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Glow Worm Energy 35kW boiler

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Plumbproud rating

74.38%

Glow worm Energy 35kW Combi Gas boiler

Using the PlumbProud boiler quality scoring system, we have rated this model at 74.38%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

This Glow worm Energy 35kW Combi boiler is likely to cost you £2,000 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.

For professional advice on whether the Glow Worm Energy 35kW is the right boiler for your home or to receive a free quotation, please call 01604 343053 to speak to our friendly team. You are also welcome to email us by clicking here or you can enter your postcode into the quotation box on this page.


Installed price around

£2,000

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Glow worm Energy 35kW Combi Gas boiler frequently asked questions

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

The Glow Worm Energy 35kW is a combi boiler you may wish to consider if you want this particular type of boiler for your house or flat.

A combi boiler could be a better choice than a standard boiler if space is at a premium in your home. Combi boilers draw water directly from the mains supply and heat it instantly, removing the need for a hot water cylinder and a cold water tank.

Water is heated on demand and then distributed directly to your taps and showers. This means that combi boilers use less fuel and so reduce your gas bills.

The main disadvantage to combi boilers is that they can only heat a limited volume of water at any given time. If more than one tap or shower is in use, the hot water supply to both could be restricted and both the water pressure and temperature will drop.

Is a Glow Worm Energy 35kW combi boiler appropriate for my house or apartment?

Whether this Glow worm Energy 35kW Combi boiler is right for your property 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 rating indicates how much energy a boiler can use in providing you with hot water and heat when you need it from your radiators and taps. The greater the output, the more water it can heat.

It's better to take advice on this from a registered installer because, if your boiler output is too low, your water and radiators might not get as hot as you would like them to be. However, if the output level is too high, you'll end up paying more on your gas bills than you need to.

Which types of property would this Glow worm Energy 35kW Combi boiler be appropriate for given its output of 35 kW?

An experienced PlumbProud Gas Safe boiler installer would almost certainly recommend that this Glow worm Energy 35kW Combi boiler would be most suitable for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

When choosing a combi boiler like the Glow Worm Energy 35kW, you need to consider the "flow rate" as well as the output rate. Flow rates (measured in litres per minute) indicate the volume of hot water that the boiler can heat up and then distribute to your taps and radiators.

However, combi boilers draw water from the mains and this means they can only heat the amount of water that actually enters your property.

What this means is that, if your mains pressure is 12 litres per minute, that is your boiler's effective flow rate even if it has the capacity to process 18 litres per minute. This Glow worm Energy 35kW Combi boiler's flow rate is 14 L/m.

To give you an idea of the flow rate you might need, a power shower typically requires around 12 litres of water per minute and a basin tap requires 4-8 litres per minute.

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.


The dimensions of the Glow Worm Energy 35kW are

The Glow Worm Energy 35kW has the following dimensions - 700 mm high, 390 mm wide, and 280 mm deep.

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

Condensing boilers like the Glow Worm Energy 35kW improve energy efficiency and reduce your annual expenditure on gas.

They do this by capturing and recycling the warmth still present in water vapour condensation and flue exhaust gases to, for example, increase the temperature of the colder water returning from your radiators.

Condensing boilers are also much better for the environment because they emit fewer greenhouse gases.

How does the Glow Worm Energy 35kW combi rate environmentally?

With more and more of us concerned about environmental issues and climate change, how we heat our homes has become an important issue to many homeowners.

Nitrogen dioxide emissions in Britain's largest cities are at dangerous levels and this has been caused by gas boilers. In fact, 14% of the UK’s greenhouse gases are produced by central heating.

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

The Glow Worm Energy 35kW has been awarded an efficiency rating of 89.2% 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 ERP, short for the Energy Related Products Directive, is a European directive aimed at encouraging manufacturers to create products that are environmentally friendlier at all stages, including during manufacturing, when the product is in active use, right through to the point of final disposal.

The Glow Worm Energy 35kW has a rating of "A" for heat and "A" for hot water production.

What is the warranty period for the Glow Worm Energy 35kW?

The parts and labour warranty on the Glow Worm Energy 35kW covers all repair-related costs for 2 years while the heat exchange warranty covers you for [Heat Exchange Warranty] years.


Glow worm Energy 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.2%
Band ratingB
LPG Compatible?Yes
P/L Warranty2 Years
Output in kW35 kW
Height700 mm
Width390 mm
Depth280 mm
MountingWall
Flow rate14 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
74.38%

According to our PlumbProud boiler quality scoring system, we rate this model 74.38%. We rank boilers using a number of different factors including price installed, manufacturer guarantees, energy efficiency, likely running costs, and more.

We anticipate the supply and installation cost for this model of boiler will be around £2,000 on a standard fit.

To receive a free quote on the Glow Worm Energy 35kW boiler and to receive professional advice and guidance on whether it's the right choice for your home, please enter your postcode in the quote boxes on this page, click here to email us, or call 01604 343053.


Installed price guideline
£2,000

Get your free quote

Glow worm Energy 35kW Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.2%
Band ratingB
LPG Compatible?Yes
P/L Warranty2 Years
Output in kW35 kW
Height700 mm
Width390 mm
Depth280 mm
MountingWall
Flow rate14 L/m
ERP HeatA
ERP WaterA

Glow worm Energy 35kW Combi Gas boiler frequently asked questions

What kind of boiler is the Glow Worm Energy 35kW - standard, combi or system?

If you are searching for a combi boiler for your house or flat, the Glow Worm Energy 35kW is certainly one to consider.

In the past, most boilers needed one or more storage tanks to operate - one to store warm water and the other for storing water to be heated later. But storage tanks are problematic in properties where space is at a premium and particularly where there is no loft. Many properties in the UK are small and so manufacturers introduced combi boilers in the 1970s to eliminate the need for tanks.

With a combi boiler, the hot water for your radiators and taps is delivered on demand. The boiler instantly heats water it draws directly from the mains internally. It then distributes the heated water around your home at mains pressure as you need it.

It is important to bear in mind that, while combi boilers have many benefits, they can only heat a certain volume of water at any given time. This means that, if you run a shower at the same time as someone else is doing the washing up in the kitchen, the volume of water passing to each point will drop, causing a fall in pressure.

Is the Glow Worm Energy 35kW combi boiler a suitable choice for my property?

Selecting the right boiler for your home means choosing 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".

Your boiler’s output is a measurement of the power it has available to it to heat the water you need for your radiators or for when you turn on a tap, bath or shower. A higher output rate means it has more power and can heat more water.

It's important to choose an output that matches the demand for water in your home because if your boiler has too low an output, you'll often find only lukewarm water comes out of your taps or heats your radiators. If it’s too high, you’ll be paying more for your gas than you need to.

The Glow Worm Energy 35kW combi has an output of 35 kW, so which types of property would this Glow worm Energy 35kW Combi boiler be appropriate for?

A Gas Safe boiler installer would recommend that this Glow worm Energy 35kW Combi boiler would be a suitable choice for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

Please remember to consider "flow rates" as well when choosing your new boiler. All combi boilers including the Glow Worm Energy 35kW draw water from the mains.

Each combi boiler has its own flow rate (measured in litres per minute) - this tells you how much water it can heat and distribute to your home’s taps and radiators straight from the mains. This Glow worm Energy 35kW Combi boiler's flow rate is 14 L/m.

There is no benefit to you in choosing a combi with a high flow rate if your mains pressure is low - save money by buying a boiler whose flow rate is equal to or slightly more than the pressure in your water pipes.

In addition, if you have a lot of radiators and bathrooms in your home or you have a large household that often uses lots of hot water at the same time, like for regular morning and evening showers, a combi boiler may not be suitable.

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 dimensions of the Glow Worm Energy 35kW are 700 mm [H] x 390 mm [W] x 280 mm [D].

Glow Worm Energy 35kW – condensing or non-condensing?

The Glow Worm Energy 35kW is a condensing gas boiler - this is the type of boiler we recommend to most clients because they're better for the environment and they will save money on annual fuel bills.

A condensing boiler captures and recycles the warmth still present in both the flue exhaust gases and water vapour condensation created when gas is burned to provide your boiler with power.

This means it needs less gas to operate and it uses this extra energy to perform a number of tasks, including heating the colder water that comes back to the boiler from the radiators in your home.

Is the Glow Worm Energy 35kW combi boiler rated as environmentally friendly?

How we heat our homes is an issue which many homeowners worry about as the world combats climate change and environmental damage.

14% of the total amount of greenhouse gases produced by the UK comes from the central heating systems we use. In some of Britain's biggest cities, gas boilers create dangerous levels of nitrogen dioxide in the atmosphere.

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

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 Energy 35kW was given an efficiency rating of 89.2% and a band rating of "B".

The ERP (or Energy Related Products Directive) is a European regulation governing products which require energy to operate throughout their lives and encourages manufacturers to create products that are more environmentally friendly.

The legislation is designed to reduce the potential for harmful gas emissions during manufacturing and actual use right through to the point of final disposal.

For the Glow Worm Energy 35kW, the ERP rating is "A" for heat and "A" for hot water production.

What is the warranty period on a Glow Worm Energy 35kW combi boiler?

The Glow Worm Energy 35kW boiler has a warranty covering parts and labour costs for up to 2 years after installation.


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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