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Glow Worm Ultimate3 25 boiler

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Plumbproud rating

79.98%

Glow worm Ultimate3 25 System Gas boiler

We have awarded this Glow worm Ultimate3 25 System boiler a rating of 79.98% 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.

On most non-complicated installations, we would expect this Glow worm Ultimate3 25 System boiler to cost £1,800 supplied and fully professionally installed.

You can get more information and a free quote for the Glow Worm Ultimate3 25 boiler by entering your postcode in the quote boxes on this page, clicking here to email us, or by giving us a call on 01604 343053.


Installed price around

£1,800

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Glow worm Ultimate3 25 System Gas boiler frequently asked questions

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

The Glow Worm Ultimate3 25 is a system boiler you may wish to consider if you want this particular type of boiler for your house or flat.

Like heat only boilers, system boilers need a hot water cylinder to work - they're normally installed inside an airing or landing cupboard. However, since system boilers do not require a separate cold water tank, they are popular with homeowners who are planning to convert their loft or where attic space is already at a premium.

They're able to distribute the hot water you need to taps and radiators through (often built-in) circulating pumps and, because there's no water tank to install, they're easier, quicker and cheaper to install than heat only boilers. To get the heat and hot water you need when you need it, just use the control panel to program the times and days you want.

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 PlumbProud boiler engineer would almost certainly recommend that this Glow worm Ultimate3 25 System boiler is most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Glow Worm Ultimate3 25 dimensions

The Glow Worm Ultimate3 25 has the following dimensions - TBC mm high, TBC mm wide, and TBC mm deep.

Glow Worm Ultimate3 25 – non-condensing or condensing?

We recommend that, if possible, you select one of the very latest condensing gas boilers on the market like the Glow Worm Ultimate3 25.

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 system Glow Worm Ultimate3 25 boiler energy efficient?

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.

Is the Glow Worm Ultimate3 25 system boiler an environmentally friendly choice for your home? Here’s what the figures say.

All boilers manufactured after April 2018 in the UK must be rated as an “A” on the SEDBUK grading system, subject to a minimum energy efficiency rating of 92% or above. Before that, the minimum rate was 88% - boilers with an energy efficiency of 88% or 89% were given a “B” rating. Boilers scoring 90% or more were given an "A" rating.

The energy efficiency rating for a boiler describes the amount of energy it uses and how much goes to waste in operation.

The Glow Worm Ultimate3 25 has an efficiency rating of 89.7% with a SEDBUK grade of "B".

How long is the warranty offered by the manufacturer for the Glow Worm Ultimate3 25 boiler?

The Glow Worm Ultimate3 25 boiler is covered by a parts and labour warranty of 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%

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The ideal boiler perfect for the largest homes

System boilers

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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%

Using the PlumbProud boiler quality scoring system, we have rated this model at 79.98%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

This Glow worm Ultimate3 25 System boiler will cost approximately £1,800 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

If you would like a free quote and professional advice and guidance to help you decide if the Glow Worm Ultimate3 25 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 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 standard, combi or system boiler?

You might want to consider the Glow Worm Ultimate3 25 for your house or flat if you are looking for a system boiler.

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

Combi boilers heat water on demand but the amount of water they can actually deliver to taps is determined by the mains water pressure, flow rate and power. System boilers instead use a hot water cylinder that stores and keeps water hot throughout the day. As long as you remember to program the times you want hot water and the cylinder still has water left in it, 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 the Glow Worm Ultimate3 25 system boiler a suitable option for my house or flat?

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

Your boiler’s output is a measurement of the power it has available to heat the volume of water required for your taps and radiators. The higher the output rate, the more water it can heat.

You need to be careful to select a boiler with the optimal level of output for your property though. That's because, if your boiler output is too low, your water and radiators will often not be as hot as you want them to be. If the output is too high, you’ll be paying more for gas than you need to.

The output of the Glow Worm Ultimate3 25 system is 25 kW, so which types of property would this Glow worm Ultimate3 25 System boiler be appropriate for?

A Gas Safe boiler installer would say that this Glow worm Ultimate3 25 System boiler's level of output makes it suitable for installing in medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Making space for 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 the Glow Worm Ultimate3 25 condensing or non-condensing?

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

Does the Glow Worm Ultimate3 25 system protect the environment?

Environmentally-friendly heating has become an important issue for homeowners concerned about the accelerating pace of climate change.

In the UK, central heating is responsible for 14% of greenhouse gas production. Domestic gas boilers emit large quantities of nitrogen dioxide in British cities.

If you would like your next boiler to help in the fight against climate change, would the Glow Worm Ultimate3 25 system be a suitable choice?

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".

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

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