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Ferroli Energy Top W125 boiler

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Plumbproud rating

79.54%

Ferroli Energy Top W125 Combi Gas boiler

Considering lots of different factors such as price installed, manufacturer guarantees, energy efficiency, and the likely running cost, we’ve given this Ferroli Energy Top W125 Combi boiler a rating of 79.54% using our PlumbProud quality scoring system.

On most non-complicated installations, we would expect this Ferroli Energy Top W125 Combi boiler to cost £2,100 supplied and fully professionally installed.

For a free, no-obligation quotation on this Ferroli Energy Top W125 Combi boiler or for our professional advice on whether the Ferroli Energy Top W125 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 around

£2,100

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Ferroli Energy Top W125 Combi Gas boiler frequently asked questions

Ferroli Energy Top W125 - a regular boiler, combi boiler or system boiler?

If you are searching for a combi boiler for your house or flat, the Ferroli Energy Top W125 is certainly one to consider.

Combi boilers were introduced by manufacturers in the 1970s to offer British homeowners a way to cheaply and reliably heat their homes and have hot water without taking up too much space. Previously, most boilers had one or more storage tanks, which either heated water and kept it warm or held water to be heated later.

With combi boilers, there is no need to find space for large tanks around your home as the hot water needed for your radiators and taps is available on demand. Combi boilers do this by drawing water from your mains supply, heating it instantly whenever you need it and then distributing it to where it's needed in the home.

The major disadvantage to combi boilers is that they have a maximum capacity for heating water. In a larger household, water pressure, volume and temperature will drop if two or more people are trying to use hot water at the same time.

Is a Ferroli Energy Top W125 combi the right boiler for my house or flat?

Whether this Ferroli Energy Top W125 Combi boiler is right for where you live depends on its size or "output" level. Size does not mean its physical dimensions - it means how powerful it is.

A boiler’s output is a measurement of the amount of power it can use to provide hot water to your taps and radiators. The higher its output rate, the more water it can heat.

If your new boiler’s output is too low, your hot water might not be as hot as you want it to be. If it's too high, you’ll be paying more for gas than you need to.

The output of the Ferroli Energy Top W125 combi boiler is 116 kW, so which types of property would this be appropriate for?

A heating engineer would recommend that this Ferroli Energy Top W125 Combi boiler would provide adequate heating and hot water for larger properties including detached homes with up to 15 or more radiators and two or more bathrooms.

Please remember to consider "flow rates" as well when choosing your new boiler. All combi boilers including the Ferroli Energy Top W125 draw water from the mains.

Each combi boiler has its own flow rate (measured in litres per minute) - this tells you how much water it can heat and distribute to your home’s taps and radiators straight from the mains. This Ferroli Energy Top W125 Combi boiler's flow rate is 12 L/m.

There is no benefit to you in choosing a combi with a high flow rate if your mains pressure is low - save money by buying a boiler whose flow rate is equal to or slightly more than the pressure in your water pipes.

In addition, if you have a lot of radiators and bathrooms in your home or you have a large household that often uses lots of hot water at the same time, like for regular morning and evening showers, a combi boiler may not be suitable.

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 size is the Ferroli Energy Top W125 boiler?

The Ferroli Energy Top W125 measures TBC mm high and TBC mm wide by a depth of TBC mm.

Is the Ferroli Energy Top W125 condensing or non-condensing?

The Ferroli Energy Top W125 is a condensing gas boiler - we strongly recommend that you choose one of the latest condensing models if possible.

With a condensing boiler, you save money on your gas bills because your boiler captures and recycles the heat present in the flue exhaust gases and water vapour condensation for re-use, meaning they operate far more economically and efficiently.

Is the Ferroli Energy Top W125 combi boiler environmentally friendly?

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.

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 the Ferroli Energy Top W125 combi help the environment? Let's see what the 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 Ferroli Energy Top W125 was given an efficiency rating of 98% and a band rating of "A".

Is this Ferroli Energy Top W125 combi covered by a warranty?

The Ferroli Energy Top W125 boiler comes with a parts and labour warranty lasting 5 years.


Ferroli Energy Top W125 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating98%
Band ratingA
LPG Compatible?No
P/L Warranty5 Years
Output in kW116 kW
MountingWall
Flow rate12 L/m

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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Ferroli Energy Top W125 boiler

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Ferroli Energy Top W125 Combi Gas boiler

  1. Home
  2. Ferroli Energy Top W125
Plumbproud rating for this boiler
79.54%

We have rated this Ferroli Energy Top W125 Combi boiler at 79.54% using the PlumbProud quality scoring system. To determine a rating, we weigh up a number of important considerations including the energy efficiency, estimated running costs, manufacturer's warranty, price of the boiler and more.

On most non-complicated installations, we would expect this Ferroli Energy Top W125 Combi boiler to cost £2,100 supplied and fully professionally installed.

Get a better understanding of installation costs for the Ferroli Energy Top W125 by entering your postcode in the box supplied on this page. You can also call our professional team with any boiler-related queries on 01604 343053. Alternatively, please click here to email us.


Installed price guideline
£2,100

Get your free quote

Ferroli Energy Top W125 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating98%
Band ratingA
LPG Compatible?No
P/L Warranty5 Years
Output in kW116 kW
MountingWall
Flow rate12 L/m

Ferroli Energy Top W125 Combi Gas boiler frequently asked questions

Ferroli Energy Top W125 - a regular boiler, combi boiler or system boiler?

When looking for a combi boiler for your house or flat, the Ferroli Energy Top W125 might be a suitable option for you.

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.

Should I install a Ferroli Energy Top W125 combi boiler in my home?

You should make sure that the boiler you install in your property is the right "size". And, by size, we don't mean how big it is, we mean how powerful it is - the "output".

Your boiler has to be powerful enough to heat all the hot water you need for your radiators and taps. Power is measured in kilowatts and the more kilowatts a boiler has available to it, the more water it can heat.

If the output (measured in kilowatts) is too high, you'll have all the power you need and more but your gas bills will be much higher. If it's too low, you'll often find that the water coming out of your taps and fed into your radiators is only lukewarm.

With the Ferroli Energy Top W125 combi's output at 116 kW, which types of property would this Ferroli Energy Top W125 Combi boiler be most appropriate for?

An experienced Gas Safe boiler installer would be likely to recommend that this Ferroli Energy Top W125 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.

With combi boilers, you need to consider the flow rate as well as the output rate. The flow rate (shown in litres per minute) measures how much water your boiler can draw from the mains which it then instantly heats and distributes to your taps and radiators.

However, a high flow rate is of little to no value if your local water pressure is low. If your local mains water pressure is 10l/m and your flow rate is 12l/m, your boiler will only be able to process 10l/m.

If you live in an area with high water pressure but your household has multiple bathrooms and/or radiators and many members of your household want to use hot water at the same time (like morning or evening baths or showers), it's unlikely that you'll be able to find a combi with a high enough flow rate.

As an indication, a power shower needs about 10 litres of water per minute, whereas the flow rate of this Ferroli Energy Top W125 Combi boiler is 12 L/ml/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.


The size of the Ferroli Energy Top W125 in millimetres

The Ferroli Energy Top W125 measures TBC mm in height by TBC mm in width by TBC mm in depth.

Is the Ferroli Energy Top W125 condensing or non-condensing?

We recommend that you choose a condensing boiler wherever possible like the Ferroli Energy Top W125 - try to go for the latest model, if possible, to take advantage of improving technology.

Condensing boilers capture and recycle the warmth still present in the water vapour condensation and in flue exhaust emissions created by burning gas to make them more efficient and economical to run.

You will save money on your gas bills too, plus condensing boilers are friendlier to the environment.

Is the Ferroli Energy Top W125 combi boiler rated as environmentally friendly?

With growing concern among the public about accelerating climate change, how we heat our homes and the impact this has on the environment has become a major topic of concern for many homeowners.

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.

If you decide to install a Ferroli Energy Top W125 combi in your home, will you be helping the environment with your choice? Let’s have a look at the figures.

The Ferroli Energy Top W125 has been awarded an efficiency rating of 98% and a SEDBUK band rating of "A".

In the UK, all boilers manufactured and supplied must have an energy efficiency rating of at least 92% or a SEDBUK "A" grade. Until April 2018, the minimum rating was 88% (88% and 89% are equivalent to a SEDBUK "B" rating and anything higher is rated "A").

A boiler's energy efficiency rating describes the amount of energy it uses and wastes when in normal operation.

Does a Ferroli Energy Top W125 combi boiler come with a warranty period?

The parts and labour warranty offered with this Ferroli Energy Top W125 Combi boiler covers you for 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%
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