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Glow Worm Energy 12kW boiler

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Plumbproud rating

77.34%

Glow worm Energy 12kW heat only Gas boiler

Using factors such as price installed, manufacturer guarantees, energy efficiency and the likely cost of running, among others, this model has been rated as scoring 77.34% on the PlumbProud boiler benchmarking system.

£1,800 is the amount you should budget to have this particular boiler installed on a straightforward installation.

If you would like to get in touch with us for a free quote and professional guidance and advice on whether the Glow Worm Energy 12kW is the right choice for your home, you can do so by entering your postcode in the quote boxes on this page, calling us on 01604 343053 or you can click here to email us.


Installed price around

£1,800

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Glow worm Energy 12kW heat only Gas boiler frequently asked questions

What kind of boiler is the Glow Worm Energy 12kW - standard, combi or system?

You might want to consider the Glow Worm Energy 12kW for your house or flat if you are looking for a heat only boiler.

Heat only boilers (sometimes called conventional boilers, standard boilers or regular boilers) need both a hot water cylinder with an immersion heater and a cold-water tank to work. The cold water tank (normally found in an attic or a loft) passes water when required to the hot water cylinder (normally found in a landing or airing cupboard), which heats the water and keeps it warm.

When you set the times you want for your hot water and central heating, the hot water for your taps, showers, baths and radiators is drawn from the hot water cylinder. Bear in mind though that, if you forget to program the system and the hot water cylinder is empty, you may have to wait up to an hour for your hot water.

A heat only boiler is usually the recommended option for families or properties with multiple bathrooms. This is because, unlike combi boilers which can only effectively provide for one outlet at a time without a drop in water pressure, volume or temperature, standard boilers can handle demand from multiple points around the home at once.

Is a Glow Worm Energy 12kW heat only boiler appropriate for my house or apartment?

It's best to choose a boiler whose size or "output" is right for your property. With boilers, however, size does not mean how big a boiler is, it means how much power it has.

A boiler’s output indicates the amount of power it can use when heating the water which it then sends to your taps and radiators. The higher the output rate, the more water it can heat.

If a boiler’s output is too low, there will be times when your hot water might not be as hot as you want it to be. If it is too high, you’ll likely be paying more than you need to for your gas.

Measured in kilowatts, the Glow Worm Energy 12kW heat only's output level is 12 kW, so which types of property would this Glow worm Energy 12kW heat only boiler be an appropriate choice for?

Most Gas Safe engineers would suggest that the most suitable type of property for installing a Glow Worm Energy 12kW heat only boiler would be smaller homes and apartments with up to 10 radiators and one bathroom.


Where will the Glow Worm Energy 12kW fit in my house?

The measurements of the Glow Worm Energy 12kW are 700 mm by 375 mm by 280 mm.

Is the Glow Worm Energy 12kW a non-condensing or condensing boiler?

We recommend that, if possible, you select one of the very latest condensing gas boilers on the market like the Glow Worm Energy 12kW.

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 Glow Worm Energy 12kW heat only boiler rated as environmentally friendly?

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

Central heating accounts for 14% of greenhouse gas emissions in the UK. In larger British cities, gas boilers emit dangerous levels of nitrogen dioxide into the atmosphere.

Would choosing the Glow Worm Energy 12kW heat only be an environmentally-friendly choice? If so, let's look at its performance figures.

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 Energy 12kW was awarded an efficiency rating of 89.3% 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.

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, and right through to the point of final disposal.

The Glow Worm Energy 12kW has a rating of "A" .

How long is the warranty offered by the manufacturer for the Glow Worm Energy 12kW boiler?

The Glow Worm Energy 12kW is supplied with a parts and labour warranty of 2 years.


Glow worm Energy 12kW Gas heat only boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.3%
Band ratingB
LPG Compatible?No
P/L Warranty2 Years
Output in kW12 kW
Height700 mm
Width375 mm
Depth280 mm
MountingWall
ERP HeatA

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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Glow Worm Energy 12kW boiler

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Glow worm Energy 12kW heat only Gas boiler

  1. Home
  2. Glow worm Energy 12kW
Plumbproud rating for this boiler
77.34%

Using the PlumbProud boiler quality scoring system, we have rated this model at 77.34%. To determine the rating, we factor in the price installed, energy efficiency, running costs, the warranty offered, and more.

Fitted by an experienced Gas Safe PlumbProud engineer, the cost for this Glow worm Energy 12kW heat only boiler will be in the region of £1,800 on a standard, non-complicated installation.

Get a free, no-obligation Glow Worm Energy 12kW boiler quote today by simply entering your postcode in the box on this page. You can also speak to a boiler installation expert about heating for your home by getting in touch via email or by phone on 01604 343053.


Installed price guideline
£1,800

Get your free quote

Glow worm Energy 12kW Gas heat only boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.3%
Band ratingB
LPG Compatible?No
P/L Warranty2 Years
Output in kW12 kW
Height700 mm
Width375 mm
Depth280 mm
MountingWall
ERP HeatA

Glow worm Energy 12kW heat only Gas boiler frequently asked questions

Is the Glow Worm Energy 12kW a combi, system or regular boiler?

Glow Worm’s Energy 12kW is one you might consider if you’re looking for a heat only boiler for your house or flat.

You may hear a heat only boiler being referred to as a conventional boiler, a standard boiler or a regular boiler, but they're all the same. Heat only boilers require both an immersion and a cold-water tank to function, the latter usually being situated in the loft. Water is kept warm throughout the day by the immersion cylinder for use when needed.

With a heat only boiler, you program the times at which you want to have hot water and central heating, but if you forget and there's no hot water left, you’ll have to wait for it to heat up before you have your bath or shower.

If you have a home with more than one bathroom, or a larger family, a heat only boiler will probably suit your needs. This is because, if you opted for a combi boiler instead, the water pressure, volume and temperature drop when more than one point is in use - for example if you have a shower while running hot water in the kitchen or another bathroom.

Is a Glow Worm Energy 12kW heat only boiler suitable for my house or apartment?

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

Your boiler's output indicates the maximum amount of power available to it to heat the water you need to warm your radiators or when you want hot water from your taps. A higher output rate means that your boiler is capable of heating greater volumes of water.

If a boiler's output rate is too low, you'll often find that the water is not as hot as you want it to be. Too high, however, and you'll end up paying more for your gas than you should be.

The Glow Worm Energy 12kW heat only boiler has an output rate of 12 kW, so which types of property would this be suitable for?

An experienced boiler engineer would recommend that this Glow worm Energy 12kW heat only boiler would be a suitable installation choice for smaller homes and apartments with up to 10 radiators and one bathroom.


The size of the Glow Worm Energy 12kW

The Glow Worm Energy 12kW boiler is 700 mm high, 375 mm wide, and 280 mm deep.

Is this Glow Worm boiler non-condensing or condensing?

We always recommend to clients that they select the very latest condensing boiler for their home.

Condensing boilers like the Glow Worm Energy 12kW are more efficient with the gas they use in operation, meaning that you'll benefit from lower fuel bills. Condensing boilers are also better for the environment.

They achieve their efficiency by capturing and recycling the heat still present in the water vapour condensation and flue exhaust gases created when a boiler burns gas to get the energy it needs. It then reuses that recycled heat to perform a number of tasks, including heating the colder water that comes back to your boiler via the radiator.

Is the Glow Worm Energy 12kW heat only boiler an environmentally friendly choice?

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

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

Do the figures suggest that installing the Glow Worm Energy 12kW heat only at your property would help in the fight against climate change?

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 12kW was given an efficiency rating of 89.3% and a band rating of "B".

The ERP (Energy Related Products Directive) applies to all products that consume energy at any time in their lifetime, from manufacture to disposal and all points in between.

The intention of this European legislation is to encourage manufacturers to offer end users products that are better for the environment through the creation of fewer harmful gas emissions at all points of a product's life cycle.

The ERP rating for the Glow Worm Energy 12kW is "A".

If the Glow Worm Energy 12kW breaks down, will I be covered by the warranty?

The Glow Worm Energy 12kW is covered by a parts and labour warranty of 2 years following installation.


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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