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Glow Worm Ultimate3 25 boiler

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Plumbproud rating

79.98%

Glow worm Ultimate3 25 heat only Gas boiler

On the PlumbProud quality scoring system, we rate this Glow worm Ultimate3 25 heat only boiler at 79.98%. To determine a boiler's quality, we consider many different factors from price installed to manufacturer guarantees, energy efficiency, likely cost of running, and more.

This Glow worm Ultimate3 25 heat only boiler is likely to cost you £1,800 supplied and fully installed through PlumbProud, although there may be additional charges if the fit takes longer than anticipated. You will, however, receive a binding quote from us prior to starting work.

To contact us, please enter your postcode in the quote boxes on this page, click here to email us, or give us a call on 01604 343053. We can provide you with a free quote on the Glow Worm Ultimate3 25 boiler and offer professional advice and guidance on whether this Glow worm Ultimate3 25 heat only boiler is the right choice for your home.


Installed price around

£1,800

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Glow worm Ultimate3 25 heat only Gas boiler frequently asked questions

What kind of boiler is the Glow Worm Ultimate3 25 - standard, combi or system?

The Glow Worm Ultimate3 25 may be worth considering if you are looking for a heat only boiler for your house or flat.

Heat only boilers are sometimes called standard boilers, regular boilers or conventional boilers but they are actually the same thing. For a heat only boiler, you'll need to find space for both a cold-water tank and an immersion hot water cylinder - most households choose the attic for the former and a landing cupboard or airing cupboard for the latter. The immersion cylinder is the part of the system that keeps your hot water warm.

You program your boiler to provide you with the hot water you want at certain times, such as when you want to have a bath or a shower. However, if you don't remember to program your boiler, you'll have to wait for it to heat up if the hot water has run out.

A regular boiler is the most suitable choice if you have a larger family or if there is more than one bathroom in your home - the more popular combi boilers do not work well in homes where there is high and often simultaneous demand for hot water.

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

Whether this Glow worm Ultimate3 25 heat only boiler is right for where you live depends on its size or what its "output" level is. Size does not mean its physical dimensions, however - it means how powerful it is.

The output of a boiler is measured in kilowatts and indicates how much energy it can use to heat the water needed for your radiators, taps and showers. The greater the output, the more water it can heat.

A boiler whose output is too high will give you hot water and warm radiators but also higher gas bills, whereas a boiler whose output is too low will result in cheaper gas bills but the water might not always be as hot as you want it to be.

The output of the Glow Worm Ultimate3 25 heat only is 25 kW, so which types of property would this model be appropriate for?

An experienced PlumbProud Gas Safe boiler installer would recommend that this Glow worm Ultimate3 25 heat only boiler is appropriate for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Glow Worm Ultimate3 25 - size in millimetres

The Glow Worm Ultimate3 25 boiler measures TBC mm [H] x TBC mm [W] x TBC mm [D] in size.

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

The Glow Worm Ultimate3 25 is a condensing boiler – we recommend to all clients that they choose the very latest condensing boilers because their efficiency continues to improve year after year.

Condensing boilers recycle heat from both water vapour condensation and flue exhaust gases via a secondary heat exchanger. With this heat, it performs other tasks like warming up colder water returning from your radiator without having to use more gas.

You will save money on your gas bills every year by choosing a condensing boiler as well as benefitting the environment.

Is the Glow Worm Ultimate3 25 heat only rated as environmentally friendly?

More and more homeowners are aware of the importance of how we heat our homes and its impact on climate change and other environmental issues.

We generate 14% of UK greenhouse gas emissions through centrally heating our domestic properties. Gas boilers are mainly responsible for harmful nitrogen dioxide emissions in larger British cities.

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

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 Ultimate3 25 was rated at 89.6% with a SEDBUK grading of "B".

How many years does the warranty period cover on a 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 heat only boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.6%
Band ratingB
LPG Compatible?No
P/L Warranty5 Years
Output in kW25 kW
MountingWall

The top 10 rated Gas heat only boilers

Using the Plumbproud scoring system, the current 10 ten Gas heat only boilers assessed using a number of important variables are as follows:

1Vaillant ecoTEC Plus 41596.51%
2Vaillant ecoTEC Plus 41895.45%
3Vaillant ecoFIT Pure 41294.82%
4Vaillant ecoTEC Plus 42494.77%
5Vaillant ecoFIT Pure 41594.23%
6Vaillant ecoTEC Plus 43094.23%
7Worcester Bosch Greenstar Ri 12Ri94.18%
8Worcester Bosch Greenstar Ri 15Ri93.93%
9Worcester Bosch Greenstar Ri 18Ri93.26%
10Vaillant ecoFIT Pure 41893.11%

Combi boilers

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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 heat only Gas boiler

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

Our PlumbProud quality scoring system considers important factors like energy efficiency, the length of a manufacturer’s guarantee, likely running costs, and installed price to determine a boiler's value for money. This model has received 79.98% from our engineers.

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

For a free, no-obligation quotation on this Glow worm Ultimate3 25 heat only boiler or for our professional advice on whether the Glow Worm Ultimate3 25 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 guideline
£1,800

Get your free quote

Glow worm Ultimate3 25 Gas heat only boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.6%
Band ratingB
LPG Compatible?No
P/L Warranty5 Years
Output in kW25 kW
MountingWall

Glow worm Ultimate3 25 heat only Gas boiler frequently asked questions

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

If you’re looking for a heat only boiler for your house or flat, you may wish to the consider the Glow Worm Ultimate3 25.

You may hear a heat only boiler described as a standard boiler, a regular boiler, or a conventional boiler but the terms mean the same. Heat only boilers require a hot water cylinder (usually stored in a landing or airing cupboard) and a cold water storage tank (usually stored in the loft) to operate. Your water is kept warm by the hot water cylinder throughout the day.

A heat only boiler lets you schedule the hot water and central heating you want for set times of the day. However, you'll have to wait before having a bath or shower if you forget to set it and there's no hot water left in the tank.

If you have a bigger family or more than one bathroom, a heat only boiler is a better option than a combi boiler in many cases. This is because a combi boiler struggles to maintain water volume, pressure and temperature to multiple points in a home simultaneously.

Is the Glow Worm Ultimate3 25 heat only boiler suitable for my house or apartment?

You should make sure that the boiler you install in your property is the right "size". And size doesn't mean its physical dimensions, size means how much power it has - the "output".

Your boiler should be able to cope with peak hot water demand in your property and not just your average hot water usage. The output rate of a boiler is measured in kilowatts and tells you how much power a boiler can use to provide hot water to your taps, showers and radiators.

If the output of your boiler is too low, there will often be times when your water isn't as hot as you want. But if your boiler output is too high, it will be more costly to run (often unnecessarily).

The output of the Glow Worm Ultimate3 25 heat only boiler is 25 kW kilowatts. Which types of property would this be appropriate for?

Most experienced boiler engineers would recommend that this Glow worm Ultimate3 25 heat only boiler would be suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.


Dimensions of the Glow Worm Ultimate3 25 boiler

The Glow Worm Ultimate3 25 occupies a space of TBC mm high by TBC mm wide and TBC mm deep.

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

Because of their increased energy efficiency, we recommend to all customers that they select one of the latest condensing boilers. Condensing boilers capture the heat from water vapour condensation and flue exhaust gases and recycle that heat to warm water entering the boiler (for example, from your radiators).

The Glow Worm Ultimate3 25 is a condensing gas boiler and choosing this model will result in a likely substantial reduction in your fuel bills, particularly if you're replacing an older, inefficient, non-condensing boiler.

Is the Glow Worm Ultimate3 25 heat only rated as environmentally friendly?

How we heat our homes and the effect that has on climate change has become important to many homeowners worried about the environment.

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

Every boiler manufactured and supplied in the UK must have an energy efficiency rating of 92% (SEDBUK “A” rating). These minimums were made law in April 2018 - before that, the minimum energy efficiency rating was 88% (88%/89% = "B" SEDBUK grade, 90%+ = "A" SEDBUK grade).

The Glow Worm Ultimate3 25 was awarded an efficiency rating of 89.6% and a band rating of "B".

Energy efficiency ratings for boilers describe the amount of energy they use and waste when switched on and working.

Am I covered if my Glow Worm Ultimate3 25 heat only boiler breaks down?

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


The top 10 rated Gas heat only boilers

Using the Plumbproud scoring system, the current 10 ten Gas heat only boilers assessed using a number of important variables are as follows:

1Vaillant ecoTEC Plus 41596.51%
2Vaillant ecoTEC Plus 41895.45%
3Vaillant ecoFIT Pure 41294.82%
4Vaillant ecoTEC Plus 42494.77%
5Vaillant ecoFIT Pure 41594.23%
6Vaillant ecoTEC Plus 43094.23%
7Worcester Bosch Greenstar Ri 12Ri94.18%
8Worcester Bosch Greenstar Ri 15Ri93.93%
9Worcester Bosch Greenstar Ri 18Ri93.26%
10Vaillant ecoFIT Pure 41893.11%
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