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Glow Worm Essential 28 boiler

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Plumbproud rating

73.29%

Glow worm Essential 28 Combi Gas boiler

On the PlumbProud quality scoring system, we rate this Glow worm Essential 28 Combi boiler 73.29%. To determine our rating, we take lots of different factors into consideration from price installed to manufacturer guarantees, energy efficiency, likely cost of running, and more.

On most non-complicated installations, we would expect this Glow worm Essential 28 Combi boiler to cost £2,300 including installation if you choose PlumbProud to do the 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 Essential 28 boiler and offer professional advice and guidance on whether this Glow worm Essential 28 Combi boiler is the right choice for your home.


Installed price around

£2,300

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Glow worm Essential 28 Combi Gas boiler frequently asked questions

Glow Worm Essential 28 - a system boiler, regular boiler or combi boiler?

You may wish to consider installing the Glow Worm Essential 28 if you are looking for a combi boiler for your house or flat.

Traditionally, boilers needed one or more large tanks installed in your property to store their heated water or water that was to be heated later. These tanks were often too large to be practical for most homes so the combi boiler was introduced to Britain in the 1970s by manufacturers to help homeowners overcome this issue.

Instead of using tanks as storage, a combi boiler heats water on demand. It draws water from the mains and heats it instantly on demand before distributing it to wherever it is needed in a property, be it your taps or radiators.

Unfortunately, combi boilers have one main disadvantage for larger properties or larger households. Because they have a maximum volume of water that can be heated on demand at any given time, water pressure, volume and temperature will drop if, for example, someone is taking a shower and another person in your home wants to use a hot water tap at the same time.

Is a Glow Worm Essential 28 combi a suitable choice for my house or flat?

You should make sure that the boiler you install in your property is the right "size". And, by size, we don't mean how big it is, we mean how powerful it is - the "output".

Your boiler has to be powerful enough to heat all the hot water you need for your radiators and taps. Power is measured in kilowatts and the more kilowatts a boiler has available to it, the more water it can heat.

If the output (measured in kilowatts) is too high, you'll have all the power you need and more but your gas bills will be much higher. If it's too low, you'll often find that the water coming out of your taps and fed into your radiators is only lukewarm.

With the Glow Worm Essential 28 combi's output at 28 kW, which types of property would this Glow worm Essential 28 Combi boiler be most appropriate for?

To most boiler engineers, the Glow Worm Essential 28 combi Essential would be most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

As well as the output rate, you need to consider "flow rate" when choosing a combi boiler.

The flow rate describes how much water a combi boiler can draw from the mains, instantly heat, and then send to your radiators. Flow rates are measured in litres per second and this Glow worm Essential 28 Combi boiler's flow rate is 12 L/m.

The water in your mains pipe also has its own flow rate - normally between 10 and 12l/m in most parts of Britain. This means that, if you choose a combi boiler with a flow rate of 17l/m where local water pressure is 11lm, it won't actually process more water because of the slower flow rate of the mains.

In addition, larger households with more than one bathroom, multiple radiators, and where family members may want to use hot water at the same time (like morning showers) may actually need a boiler with a higher flow rate than either the boiler or the local mains pipe.

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.


What are the proportions of a Glow Worm Essential 28 boiler?

The Glow Worm Essential 28 is TBC mm [H] by TBC mm [W] by TBC mm [D] in size.

Is the Glow Worm Essential 28 non-condensing or condensing?

The Glow Worm Essential 28 is a condensing gas boiler - we strongly suggest that you choose either this model or a recently released model if at all possible.

A condensing boiler captures and recycles the warmth present in flue exhaust gases and water vapour condensation created by the burning of gas to warm up the water coming back into your boiler - for example, from your radiators.

Condensing boilers cost less to run (lower gas bills) and are better for the environment.

Is the Glow Worm Essential 28 combi considered environmentally friendly?

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.

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.

Would choosing the Glow Worm Essential 28 combi help the environment? Let's see what the statistics suggest.

All boilers manufactured in the UK from April 2018 must operate at a minimum level of energy efficiency of 92% ("A" rating on the SEDBUK scale). Before that, the minimum was 88% - boilers scoring 88/89% were given a SEDBUK "B" rating and 90% or above an "A" rating.

The energy efficiency score of a boiler indicates how much energy it uses and how much goes to waste when in use.

After its assessment, the Glow Worm Essential 28 was given an efficiency rating of 89.3% and a SEDBUK grading of "B".

What is the length of the warranty on the Glow Worm Essential 28?

The Glow Worm Essential 28 boiler is covered by a parts and labour warranty of 3 years.


Glow worm Essential 28 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.3%
Band ratingB
LPG Compatible?No
P/L Warranty3 Years
Output in kW28 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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Glow Worm Essential 28 boiler

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Glow worm Essential 28 Combi Gas boiler

  1. Home
  2. Glow worm Essential 28
Plumbproud rating for this boiler
73.29%

Our PlumbProud quality scoring system uses many different factors, such as price installed, manufacturer guarantees, energy efficiency and the likely cost of running, among others, to determine a boiler's value for money rating. This Glow worm Essential 28 Combi boiler scores 73.29%.

Expect this Glow worm Essential 28 Combi boiler to cost you £2,300 fully installed where there are no complications on the fit if you choose PlumbProud for this installation.

To receive a free quote on the Glow Worm Essential 28 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
£2,300

Get your free quote

Glow worm Essential 28 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.3%
Band ratingB
LPG Compatible?No
P/L Warranty3 Years
Output in kW28 kW
MountingWall
Flow rate12 L/m

Glow worm Essential 28 Combi Gas boiler frequently asked questions

What kind of boiler is the Glow Worm Essential 28 - standard, combi or system?

Glow Worm’s Essential 28 is one you might consider if you’re looking for a combi boiler for your house or flat.

Traditional boilers often have up to two tanks that either store heated water or water to be heated later. Boiler manufacturers introduced combi boilers in the 1970s to avoid the need for those big tanks. Combi boilers allow homeowners to benefit from the reliable central heating and hot water level they want but without having to give up so much space within their properties - remember that homes in the UK are among the smallest in the developed world.

Your taps and radiators get the hot water they need with a combi boiler. Combi boilers draw cold water direct from the mains which is then heated instantly on demand and distributed to your radiators and taps.

However, combi boilers cannot heat very large volumes of water, which is their main disadvantage. So, for example, when someone wants to take a shower while another person wants to use a hot water tap to do the dishes, water pressure and quantity to both points decreases.

Is the Glow Worm Essential 28 combi boiler a suitable choice for my property?

Selecting the right boiler for your property means selecting a boiler that is the right size. And, by size, we don't mean how big it is, we mean how powerful it is - the "output".

The output of a boiler is measured in kilowatts. The output level determines the maximum power a boiler can use in heating the water needed for the baths, showers, taps and radiators in your home.

It's important to choose a boiler with an appropriate level of output for your property. Your boiler should be able to cope with periods of peak demand in your property and not just your average usage.

An output rate that is too low will result in an inadequate supply of hot water, while an output that is too high will mean the boiler will cost more to run than is necessary.

The output of the Glow Worm Essential 28 combi is 28 kW kilowatts, so which types of property would this be appropriate for?

To most boiler engineers, the Glow Worm Essential 28 combi Essential would be most suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

With combi boilers like the Glow Worm Essential 28, you need to take the flow rate into account as well as the output rate.

Combi boilers draw water from the mains and then instantly heat that water and send it to wherever in your home it's needed. Flow rates, measured in litres per minute, are subject to the mains water pressure in your area. So, for example, if the local mains water pressure is 11 litres per minute and the flow rate of your boiler is 14 litres per minute, the boiler will not be able to process more than 11 litres per minute. The flow rate of this Glow worm Essential 28 Combi boiler is 12 L/m.

If you live in a home with lots of radiators or bathrooms where many people want to use hot water at the same time, a combi boiler may not be able to cope. For reference, a power shower uses about 10 litres of water per minute. If two people want showers at the same time or one person wants a shower and the other hot water from a tap in the kitchen, your boiler may not have a large enough flow rate even if the local mains water pressure is high.

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.


What are the proportions of a Glow Worm Essential 28 boiler?

The Glow Worm Essential 28 boiler measures TBC mm [H] x TBC mm [W] x TBC mm [D] in size.

Glow Worm Essential 28 – condensing or non-condensing?

Condensing boilers convert the warmth present in flue exhaust gases and water vapour condensation into heat which they then recycle to increase the temperature of the colder water returning to your system.

We recommend that homeowners choose a condensing boiler like the Glow Worm Essential 28 for this reason - the more recent your model the better because the technology improves every year.

You'll benefit from lower quarterly gas bills and condensing boilers are also much more environmentally friendly.

Is choosing the Glow Worm Essential 28 combi boiler environmentally friendly?

How we heat our homes has become a major issue for many people worried about climate change and environmental issues in general.

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

Would installing a Glow Worm Essential 28 combi boiler in your home be a green choice? Let's look at the numbers.

All boilers manufactured and supplied in the UK are assigned two energy efficiency ratings. By law, they must achieve a SEDBUK "A" rating subject to a minimum efficiency level of 92%. Prior to that, the minimum was 88% (88% and 89% are equivalent to a SEDBUK "B" grade and 90% and above an "A" grade).

The ratings awarded to the Glow Worm Essential 28 are 89.3% with a SEDBUK rating of "B".

Is this Glow Worm Essential 28 combi covered by a warranty?

The Glow Worm Essential 28 boiler comes with a 3 year warranty for parts and labour.


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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