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Vaillant EcoTEC Plus 637 boiler

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Plumbproud rating

92.05%

Vaillant ecoTEC Plus 637 System Gas boiler

Our PlumbProud quality scoring system considers important factors like energy efficiency, the length of a manufacturer’s guarantee, likely running costs, and installed price to determine a boiler's value for money. This model has received 92.05% from our engineers.

On most non-complicated installations, we would expect this Vaillant ecoTEC Plus 637 System boiler to cost £2,500 supplied and fully professionally installed.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Vaillant EcoTEC Plus 637 boiler is right for your home. Our team can also provide you with a free quotation for this Vaillant ecoTEC Plus 637 System boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price around

£2,500

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Vaillant ecoTEC Plus 637 System Gas boiler frequently asked questions

Is the Vaillant EcoTEC Plus 637 boiler a combi, system or regular boiler?

The Vaillant EcoTEC Plus 637 may be worth considering if you are looking for a system boiler for your house or flat.

A system boiler needs a hot water cylinder to work but it does not require a cold water tank, unlike with heat only boilers. This makes system boilers suitable for properties that lack loft space (or have no loft at all) or where a loft conversion is planned. The cylinder stores hot water for use throughout the day and water can be distributed to more than one tap or shower simultaneously without a loss of pressure or temperature (something combi boilers really struggle with).

System boilers are generally found in larger homes or properties housing large families. System boilers are easier to install than heat only boilers because their major components, including the circulation pump, are built-in and, of course, no cold water tank is needed.

With a system boiler, you use the control panel to set times for when you want the heating and hot water to be available but, unlike combi boilers, they cannot deliver hot water instantly. If you don't set your timer, you will have to wait for the water to heat up.

Is the Vaillant EcoTEC Plus 637 system boiler a suitable choice for my property?

Selecting the right boiler for your property means selecting a boiler that is the right "size". And, by size, we don't mean how big it is, we mean how powerful it is - its "output".

The output rate tells you how much energy your boiler has to use to provide you and your family with hot water and central heating. A higher output rate means that it can heat greater volumes of water.

Please be aware, though - if you choose a boiler whose output is too low, the water in your radiators and coming from your taps may not be warm enough. Conversely, if you choose a boiler with too high an output, you'll pay more for gas than is necessary.

The Vaillant EcoTEC Plus 637 system boiler has an output level of 37 kW, so which types of property would it be appropriate for?

Most Gas Safe boiler installers would recommend that a boiler with this output level would be most suitable for larger properties including detached homes with 15 or more radiators and two or more bathrooms.


Vaillant EcoTEC Plus 637 dimensions

The measurements of the Vaillant EcoTEC Plus 637 are 720 mm by 440 mm by 406 mm.

Vaillant EcoTEC Plus 637 – condensing or non-condensing?

We recommend that you select a condensing boiler like the Vaillant EcoTEC Plus gas Vaillant EcoTEC Plus 637 for your home if possible because of the environmental benefits and the money you'll save on your gas bills.

Condensing boilers are much more energy-efficient than older, non-condensing models as they capture and recycle the heat still present in the water vapour condensation and flue exhaust gases that your boiler creates when burning gas for reuse.

What energy efficiency ratings have been awarded to the Vaillant EcoTEC Plus 637 system?

How we heat our homes is an issue which many homeowners worry about as the world combats climate change and environmental damage.

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.

Will choosing a Vaillant EcoTEC Plus 637 system boiler for your home be positive for the environment? Let's examine the figures.

In the UK, by law, all boilers manufactured since April 2018 must have a SEDBUK “A” rating and operate to a minimum level of 92% energy efficiency. Prior to this, the minimum was 88% – 88/89% would score a "B" and 90% or more an "A" on the SEDBUK scale.

The energy efficiency rating measures the amount of energy a boiler consumes when it's in use and how much it loses on non-core operations.

Following testing, the Vaillant EcoTEC Plus 637 was given an efficiency rating of 94% and a SEDBUK grading of "A".

The ERP (or Energy Related Products Directive) is a European regulation governing products which require energy to operate throughout their lives and encourages manufacturers to create products that are more environmentally friendly.

The legislation is designed to reduce the potential for harmful gas emissions during manufacturing and actual use right through to the point of final disposal.

For the Vaillant EcoTEC Plus 637, the ERP rating is "A".

If the Vaillant EcoTEC Plus 637 breaks down, will I be covered by the warranty?

Vaillant offers a parts and labour warranty of 5 years on the Vaillant EcoTEC Plus 637.


Vaillant ecoTEC Plus 637 Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?No
P/L Warranty5 Years
Output in kW37 kW
Height720 mm
Width440 mm
Depth406 mm
MountingWall
ERP HeatA

The top 10 rated Gas System boilers

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

1Vaillant ecoTEC Plus 61295.72%
2Vaillant ecoTEC Plus 61595.20%
3Vaillant ecoTEC Plus 61894.37%
4Vaillant ecoTEC Plus 62493.33%
5Worcester Bosch Greenstar i System 9i92.89%
6Vaillant ecoTEC Plus 63092.75%
7Worcester Bosch Greenstar 4000 12kW92.50%
8Vaillant ecoTEC Exclusive IQ 62792.42%
9Vaillant ecoFIT Pure 61292.38%
10Vaillant ecoFIT Pure 61592.36%

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Vaillant ecoTEC Plus 637 System Gas boiler

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  2. Vaillant ecoTEC Plus 637
Plumbproud rating for this boiler
92.05%

Using the PlumbProud boiler quality scoring system, we have rated this model at 92.05%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

Fitted by an experienced Gas Safe PlumbProud engineer, the cost for this Vaillant ecoTEC Plus 637 System boiler will be in the region of £2,500 on a standard, non-complicated installation.

For a free, no-obligation quotation on this Vaillant ecoTEC Plus 637 System boiler or for our professional advice on whether the Vaillant EcoTEC Plus 637 is suitable for your property, please call 01604 343053, click here to email our team or enter your postcode into the quotation box on this page.


Installed price guideline
£2,500

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Vaillant ecoTEC Plus 637 Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?No
P/L Warranty5 Years
Output in kW37 kW
Height720 mm
Width440 mm
Depth406 mm
MountingWall
ERP HeatA

Vaillant ecoTEC Plus 637 System Gas boiler frequently asked questions

Vaillant EcoTEC Plus 637 - a regular, combi or system boiler?

The Vaillant EcoTEC Plus 637 boiler is a system boiler you may wish to consider when looking for a new boiler for your house or flat.

If you choose a system boiler, you'll have to find somewhere to install a hot water cylinder too - they're normally located in an airing or landing cupboard. However, unlike regular boilers, they do not require a cold water tank to be fitted in the attic, making them suitable for homes with limited or no roof space or if you're planning a loft conversion in the future.

System boilers distribute the hot water to your taps and radiators using (often built-in) circulation pumps and are easier to install from scratch since they have one less component (the water tank) to consider.

System boilers also require programming to produce heat and hot water, so they cannot produce this instantly. Nonetheless, the cylinder keeps water hot for use later, so you don't have to wait as long as you set your timer and keep it on long enough to heat enough water.

Is the Vaillant EcoTEC Plus 637 system boiler suitable for my house or apartment?

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

A boiler's output level measures how much power it can use to provide you with the hot water you need for your radiators and taps. If a boiler has a high output rate, it can heat greater volumes of water.

If you choose a boiler with too low an output, you'll find that the water coming out of your taps and in your radiators won't be as hot as you want it to be. Choosing one whose output is too high means you'll pay more than you need to for the gas your boiler needs to work.

The Vaillant EcoTEC Plus 637 system outputs at a maximum of 37 kW, so which types of property would this Vaillant ecoTEC Plus 637 System boiler be appropriate for?

An experienced PlumbProud Gas Safe boiler installer would almost certainly recommend that this Vaillant ecoTEC Plus 637 System boiler would be most suitable for larger properties including detached homes with 15 or more radiators and two or more bathrooms.


Where will the Vaillant EcoTEC Plus 637 fit in my house?

The Vaillant EcoTEC Plus 637 is 720 mm [H] by 440 mm [W] by 406 mm [D] in size.

EcoTEC Plus 637 – non-condensing or condensing?

The Vaillant EcoTEC Plus 637 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 Vaillant EcoTEC Plus 637 system good for the environment?

How we heat our homes has become a major issue for many people worried about climate change and environmental issues in general.

As much as 14% of the UK’s greenhouse gas production derives from our domestic central heating systems. Gas boilers are responsible for dangerous levels of nitrogen dioxide emissions in Britain's largest cities.

Would choosing a Vaillant EcoTEC Plus 637 system help the environment? Let’s see what the performance figures 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 637 was given an efficiency rating of 94% and a band rating of "A".

The Energy Related Products (ERP) Directive's aim is to reduce the harmful gas emissions created during a product’s manufacture and active end use right through to its disposal.

The ERP rating for the Vaillant EcoTEC Plus 637 is "TBC".

How long is the warranty offered by the manufacturer for the Vaillant EcoTEC Plus 637 boiler?

The Vaillant EcoTEC Plus 637 boiler has a warranty covering parts and labour costs for up to 5 years after installation.


The top 10 rated Gas System boilers

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

1Vaillant ecoTEC Plus 61295.72%
2Vaillant ecoTEC Plus 61595.20%
3Vaillant ecoTEC Plus 61894.37%
4Vaillant ecoTEC Plus 62493.33%
5Worcester Bosch Greenstar i System 9i92.89%
6Vaillant ecoTEC Plus 63092.75%
7Worcester Bosch Greenstar 4000 12kW92.50%
8Vaillant ecoTEC Exclusive IQ 62792.42%
9Vaillant ecoFIT Pure 61292.38%
10Vaillant ecoFIT Pure 61592.36%
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