combi, system or regular boiler?

You may wish to consider installing the Vaillant EcoTEC Plus 838 if you are looking for a combi boiler for your house or flat.

Combi boilers are excellent for providing hot water and heat for your radiators just when you need it. When you have a combi boiler installed in your home, you just turn on the tap and the hot water for your bath, shower, washing dishes and other activities is there when you need it. It also provides the heat you need to keep your radiators warm.

A combi boiler heats the cold water passing through it, which it draws from the mains. This newly heated water can then be distributed to whichever hot tap or radiator needs it.

In the past, boilers needed at least one storage tank to hold water that was either already heated or would be heated later. Sometimes, you'd have to wait for hot water because there was none left. In addition, storage tanks took up a lot of space and most UK homes are pretty small.

The main disadvantage to combi boilers is that they can only heat a certain amount of water at any one time, meaning the pressure, volume and temperature of water will decrease if more than one tap is on at the same time or if both the shower and washing machine are on together.

Is a Vaillant EcoTEC Plus 838 combi the right boiler for my house or flat?

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

The output rate of a boiler tells you how much power it has available to it for heating the water that comes out of your taps and warms your radiators. A higher output rate means that your boiler has more power at its disposal.

You need to make sure you select a boiler with the right output rate. That's because, if your output rate is too high, then your boiler will have more power than it needs but it will cost too much to run. If the output rate is too low, your water may often not be hot enough.

The Vaillant EcoTEC Plus 838 combi's output is 38.7 kW, so which types of property would this Vaillant ecoTEC Plus 838 Combi boiler be appropriate for?

An experienced Gas Safe boiler installer would be likely to recommend that this Vaillant ecoTEC Plus 838 Combi boiler is capable of providing heating and hot water to 15 or more radiators and two or more bathrooms and would therefore be most suitable for larger properties including detached homes.

Please remember too that all combi boilers draw water from the mains - they have no storage tanks. Combis heat the water from the mains on demand and then send it to wherever it's needed in the house, like a radiator, a bathroom or a kitchen.

The speed at which it can do this is called the "flow rate", which is measured in litres per minute. If you have a lot of radiators and bathrooms in your home and multiple people are regularly trying to use the hot water at one time, such as in the morning or evening, you'll need a combi with a high flow rate. This Vaillant ecoTEC Plus 838 Combi boiler's flow rate is 16 L/m.

However, it's not that simple. Combis can only draw water from the mains at the speed it's delivered. If the flow rate of the local water supply is 11l/m, you shouldn't purchase a boiler with a flow rate of 17l/m because it will never be able to use that extra capacity.

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.


Making space for the Vaillant EcoTEC Plus 838

The Vaillant EcoTEC Plus 838 is 720 mm tall, 440 mm wide, and 406 mm deep in size.

Is the Vaillant EcoTEC Plus 838 a non-condensing or condensing boiler?

This Vaillant EcoTEC Plus 838 is a condensing gas boiler - we always recommend that clients choose the latest condensing models to benefit from the technology, which continues to improve year after year.

Condensing boilers capture the heat still present in flue exhaust gases and water vapour condensation, processing them through a secondary heat exchanger to, among other tasks, heat colder water returning from your radiators.

By selecting a modern condensing boiler, you'll save money on your gas bills as well as benefitting the wider environment.

Does the Vaillant EcoTEC Plus 838 combi protect the environment?

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.

Central heating creates 14% of the UK’s greenhouse gases. And in Britain's larger cities, gas boilers are responsible for dangerous levels of nitrogen dioxide emissions.

Would choosing a Vaillant EcoTEC Plus 838 combi help in the fight against climate change? What do the performance statistics suggest?

All boilers manufactured and installed in the UK are required by law to have an energy efficiency rating of at least 92%, equivalent to a good “A” rating on the SEDBUK scale. Before this, the minimum was 88% (ratings of 88% and 89% are equivalent to a high “B” SEDBUK rating and anything 90% or higher is an "A" rating).

A boiler's energy efficiency rating is designed to let you know how much energy is used and wasted during normal functioning.

The Vaillant EcoTEC Plus 838 was given an efficiency rating of 94% and a band rating of "A".

The ERP (Energy Related Products Directive) is European legislation that aims to reduce the use of energy at all points during a product's life, from the point of manufacture to when it's in active use right through to final disposal.

The regulation aims is to encourage manufacturers to create products that are more environmentally friendly and which reduce the harmful gas emissions associated with those products.

The ERP gradings for the Vaillant EcoTEC Plus 838 are "A" for heat and "A" for hot water.

How many years' warranty does the Vaillant EcoTEC Plus 838 combi come with?

The parts and labour warranty offered with this Vaillant ecoTEC Plus 838 Combi boiler covers you for 5 years.


Vaillant ecoTEC Plus 838 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?No
P/L Warranty5 Years
Output in kW38.7 kW
Height720 mm
Width440 mm
Depth406 mm
MountingWall
Flow rate16 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%

Combi boilers

Choose from the UK’s biggest range of combis

Heat only boilers

The ideal boiler perfect for the largest homes

System boilers

Ideal for 3+ bedroom, 2+ bathroom homes

Boiler quote

Free, no obligation quote from our engineer

Vaillant EcoTEC Plus 838 boiler

We will not be beaten on price -
ask us about our PRICE GUARANTEE!

Vaillant ecoTEC Plus 838 Combi Gas boiler

  1. Home
  2. Vaillant ecoTEC Plus 838
Plumbproud rating for this boiler
92.16%

Using factors such as price installed, manufacturer guarantees, energy efficiency and the likely cost of running, among others, this model has been rated as scoring 92.16% on the PlumbProud boiler benchmarking system.

We estimate that, on a standard, non-complicated installation, the supply and fitting charge for this Vaillant ecoTEC Plus 838 Combi boiler will be around £2,500.

To get a free quote for the installation of the Vaillant EcoTEC Plus 838 boiler in your home, simply enter your postcode in the box provided on this page. You can also find out whether this is the right boiler for your home by clicking to email our installation team or by calling us on 01604 343053.


Installed price guideline
£2,500

Get your free quote

Vaillant ecoTEC Plus 838 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?No
P/L Warranty5 Years
Output in kW38.7 kW
Height720 mm
Width440 mm
Depth406 mm
MountingWall
Flow rate16 L/m
ERP HeatA
ERP WaterA

Vaillant ecoTEC Plus 838 Combi Gas boiler frequently asked questions

Vaillant EcoTEC Plus 838 - combi, system or regular boiler?

When looking for a combi boiler for your house or flat, the Vaillant EcoTEC Plus 838 might be a suitable option for you.

Combination or combi boilers are highly efficient and save a lot of space in your home. Combi boilers heat water directly from the mains when you turn on a tap and, as a result, you don’t need a hot water storage cylinder or a cold water tank in the roof space.

These boilers are, therefore, suitable for smaller homes and especially those without a loft. They are also cost-effective as the water is heated instantly and distributed on demand rather than being stored. Combi boilers are the most popular type of boilers in the UK and replacing an older boiler with a new combi boiler will reduce your gas bills significantly.

However, there are downsides to this type of boiler. If you take a shower while someone else is using a tap, less water will reach each point of usage at lower rates of pressure and temperatures as combi boilers can only heat a certain volume of water at any given time.

Would the Vaillant EcoTEC Plus 838 combi be a suitable choice of boiler for my house or flat?

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".

Output measures in kilowatts how much power a boiler can use when heating water for your radiators or taps. The higher the output rate, the more water it can heat.

If the output rate is too low, your hot water might often be only lukewarm, and if it is too high, you will be paying more for your gas than you need to.

The Vaillant EcoTEC Plus 838 combi boiler has an output of 38.7 kW, so which types of property would it be most appropriate for?

Most heating engineers would recommend that this Vaillant ecoTEC Plus 838 Combi boiler would be suitable for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

If you are considering installing a combi boiler in your home, you need to consider the flow rate as well as the output rate.

The flow rate is the volume of water (measured in litres per minute) that your boiler can instantly heat up and send around the home. The more demand in your home for water at the same time (for example, two people taking showers in different bathrooms), the higher the flow rate you'll need.

However, the actual flow rate your boiler can deliver is also determined by your mains water pressure. If you choose a boiler with a flow rate of 16l/m but the mains water pressure is 12l/m, your boiler will only perform to 12l/m. This Vaillant ecoTEC Plus 838 Combi boiler's flow rate is 16 L/m.

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.


Vaillant EcoTEC Plus 838 size

The Vaillant EcoTEC Plus 838 is 720 mm tall, 440 mm wide, and 406 mm deep in size.

Vaillant EcoTEC Plus 838 – non-condensing or condensing?

We recommend that, if possible, you choose a condensing boiler like the Vaillant EcoTEC Plus 838.

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 environmentally friendly is the Vaillant EcoTEC Plus 838 combi?

Many homeowners are becoming increasingly concerned about how they heat their homes and the impact it has on climate change and other important environmental issues.

Central heating creates 14% of the UK’s greenhouse gases. And in Britain's larger cities, gas boilers are responsible for dangerous levels of nitrogen dioxide emissions.

Will you be helping the environment if you decide to install a Vaillant EcoTEC Plus 838 combi in your home? Let’s look at the figures.

All boilers manufactured and supplied in the UK must achieve an energy efficiency rating of at least 92% (an "A" SEDBUK grade). This is higher than the previous 88%, which was a legal requirement prior to April 2018.

The energy efficiency rating is used to work out how much energy a boiler both uses and wastes when it's switched on and working correctly - its standard functioning and operation.

The Vaillant EcoTEC Plus 838 is rated as 94% energy efficient, equivalent to a "A" SEDBUK rating.

The Energy Related Products Directive grades products according to the energy they consume and the harmful gas emissions they create, from manufacturing right through to final disposal, including how they're used by customers between these two points.

The Vaillant EcoTEC Plus 838 is rated "A" for heat and "A" for water.

How long am I covered by the warranty for if the Vaillant EcoTEC Plus 838 breaks down?

The Vaillant EcoTEC Plus 838 boiler is provided with a parts and labour warranty lasting 5 years.


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%
Menu