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Glow Worm Ultimate3 35 boiler

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Plumbproud rating

84.25%

Glow worm Ultimate3 35 Combi Gas boiler

On the PlumbProud boiler quality benchmark scoring system, we have rated this Glow worm Ultimate3 35 Combi boiler at 84.25%. Ratings are determined by considering a number of important factors including the energy efficiency, price installed, warranty length, and running costs of the boiler.

Fitted by an experienced Gas Safe PlumbProud engineer, the cost for this Glow worm Ultimate3 35 Combi boiler will be in the region of £1,800 on a standard, non-complicated installation.

For a free, no-obligation quotation on this Glow worm Ultimate3 35 Combi boiler or for our professional advice on whether the Glow Worm Ultimate3 35 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 around

£1,800

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Glow worm Ultimate3 35 Combi Gas boiler frequently asked questions

Is the Glow Worm Ultimate3 35 boiler a combi, regular or a system boiler?

If you’re looking for a combi boiler for your house or flat, then the Glow Worm Ultimate3 35 is one you may wish to consider.

The UK has some of the smallest homes in the Western world, which is partly why combi boilers were introduced in the 1970s. Traditional boilers require one or more large storage tanks which they use to either heat water and keep it warm or store water intended for heating later. These tanks took up a lot of space in people's homes.

Combi boilers save space because they don't require these tanks to operate. Instead, combis draw water direct from your mains supply then instantly heat and distribute it on demand.

The biggest disadvantage in using combi boilers is that they have a maximum capacity volume for heating water. While this may not be an issue in a small household, it could be for a larger household where there is higher demand for hot water. When more than one person is using the water, it is distributed between the two points, reducing the pressure and temperature at each point.

Is a Glow Worm Ultimate3 35 combi boiler suitable 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 Ultimate3 35 combi is 35 kW, so which types of property would this Glow worm Ultimate3 35 Combi boiler be appropriate for?

A PlumbProud Gas Safe boiler installer would recommend that this Glow worm Ultimate3 35 Combi boiler is appropriate for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

You should also consider a combi boiler's "flow rate" when making your choice.

The flow rate indicates how much water it can take from the mains supply at any one time (measured in litres per minute), which it then heats and distributes to different points in your home like your bathroom, kitchen and radiators. This Glow worm Ultimate3 35 Combi boiler's flow rate is 14 L/m.

Combi boilers have no storage tanks like system or heat only boilers. This means that if the water pressure where you live is low, there's no benefit in spending money on a combi with a high flow rate because a high flow rate doesn't mean it can draw any more water from the mains.

In addition, there might be lots of people in your household who want to use hot water at the same time while also having the central heating on. Given that average mains pressure in the UK is between 10 and 12 litres per second and a power shower usually requires about 12 litres of water per minute, a combi boiler might not be the right choice for you and your family.

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.


Making space for the Glow Worm Ultimate3 35

The Glow Worm Ultimate3 35 has the following dimensions - TBC mm high, TBC mm wide, and TBC mm deep.

Is the Glow Worm Ultimate3 35 non-condensing or condensing?

This Glow Worm Ultimate3 35 is a condensing gas boiler - we always recommend that clients choose the latest condensing models to benefit from the technology, which continues to improve year after year.

Condensing boilers capture the heat still present in flue exhaust gases and water vapour condensation, processing them through a secondary heat exchanger to, among other tasks, heat colder water returning from your radiators.

By selecting a modern condensing boiler, you'll save money on your gas bills as well as benefitting the wider environment.

How does the Glow Worm Ultimate3 35 combi rate environmentally?

With so many of us worried about the environmental impact of our personal choices, the relationship between how we heat our homes and climate change has become an important issue for many homeowners.

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.

Will installing a Glow Worm Ultimate3 35 combi be a positive contribution to the environment? Let's see what the experts say.

An energy efficiency rating of 92% or above is a legal requirement for all boilers manufactured and installed in the UK today. 92% is equivalent to a low-to-middle "A" grade on the "Seasonal Efficiency of Domestic Boilers" (SEDBUK) scale.

Energy efficiency measures how much energy a boiler uses and wastes in the course of its normal operation. The lower the waste, the lower your gas bills.

The Glow Worm Ultimate3 35 was awarded an efficiency rating of "89.7%", equivalent to a "B" rating on the SEDBUK system.

How long is the warranty period on a Glow Worm Ultimate3 35 combi boiler?

The Glow Worm Ultimate3 35 boiler is covered by a parts and labour warranty of 10 years.


Glow worm Ultimate3 35 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.7%
Band ratingB
LPG Compatible?Yes
P/L Warranty10 Years
Output in kW35 kW
MountingWall
Flow rate14 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 Ultimate3 35 boiler

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Glow worm Ultimate3 35 Combi Gas boiler

  1. Home
  2. Glow worm Ultimate3 35
Plumbproud rating for this boiler
84.25%

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 84.25% from our engineers.

We would expect that, unless there are complications during fitting, this Glow worm Ultimate3 35 Combi boiler would cost £1,800 supplied and professionally installed through PlumbProud.

We recommend that you speak to our friendly advisors by calling 01604 343053 to seek professional advice on whether the Glow Worm Ultimate3 35 boiler is right for your home. Our team can also provide you with a free quotation for this Glow worm Ultimate3 35 Combi boiler. Alternatively, click here to email us or enter your postcode into the quotation box on this page.


Installed price guideline
£1,800

Get your free quote

Glow worm Ultimate3 35 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating89.7%
Band ratingB
LPG Compatible?Yes
P/L Warranty10 Years
Output in kW35 kW
MountingWall
Flow rate14 L/m

Glow worm Ultimate3 35 Combi Gas boiler frequently asked questions

Glow Worm Ultimate3 35 - a regular boiler, combi boiler or system boiler?

Glow Worm’s Ultimate3 35 is one you might consider if you’re looking for a combi boiler for your house or flat.

Traditionally, most boilers required you to find space in your property for one or more large storage tanks. These tanks would either keep water warm or hold it in reserve for later heating. Manufacturers originally introduced combi boilers to offer homeowners the same level of warmth and hot water without taking up as much space – remember that the UK has some of the smallest homes in the Western world.

With a combi boiler, the hot water needed for your radiators and taps is provided on demand. Water from the mains passes through your combi boiler and the technology within it instantly heats the cold water. It then distributes that hot water around your home.

The biggest drawback for combi boilers is that they have a maximum capacity in volume for heating water. This means that if someone wants to use the shower while another person wants to use a hot water tap, the amount of water reaching each point falls, resulting in a drop in water pressure.

Is a Glow Worm Ultimate3 35 combi boiler suitable for my house or apartment?

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 Ultimate3 35 combi is 35 kW, so which types of property would this Glow worm Ultimate3 35 Combi boiler be appropriate for?

An experienced Gas Safe boiler installer would be likely to recommend that this Glow worm Ultimate3 35 Combi boiler is capable of providing heating and hot water to 15 or more radiators and two or more bathrooms and would therefore be most suitable for larger properties including detached homes.

When choosing a combi boiler for your home, you need to think about "flow rates" as well as output rates. This Glow worm Ultimate3 35 Combi boiler's flow rate is 14 L/m.

This indicates the maximum volume of hot water (measured in litres per minute) that your boiler can heat then distribute to your taps, showers and radiators at any one time. The greater the demand for hot water in your home, the higher the flow rate you will require.

However, all combi boilers like the Glow Worm Ultimate3 35 draw water directly from the mains and heat it instantly.

This means that they can only heat and distribute water at the rate it enters the property (the "mains pressure" rate). For example, if your mains pressure is 11 litres per minute, this will be the highest flow rate you can achieve even if your boiler's flow rate is 17l/m.

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.


Glow Worm Ultimate3 35 dimensions

The Glow Worm Ultimate3 35 measures TBC mm in height by TBC mm in width by TBC mm in depth.

Is the Glow Worm Ultimate3 35 non-condensing or condensing?

We recommend that you select a condensing boiler like the Glow Worm Ultimate3 gas Glow Worm Ultimate3 35 for your home if possible because of the environmental benefits and the money you'll save on your gas bills.

Condensing boilers are much more energy-efficient than older, non-condensing models as they capture and recycle the heat still present in the water vapour condensation and flue exhaust gases that your boiler creates when burning gas for reuse.

How does the Glow Worm Ultimate3 35 combi boiler 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.

With central heating being responsible for 14% of greenhouse gas emissions in the UK, your choice of boiler matters. Gas boilers are also responsible for the significant atmospheric volumes of dangerous nitrogen dioxide emissions in larger British cities.

Would installing a Glow Worm Ultimate3 35 combi boiler in your home help combat climate change? What do the figures suggest?

Boilers manufactured after April 2018 in the UK must achieve an "A" on the SEDBUK grading system as well as score a minimum of 92% on a separate energy efficiency test. Prior to that, the minimum was 88% - boilers rated at 88% and 89% were given a “B” rating (90% and higher were given an "A").

An energy efficiency rating describes how much energy the boiler uses and how much it wastes when in use.

The Glow Worm Ultimate3 35 was awarded an efficiency rating of 89.7% with a SEDBUK grading of "B".

How long am I covered by the warranty for if the Glow Worm Ultimate3 35 breaks down?

The Glow Worm Ultimate3 35 boiler is provided with a parts and labour warranty lasting 10 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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