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Glow Worm Energy 25kW boiler

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Plumbproud rating

75.45%

Glow worm Energy 25kW System Gas boiler

Using the PlumbProud boiler quality scoring system, we have rated this model at 75.45%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

We anticipate the supply and installation cost for this model of boiler will be around £1,900 on a standard fit.

If you would like a free quote and professional advice and guidance to help you decide if the Glow Worm Energy 25kW 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

£1,900

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Glow worm Energy 25kW System Gas boiler frequently asked questions

Glow Worm Energy 25kW - a regular, combi or system boiler?

If you are searching for a system boiler for your house or flat, the Glow Worm Energy 25kW is certainly one to consider.

System boilers are very popular for properties with limited or no loft space or when homeowners want to keep the space for a loft conversion. This is because, unlike heat only boilers, they don’t require a cold-water tank - however, system boilers do need a hot water cylinder (often installed in an airing or landing cupboard).

Instead of the traditional cold-water tanks, system boilers use their built-in circulating pumps to heat the water needed for your taps and radiators. This also makes them an easier choice for engineers to install as there is one less large component to find space for and fit.

Like a regular boiler, you need to use a control panel to control a system boiler. Set the times when you want central heating and hot water to be available, such as in the morning when there might be greater demand for showers, and it will be there. Although hot water is not available on-demand like with a combi boiler, once the water has been heated it will stay in the hot water cylinder until it’s used up.

Is a Glow Worm Energy 25kW system boiler appropriate for my house or apartment?

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 Glow worm Energy 25kW System 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 Glow Worm Energy 25kW system boiler has an output level of 25 kW, so which types of property would it be appropriate for?

An experienced heating engineer would recommend that the Glow Worm Energy 25kW system boiler is a suitable choice for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


How big is the Glow Worm Energy 25kW?

The Glow Worm Energy 25kW stands at 700 mm tall, 390 mm wide and 280 mm deep.

Is this Glow Worm boiler non-condensing or condensing?

We always recommend to clients that they select the very latest condensing boiler for their home.

Condensing boilers like the Glow Worm Energy 25kW are more efficient with the gas they use in operation, meaning that you'll benefit from lower fuel bills. Condensing boilers are also better for the environment.

They achieve their efficiency by capturing and recycling the heat still present in the water vapour condensation and flue exhaust gases created when a boiler burns gas to get the energy it needs. It then reuses that recycled heat to perform a number of tasks, including heating the colder water that comes back to your boiler via the radiator.

How energy efficient is the Glow Worm Energy 25kW system boiler?

With more and more people concerned about climate change, how we heat our homes and the damage it does to the environment is increasingly being questioned by British homeowners.

14% of the UK’s greenhouse gas production comes from central heating. In the bigger cities, gas boilers in particular are responsible for dangerous levels of nitrogen dioxide emissions.

Is the Glow Worm Energy 25kW system boiler an environmentally friendly choice for your home? Here’s what the figures say.

Boilers manufactured and installed in the UK are assigned energy efficiency ratings following testing to an agreed set of standards. These scores indicate how much energy the boiler uses and how much goes to waste when it's in operation.

By law, boilers must achieve a SEDBUK rating of "A" subject to achieving a minimum of 92% energy efficiency. Prior to April 2018, the minimum was 88% (88% and 89% on the SEDBUK are graded "B" and 90% and above is graded "A").

The Glow Worm Energy 25kW was awarded an efficiency rating of 89.3% with a SEDBUK band rating of "B".

The Energy Related Products (ERP) Directive is a European directive which applies to all products that consume energy over their lifetime.

It encourages companies to create products that are environmentally friendlier at all life cycle stages, including initial manufacturing and end use right through to final disposal, with the aim of reducing harmful gas emissions.

The Glow Worm Energy 25kW is rated "A".

Does a Glow Worm Energy 25kW system boiler come with a warranty period?

You receive a parts and labour warranty of 2 years with the Glow Worm Energy 25kW boiler.


Glow worm Energy 25kW Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.3%
Band ratingB
LPG Compatible?No
P/L Warranty2 Years
Output in kW25 kW
Height700 mm
Width390 mm
Depth280 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%

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

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Glow Worm Energy 25kW boiler

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Glow worm Energy 25kW System Gas boiler

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  2. Glow worm Energy 25kW
Plumbproud rating for this boiler
75.45%

We have awarded this Glow worm Energy 25kW System boiler a rating of 75.45% in our boiler quality benchmark tests. To determine a score for each boiler, we factor in several different points of comparison including energy efficiency, manufacturer guarantees, estimated running costs, price and more.

You should budget approximately £1,900 for the supply and installation of this Glow worm Energy 25kW System boiler on a standard, non-complicated fit.

For professional advice on whether the Glow Worm Energy 25kW is the right boiler for your home or to receive a free quotation, please call 01604 343053 to speak to our friendly team. You are also welcome to email us by clicking here or you can enter your postcode into the quotation box on this page.


Installed price guideline
£1,900

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Glow worm Energy 25kW Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.3%
Band ratingB
LPG Compatible?No
P/L Warranty2 Years
Output in kW25 kW
Height700 mm
Width390 mm
Depth280 mm
MountingWall
ERP HeatA

Glow worm Energy 25kW System Gas boiler frequently asked questions

Is the Glow Worm Energy 25kW a regular, combi or system boiler?

Glow Worm’s Energy 25kW is one you might consider if you’re looking for a system boiler for your house or flat.

System boilers are suitable for homes with a higher-than-average demand for central heating and water - for example, larger homes and larger families.

Tell the boiler when you want hot water using the control panel - it draws water from the mains, heats it and keeps it warm throughout the day in the hot water cylinder. As long as you remember to tell the boiler when you want hot water, you have a big enough cylinder, and there's not an unusually high demand for water on a particular day, you should have hot water whenever you need it.

System boilers do not require a cold water storage tank either, unlike heat only boilers, meaning they're cheaper, quicker and easier to install.

Is a Glow Worm Energy 25kW system boiler suitable 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 Glow worm Energy 25kW System 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 Glow Worm Energy 25kW system boiler has an output level of 25 kW, so which types of property would it be appropriate for?

Most experienced Gas Safe boiler installers would suggest that the Glow Worm Energy 25kW system boiler would be a suitable choice for installation in medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


What size is a Glow Worm Energy 25kW boiler?

The Glow Worm Energy 25kW boiler is 700 mm high, 390 mm wide, and 280 mm deep.

Is the Glow Worm Energy 25kW a non-condensing or condensing boiler?

The Glow Worm Energy 25kW is a condensing gas boiler - in fact, we recommend that you select this model or one of the latest condensing boilers on the market as the technology continues to improve over time.

Condensing boilers capture the heat still present in the flue exhaust gases and water vapour condensation created when the gas is burned and they recycle this back into the heating system to warm up the cold water re-entering the boiler from your radiators.

They're much more environmentally friendly and installing one results in much lower annual gas bills.

How environmentally friendly is the Glow Worm Energy 25kW system?

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

In the UK, central heating systems account for 14% of greenhouse gas production. Gas boilers in particular are responsible for emissions of dangerous nitrogen dioxide in British cities.

If you would like your next boiler to help in the fight against climate change, would the Glow Worm Energy 25kW system be a suitable choice?

All boilers manufactured in the UK from April 2018 must achieve a SEDBUK “A” grade and an energy efficiency rating of 92% or above. Before that, the minimum was 88% - efficiency ratings of 88% and 89% were scored a “B” and 90%+ an "A".

A boiler's energy efficiency rating describes how much energy it uses and wastes during its standard operation.

The energy efficiency of the Glow Worm Energy 25kW was rated at 89.3% with a SEDBUK grading of "B".

The ERP (or Energy Related Products Directive) is European legislation which applies to all products that consume energy throughout their lifetime.

Its purpose is to encourage manufacturers to offer products that are kinder to the environment by reducing harmful gas emissions at all stages, from production and end use right through to disposal.

The ERP rating for the Glow Worm Energy 25kW is "A".

What is the warranty period for the Glow Worm Energy 25kW?

The Glow Worm Energy 25kW is supplied with a parts and labour warranty of 2 years.


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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