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Glow Worm Energy 35kW boiler

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Plumbproud rating

73.50%

Glow worm Energy 35kW Combi Gas boiler

On the PlumbProud boiler quality benchmark scoring system, we have rated this Glow worm Energy 35kW Combi boiler at 73.50%. Ratings are determined by considering a number of important factors including the energy efficiency, price installed, warranty length, and running costs of the boiler.

We would anticipate that this Glow worm Energy 35kW Combi boiler would cost you £2,700 fully installed through PlumbProud provided that the fitting is standard and with no complications.

To get a free quote for the installation of the Glow Worm Energy 35kW boiler in your home, simply enter your postcode in the box provided on this page. You can also find out whether this is the right boiler for your home by clicking to email our installation team or by calling us on 01604 343053.


Installed price around

£2,700

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Glow worm Energy 35kW Combi Gas boiler frequently asked questions

Is the Glow Worm Energy 35kW a combi boiler, system boiler or regular boiler?

If you’re looking for a combi boiler for your house or flat, then the Glow Worm Energy 35kW is one you may wish to consider.

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 the Glow Worm Energy 35kW combi boiler suitable for my house or apartment?

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 Energy 35kW combi's output at 35 kW, which types of property would this Glow worm Energy 35kW Combi boiler be most appropriate for?

To most experienced Gas Safe boiler installers, the Glow Worm Energy 35kW combi Energy would be most suitable for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

You need to consider the flow rate as well as the output rate when choosing a combi boiler.

Flow rates, measured in litres per minute, indicate how much water your boiler can heat and distribute around your home at any given time. If your family regularly use hot water around the house at the same time and you have a lot of radiators, you should choose a boiler with a high flow rate. This Glow worm Energy 35kW Combi boiler's flow rate is 19 L/m.

However, you also need to consider the flow rate of your local mains water supply. Combis can only draw water from the mains as fast as the pipes can deliver it. If you choose a boiler with a 14l/m flow rate and the mains pipes into your home have a flow rate of 12l/m, your boiler won't be able to operate at full capacity. In other words, try to make sure the local water pressure and your boiler flow rates are as close as possible.

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 size is the Glow Worm Energy 35kW boiler?

The Glow Worm Energy 35kW boiler is 890 mm high, 470 mm wide, and 561 mm deep.

Is the Glow Worm Energy 35kW condensing or non-condensing?

We strongly recommend that you choose a condensing boiler like the Glow Worm Energy 35kW - 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.

Is the Glow Worm Energy 35kW combi an energy-efficient boiler?

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

Central heating produces 14% of all greenhouse gas emissions in the UK. Gas boilers in the larger cities emit dangerous levels of nitrogen dioxide.

Would choosing a Glow Worm Energy 35kW combi help the environment? Let’s see what the performance figures suggest.

Boilers manufactured in the UK must be tested and, by law, achieve an energy efficiency rating of 92% or above, equivalent to a SEDBUK "A" grade. Most boilers achieve an "A" rating meaning they are at least 88% efficient.

The energy efficiency of a boiler indicates the amount of energy it uses (and wastes) during operation.

The Glow Worm Energy 35kW has been assigned an efficiency rating of 89.4% with a SEDBUK 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 through to final disposal, with the aim of reducing harmful gas emissions.

The Glow Worm Energy 35kW is rated "A" for heat and "A" for water.

Am I covered if the Glow Worm Energy 35kW combi boiler breaks down?

The parts and labour warranty offered with this Glow worm Energy 35kW Combi boiler covers you for 5 years.


Glow worm Energy 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.4%
Band ratingB
LPG Compatible?Yes
P/L Warranty5 Years
Output in kW35 kW
Height890 mm
Width470 mm
Depth561 mm
MountingWall
Flow rate19 L/m
ERP HeatA
ERP WaterA

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 Energy 35kW boiler

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Glow worm Energy 35kW Combi Gas boiler

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  2. Glow worm Energy 35kW
Plumbproud rating for this boiler
73.50%

We score each boiler we sell by considering a number of different factors including price installed, manufacturer guarantees, energy efficiency, the likely cost of running, and more. For this Glow worm Energy 35kW Combi boiler, we have awarded a rating of 73.50%.

This Glow worm Energy 35kW Combi boiler will cost approximately £2,700 supplied and fully installed through PlumbProud assuming that there are no unexpected complications during the fitting.

For a free, no-obligation quotation on this Glow worm Energy 35kW Combi boiler or for our professional advice on whether the Glow Worm Energy 35kW 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
£2,700

Get your free quote

Glow worm Energy 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.4%
Band ratingB
LPG Compatible?Yes
P/L Warranty5 Years
Output in kW35 kW
Height890 mm
Width470 mm
Depth561 mm
MountingWall
Flow rate19 L/m
ERP HeatA
ERP WaterA

Glow worm Energy 35kW Combi Gas boiler frequently asked questions

What type of boiler is the Glow Worm Energy 35kW?

You may wish to consider installing the Glow Worm Energy 35kW if you are looking for a combi boiler for your house or flat.

Combination or combi boilers are highly efficient and save a lot of space in your home. Combi boilers heat water directly from the mains when you turn on a tap and, as a result, you don’t need a hot water storage cylinder or a cold water tank in the roof space.

These boilers are, therefore, suitable for smaller homes and especially those without a loft. They are also cost-effective as the water is heated instantly and distributed on demand rather than being stored. Combi boilers are the most popular type of boilers in the UK and replacing an older boiler with a new combi boiler will reduce your gas bills significantly.

However, there are downsides to this type of boiler. If you take a shower while someone else is using a tap, less water will reach each point of usage at lower rates of pressure and temperatures as combi boilers can only heat a certain volume of water at any given time.

Is the Glow Worm Energy 35kW combi 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 Energy 35kW combi is 35 kW, so which types of property would this Glow worm Energy 35kW Combi boiler be appropriate for?

Most Gas Safe boiler installers would suggest that the most suitable type of property for installing this Glow worm Energy 35kW Combi boiler in would be larger properties including detached homes with 15 or more radiators and two or more bathrooms.

In addition to the output rate, you should consider a boiler's "flow rate" (measured in litres per minute) when choosing a combi boiler.

If you have a lot of radiators and bathrooms in your home and members of your household want to use hot water at the same time (like morning or evening showers and baths), you'll need a boiler with a high flow rate. This Glow worm Energy 35kW Combi boiler's flow rate is 19 L/m.

However, it's not that simple. Combis can only draw water from the mains at the speed it's delivered. Homes with higher than average demand for hot water, and particularly those in low mains pressure areas, may find that a combi boiler is not the right answer for them.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead to better serve you and your family.


What are the dimensions of the Glow Worm Energy 35kW boiler?

The dimensions of the Glow Worm Energy 35kW are 890 mm tall, 470 mm wide, and 561 mm deep.

Is the Glow Worm Energy 35kW a condensing or non-condensing boiler?

The Glow Worm Energy 35kW boiler is a condensing gas boiler and we recommend that you select one of the latest models if possible.

Condensing boilers reduce homeowners' gas bills and are better for the environment. They do this by capturing and recycling the heat still present in the flue exhaust gases and water vapour condensation produced when boilers burn gas to generate the power they need to operate.

How energy efficient is the Glow Worm Energy 35kW combi boiler?

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

Central heating creates 14% of the UK’s greenhouse gases. And in Britain's larger cities, gas boilers are responsible for dangerous levels of nitrogen dioxide emissions.

Would the environmental impact of installing a Glow Worm Energy 35kW combi in your home be positive? Let's look at the numbers.

The Glow Worm Energy 35kW has been awarded an efficiency rating of 89.4% and a SEDBUK band rating of "B".

In the UK, all boilers manufactured and supplied must have an energy efficiency rating of at least 92% or a SEDBUK "A" grade. Until April 2018, the minimum rating was 88% (88% and 89% are equivalent to a SEDBUK "B" rating and anything higher is rated "A").

A boiler's energy efficiency rating describes the amount of energy it uses and wastes when in normal operation.

The Energy Related Products Directive (ERP) is European legislation that applies to all products which use or consume energy during their lifespan, including during the manufacturing process and when they're in actual use, right through to the point of final disposal.

The aim is to encourage manufacturers to create new products that are kinder to the environment and create fewer harmful gas emissions.

The Glow Worm Energy 35kW has an ERP Heat rating of "A" and an ERP Water rating of "A".

How long am I covered by the warranty for if the Glow Worm Energy 35kW breaks down?

Glow Worm’s Energy 35kW boiler includes a parts and labour warranty of 5 years.


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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