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Glow Worm Ultimate3 25 boiler

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Plumbproud rating

79.98%

Glow worm Ultimate3 25 System Gas boiler

This Glow worm Ultimate3 25 System boiler scores 79.98% on our PlumbProud boiler quality benchmark tests. To determine our rating, we consider many factors, such as the cost of installation, manufacturer guarantees, energy efficiency, and likely running costs.

£1,800 is the amount you should budget to have this particular boiler installed on a straightforward installation.

To receive a free quote on the Glow Worm Ultimate3 25 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 around

£1,800

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Glow worm Ultimate3 25 System Gas boiler frequently asked questions

Is the Glow Worm Ultimate3 25 a system boiler, a combi boiler or a regular boiler?

Looking for a gas system boiler for your flat or house? Then the Glow Worm Ultimate3 25 may be an option you should consider.

System boilers need a hot water cylinder to work - normally fitted inside an airing or landing cupboard or similar spot. Unlike heat only boilers, they do not require a separate cold water tank, making them a more suitable choice if you have no loft, lack space in the attic, or are planning to do a loft conversion.

These boilers distribute hot water around your home to your taps and radiators using (often built-in) circulating pumps and they're easier to install as there is one less component (the water tank) to find room for. A system boiler needs to be programmed to tell it what times you want heat and hot water - unlike combi boilers, they don't provide hot water on demand.

Is the Glow Worm Ultimate3 25 system suitable for my house or flat?

It's best to choose a boiler whose size or "output" is right for your property. With a boiler, however, size does not mean how big the boiler is, it means how much power it has.

The amount of hot water you get from showers, bathrooms, and sinks and heat from your radiators depends on your boiler's output (measured in kilowatts). The higher the level of output, the better your home will be heated and you can be more certain that the water from your taps will be as hot as you want.

However, you must be careful. You might not get the hot water you want if your boiler output is too low. If it's too high, you'll be paying more than you need to for gas.

With the Glow Worm Ultimate3 25 system's output at 25 kW, which types of property would this Glow worm Ultimate3 25 System boiler be most appropriate for?

A boiler engineer would be likely to recommend that this Glow worm Ultimate3 25 System boiler is capable of providing heating and hot water to 10-15 radiators and two bathrooms and would therefore be most suitable for medium-sized homes and larger apartments.


Glow Worm Ultimate3 25 dimensions

The Glow Worm Ultimate3 25 is TBC mm high by TBC mm wide by TBC mm deep.

Is the Glow Worm Ultimate3 25 condensing or non-condensing?

We strongly recommend that you choose a condensing boiler like the Glow Worm Ultimate3 25 - 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.

Does the Glow Worm Ultimate3 25 system protect the environment?

With so many of us worried about the environmental impact of our personal choices, the relationship between how we heat our homes and climate change has become an important issue for many homeowners.

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.

Will installing a Glow Worm Ultimate3 25 system be a positive contribution to the environment? Let's see what the experts say.

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 Glow Worm Ultimate3 25 was given an efficiency rating of 89.7% and a band rating of "B".

What is the warranty period on a Glow Worm Ultimate3 25 system boiler?

The parts and labour warranty offered with this Glow worm Ultimate3 25 System boiler covers you for 5 years.


Glow worm Ultimate3 25 Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.7%
Band ratingB
LPG Compatible?No
P/L Warranty5 Years
Output in kW25 kW
MountingWall

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 Ultimate3 25 boiler

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Glow worm Ultimate3 25 System Gas boiler

  1. Home
  2. Glow worm Ultimate3 25
Plumbproud rating for this boiler
79.98%

According to our PlumbProud boiler quality scoring system, we rate this model 79.98%. We rank boilers using a number of different factors including price installed, manufacturer guarantees, energy efficiency, likely running costs, and more.

On a straightforward installation of this make of boiler using PlumbProud, you should expect to budget around £1,800.

To receive a free quote on the Glow Worm Ultimate3 25 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
£1,800

Get your free quote

Glow worm Ultimate3 25 Gas System boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.7%
Band ratingB
LPG Compatible?No
P/L Warranty5 Years
Output in kW25 kW
MountingWall

Glow worm Ultimate3 25 System Gas boiler frequently asked questions

Is the Glow Worm Ultimate3 25 a combi, system or regular boiler?

The Glow Worm Ultimate3 25 boiler is an option you may wish to consider if you're looking for a system boiler for your house or flat.

Ever since system boilers arrived on the market, they have been a popular choice in new homes. In the same way as regular boilers, they work along with a hot water cylinder, which is usually located in an airing cupboard. Since system boilers do not require a separate cold water tank, they appeal to some homeowners, especially if they intend to convert their loft in the future.

Their design includes (often built-in) circulating pumps to send hot water to your taps and radiators. They're also quicker and easier to install because you don't need to find room for and fit a water storage tank.

In addition, system boilers require programming for the flow of heat and hot water, which is not available right away. In any case, the cylinder keeps the water hot for use later, so you shouldn't have to wait for your bath as long as you set your timer and leave it on for long enough to heat sufficient water to use throughout the day.

Should I install a Glow Worm Ultimate3 25 system boiler in my house or apartment?

It's best to choose a boiler whose size or "output" is right for your property. With boilers, however, size does not mean how big a boiler is, it means how much power it has.

The output of a boiler is measured in kilowatts and tells you how much power it has available to heat the water it sends to your hot taps, showers and radiators. The greater the demand for hot water in your home, the larger the output you will need.

It is important to select a boiler with the optimal output rate. Choose one with too high an output and your gas bills will be too expensive. Choose one with too low an output and sometimes the water in your radiators and coming out of your taps will be barely lukewarm.

The output of the Glow Worm Ultimate3 25 system is 25 kW kilowatts, so which types of property would this be most suitable for?

To most boiler engineers, the Glow Worm Ultimate3 25 system Ultimate3 would be most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


How big is the Glow Worm Ultimate3 25?

The dimensions of the Glow Worm Ultimate3 25 are TBC mm [H] x TBC mm [W] x TBC mm [D].

Is this Glow Worm boiler condensing or non-condensing?

Condensing gas boilers like the Glow Worm Ultimate3 25 are more energy-efficient and choosing one for your home will cut the amount you pay every year for your gas.

They do this by capturing the heat in water vapour condensation and in exhaust gases which would normally be expelled via the flue. They then recycle that heat, returning it to the system to, among other tasks, reheat colder water that is returning to your boiler from your radiators.

Is the Glow Worm Ultimate3 25 system boiler environmentally friendly?

As more of us are increasingly concerned about climate change, how we heat our homes and its impact on the environment has become an issue of importance to homeowners.

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.

If you decide to install a Glow Worm Ultimate3 25 system in your home, will you be helping the environment with your choice? Let’s have a look at the figures.

All new British boilers must perform to a legal minimum energy efficiency of 92% (a low to good SEDBUK "A" rating). Prior to April 2018, the target was 88% (86-90% = SEDBUK "B" and 90%+ = SEDBUK "A").

Efficiency ratings are intended to let consumers know how much energy a boiler uses in its day-to-day activities and how much energy goes to waste.

The Glow Worm Ultimate3 25 was awarded an efficiency rating of 89.7%, equivalent to a SEDBUK grade of "B".

How many years' warranty does the Glow Worm Ultimate3 25 system come with?

The Glow Worm Ultimate3 25 is covered by a parts and labour warranty of 5 years following 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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