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Ferroli Energy Top W125 boiler

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Plumbproud rating

79.54%

Ferroli Energy Top W125 Combi Gas boiler

Based on a wide-ranging set of important factors including the cost to install the boiler, its energy efficiency rating, running costs, and so on, this Ferroli Energy Top W125 Combi boiler receives a score of 79.54% on our PlumbProud quality scoring system.

We would expect that, unless there are complications during fitting, this Ferroli Energy Top W125 Combi boiler would cost £2,100 supplied and professionally installed through PlumbProud.

If you would like a free quote and professional advice and guidance to help you decide if the Ferroli Energy Top W125 is the right choice for your home, please get in touch. You can do this by entering your postcode in the quote boxes on this page, click here to email us or give us a call on 01604 343053.


Installed price around

£2,100

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Ferroli Energy Top W125 Combi Gas boiler frequently asked questions

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

If you’re looking for a combi boiler for your house or flat, then the Ferroli Energy Top W125 is one you may wish 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.

Would the Ferroli Energy Top W125 combi be a suitable 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.

Boiler output is measured in kilowatts and tells you how much power a boiler can use to heat the water your taps, showers and radiators need. The higher the output, the more power it has.

When choosing a boiler, you should choose one that can cope with the peak demand for hot water in your home and not just your typical usage.

If its output is too low, sometimes your hot water will not be hot enough, but if your boiler's output is too high for your needs, your gas bills will go up and not down.

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

An experienced Gas Safe engineer would say that this Ferroli Energy Top W125 Combi boiler's level of output makes it suitable for installing in larger properties including detached homes with 15 or more radiators and two or more bathrooms.

When choosing a combi boiler for your home, you need to think about "flow rates" as well as output rates. This Ferroli Energy Top W125 Combi boiler's flow rate is 12 L/m.

This indicates the maximum volume of hot water (measured in litres per minute) that your boiler can heat then distribute to your taps, showers and radiators at any one time. The greater the demand for hot water in your home, the higher the flow rate you will require.

However, all combi boilers like the Ferroli Energy Top W125 draw water directly from the mains and heat it instantly.

This means that they can only heat and distribute water at the rate it enters the property (the "mains pressure" rate). For example, if your mains pressure is 11 litres per minute, this will be the highest flow rate you can achieve even if your boiler's flow rate is 17l/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.


Where will the Ferroli Energy Top W125 fit in my house?

The Ferroli Energy Top W125 measures TBC mm in height and has a width of TBC mm and a depth of TBC mm.

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

We recommend that, if possible, you select one of the very latest condensing gas boilers on the market like the Ferroli Energy Top W125.

Condensing boilers are better for the environment because they capture and recycle the heat still present in flue exhaust gases and water vapour condensation for re-use, meaning lower greenhouse gas emissions.

They're also a lot cheaper to run meaning that, if you're replacing a very old and inefficient boiler, the savings on your gas bill over 5-10 years add up to more than you pay for the boiler itself.

Is the Ferroli Energy Top W125 combi good for the environment?

Price and performance are two important issues when choosing a boiler but now, for many people in the UK, so is the environmental impact of how we heat our homes and its effect on climate change.

Nitrogen dioxide emissions in Britain's largest cities are at dangerous levels and this has been caused by gas boilers. In fact, 14% of the UK’s greenhouse gases are produced by central heating.

Will choosing a Ferroli Energy Top W125 combi boiler for your home be positive for the environment? Let's examine the figures.

Boilers manufactured or supplied to UK domestic properties must achieve a legal minimum energy efficiency rating of 92% (equivalent to a good "A" grade using the SEDBUK scale). Prior to this, the minimum was 88% (88% and 89% are a "B" SEDBUK grade and anything 90% or above is an "A" grade).

The energy efficiency rating of a boiler refers to the amount of energy it uses to perform its everyday functions as well as the amount of energy it wastes.

The Ferroli Energy Top W125 has been given a rating of 98% for energy efficiency, equivalent to a SEDBUK "A" rating.

Will I be covered if the Ferroli Energy Top W125 combi breaks down?

The parts and labour warranty on the Ferroli Energy Top W125 lasts for 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

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

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 79.54% on the PlumbProud boiler benchmarking system.

On a standard fit, we would expect this Ferroli Energy Top W125 Combi boiler to cost you £2,100 supplied and fully installed by an experienced Gas Safe PlumbProud fitter.

To receive a free quote on the Ferroli Energy Top W125 boiler, as well as professional advice on whether it will meet the needs of your home, simply enter your postcode in the quote box on this page, click here to email us, or call 01604 343053.


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 - combi, system or regular 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 need one or more large tanks to work - one to heat and keep water warm for immediate use and the other to store water intended for heating later. Finding space for these large tanks is difficult in British residential property - remember that our houses and flats are among the smallest in the world. This is the problem that combi boilers were designed to solve when they were introduced in the 1970s.

Combi boilers don't need a tank - instead, they instantly heat water drawn from the mains using technology inside the boiler. This hot water is then distributed immediately to your taps or radiators on demand.

The biggest disadvantage to combi boilers is that they have a maximum capacity for heating water, meaning that they work best when only one point within a household wants hot water. For example, if someone is taking a shower and another person uses a hot water tap at the same time, the water pressure, volume and temperature to both points drops.

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

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

This Ferroli Energy Top W125 Combi boiler gets its power from gas and the power it's capable of producing is measured in kilowatts - the output rate is actually a kilowatt rate. The higher the output rate, the more kilowatts a boiler can use when heating water.

If you choose a boiler whose output rate is too low, it may not have enough power to make your water as hot as you would like. If you choose a boiler whose output rate is too high, you won't have to put up with lukewarm water but you will face higher gas bills.

The Ferroli Energy Top W125 combi boiler has an output level of 116 kW, so which types of property would it be appropriate for?

Most Gas Safe boiler installers would suggest that the most suitable type of property for installing this Ferroli Energy Top W125 Combi boiler in would be larger properties including detached homes with 15 or more radiators and two or more 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 Ferroli Energy Top W125 Combi boiler's flow rate is 12 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.


Ferroli Energy Top W125 dimensions

The Ferroli Energy Top W125 stands at TBC mm tall, TBC mm wide and TBC mm deep.

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

We strongly recommend that you choose a condensing boiler like the Ferroli Energy Top W125 - the technology is improving every year so the newer the boiler, the better.

A condensing boiler captures and recycles the warmth still present in flue exhaust gases and water vapour condensation into heat, allowing it to perform more efficiently on tasks like heating the colder water returning from your radiators.

They also offer significant annual savings on household gas bills as well as being more environmentally friendly.

Is choosing the Ferroli Energy Top W125 combi boiler environmentally friendly?

How we heat our homes has become a pressing issue of concern for many homeowners worried about climate change and the environmental impact of their personal choices.

Around 14% of the greenhouse gases produced in the UK is a result of our central heating systems. Gas boilers are responsible for dangerous levels of nitrogen dioxide emissions in some of our largest cities.

Is the Ferroli Energy Top W125 combi boiler an environmentally friendly choice for your home? Here’s what the figures say.

The energy efficiency rating of the Ferroli Energy Top W125 is 98% 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).

What warranty does the Ferroli Energy Top W125 combi boiler come with?

Ferroli’s Energy Top W125 boiler includes a parts and labour warranty of 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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