Glow-worm Boilers: A Review of Prices and Warranty on all Models
As a UK based heating company that was established in 1934, Glow-worm has been
producing reliable heating and energy products for over 80 years. They now manufacture their boilers at a state of the art production facility in Belper, Derbyshire, and have a focus on providing the most reliable and highly efficient products possible.
The Glow-worm boiler range
Glow-worm offers a selection of combi, system and regular gas boilers. Some of which are compatible with liquified petroleum gas (LPG). Their main 3 boiler ranges are the Energy range, the Ultimate3 range and the Easicom3 range, which are available across all boiler types. Glow-worm offer a wider selection of combi boiler models with their Betacom4 and Compact combi boiler models.
When picking out the best boiler for your specific needs, it can be hard to know where to start. That’s why we recommend getting professional advice from a local Gas Safe registered heating engineer. However, sometimes picking the best heating engineer can be harder than finding the right boiler. That’s why we’re here to help.
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Comparing the top 3 Glow-worm boiler models
If you’re only interested in Glow-worm’s most popular boiler range, look no further than their Energy models. These boilers come with a high-quality aluminium heat exchanger, a 7 year warranty as standard, and an easy to read, bright LCD display.
The Energy combi boiler also includes the following features and benefits:
- Most models in the range are Quiet Mark approved (Excludes: 30kW model)
- They can be fitted with a top or rear flue, to suit your specific requirements
- All boiler models are compact and can be installed in a kitchen cupboard
The Energy system boiler provides the following features and benefits:
- The majority of models in this range are Quiet Mark approved (Excludes: 15 and 30kW models)
- This boiler is available in a wide range of outputs: 12kW – 30kW
- All boiler models in this range can be fitted with a top or rear flue
The Energy regular boiler has the following features and benefits:
- Aluminium heat exchanger that helps to reduce energy consumption, and lower bills
- Bright LCD display for easy use in low-light conditions
- Compact dimensions that allow for installation in a cupboard
How much are Glow-worm boilers?
The boilers that are available in Glow-worm’s ranges are available for as little as £540, but can also cost as much as £1,234. To give you a better idea of how much each boiler type may cost, we have provided a simple price comparison table below.
| Boiler Type | Price Range |
|---|---|
| Combi | £540 – £1,234 |
| System | £595 – £850 |
| Regular | £685 – £890 |
The prices in this table are only a guideline and don’t include any extra installation costs. To get an accurate idea of how much installing a new Glow-worm boiler may cost, we highly recommend getting quotes from Gas Safe registered heating engineers near you.
Instead of putting time and effort into finding a local heating engineer, and paying whatever they ask without knowing whether you’ve got a good deal, you can save time and money by using our service to get up to 3 quotes from boiler installers in your area, and picking the quote which best suits your specific needs. It’s completely free, and there’s no obligation to accept any of the quotes you receive. All you need to do to get started is click the button below.
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Save up to £500 on installation by comparing quotes. A new energy efficient boiler can also save up to £840 a year on your energy bills.
Compare Glow-worm combi boiler prices
Perfect for use in smaller properties with 1-2 bathrooms and fewer than 20 radiators. Combi boilers are the best choice, when it comes to getting a boiler that saves as much space as possible.
To compare up to 4 boilers, follow these 3 simple steps:
- Choose which boilers to compare by clicking the relevant green + symbols on the table.
- Click on this button
which appears at the bottom right of the page (this will send you to the comparison table). - Use the comparison table to choose which boiler is best for your needs.
Compare Glow-worm system boiler prices
System boilers can provide ample heating and domestic hot water, without the need for a cold water feed tank, making them the best option for larger homes with multiple bathrooms. To see which system boiler is best suited to your needs, you can use the comparison table below.
To compare up to 4 boilers, follow these 3 simple steps:
- Choose which boilers to compare by clicking the relevant green + symbols on the table.
- Click on this button which appears at the bottom right of the page (this will send you to the comparison table).
- Use the comparison table to choose which boiler is best for your needs.
| Boiler Model | kW | Efficiency | Warranty | Typical Price | |
|---|---|---|---|---|---|
Available |
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| Glow-worm Energy System 12kW Gas Boiler | 12kw | 89.3% | 7 years | £700 | VIEW |
| Glow-worm Energy System 15kW Gas Boiler | 15kw | 89.3% | 7 years | £725 | VIEW |
| Glow-worm Energy System 18kW Gas Boiler | 18kw | 89.3% | 7 years | £765 | VIEW |
| Glow-worm Energy System 25kW Gas Boiler | 25kw | 89.3% | 7 years | £785 | VIEW |
| Glow-worm Energy System 30kW Gas Boiler | 30kw | 89.3% | 7 years | £850 | VIEW |
| Glow-worm Ultimate3 25kW System Gas Boiler | 25kw | 89.7% | 5 years | £725 | VIEW |
| Glow-worm Easicom3 25s System Gas Boiler | 25kw | 89.7% | 3 years | £595 | VIEW |
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| Glow-worm Ultimate2 25kW System Gas Boiler | 25kw | 89.3% | 5 years | £820 | VIEW |
Compare Glow-worm regular boiler prices
Regular boilers are suitable for use within a large home that has multiple bathrooms. However, they do require a cold water feed tank to supply them with water, rather than being connected directly to the water mains. A new regular boiler should only generally be used to replace an old regular boiler, otherwise you will have to pay extra for the installation of pipework that may not be required.
To compare up to 4 boilers, follow these 3 simple steps:
- Choose which boilers to compare by clicking the relevant green + symbols on the table.
- Click on this button which appears at the bottom right of the page (this will send you to the comparison table).
- Use the comparison table to choose which boiler is best for your needs.
| Boiler Model | kW | Efficiency | Warranty | Typical Price | |
|---|---|---|---|---|---|
Available |
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| Glow-worm Easicom₃ 25kW Regular Gas Boiler | 25kw | 94% | 3 years | £685 | VIEW |
| Glow-worm Energy Regular 12kW Gas Boiler | 12kw | 89.3% | 7 years | £713 | VIEW |
| Glow-worm Energy Regular 15kW Gas Boiler | 15kw | 89.3% | 7 years | £780 | VIEW |
| Glow-worm Energy Regular 18kW Gas Boiler | 18kw | 89.3% | 7 years | £760 | VIEW |
| Glow-worm Energy Regular 25kW Gas Boiler | 25kw | 89.2% | 7 years | £790 | VIEW |
| Glow-worm Ultimate3 25kW Regular Gas Boiler | 25kw | 89.6% | 5 years | £725 | VIEW |
| Glow-worm Energy Regular 30kW Gas Boiler | 30kw | 89.2% | 7 years | £890 | VIEW |
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| Glow-worm Ultracom 24 hxi Regular Gas Boiler | 24kw | 88.5% | 5 years | £720 | VIEW |
| Glow-worm Flexicom hx 24kW Regular Gas Boiler | 24kw, | 88.4% | 5 years | £675 | VIEW |
| Glow-worm Ultimate2 Regular 25kW Regular Gas Boiler | 25kw | 89.3% | 5 years | £870 | VIEW |
| Glow-worm Ultracom 24 hxi Regular Gas Boiler | 30kw | 88.4% | 5 years | £730 | VIEW |
Glow-worm boiler warranty
Glow-worm boilers come with a range of different warranty/guarantee lengths. The shortest is a 5 year out of the box guarantee with the longest being 10 years. To secure a 10 year guarantee with Glow-worm, you must register the boiler through Club Energy with a Glow-worm Power Filter.
If your boiler is installed from a heating engineer on the Boiler Guide network, you could receive up to 14 years of boiler warranty.
This will depend on the type of boiler, the brand and who installs the boiler for you.
Will a Glow-worm boiler suit your home?
What kind of boiler is suitable for your home will depend largely on how many radiators and bathrooms you have. An easy way to gauge ‘what size boiler do I need?’ in kW, is to allow for between 1.5 and 2kW for every radiator in your home.
Output range on Glow-worm combi boilers
The most compact of the boiler types, combi boilers don’t require any external components, such as a separate hot water cylinder. However, they do require your property to have decent water pressure, in order to provide sufficient amounts of domestic hot water, and may only be capable of supplying hot water to 1-2 bathrooms effectively.
| Boiler Type | Output Ranges | Number of Radiators |
|---|---|---|
| Combi Boiler | 18kW – 35kW | 12 – 23 |
Output range on Glow-worm system boilers
System boilers are best suited to homes with a high hot water demand, and are often recommended for homes with multiple bathrooms. However, if you are replacing an old regular boiler, system boilers are a good option that can free up some space in the loft.
Boiler TypeOutput RangesNumber of RadiatorsSystem Boiler12kW – 30kW8 – 20
Output range on Glow-worm regular boilers
Regular boilers are most commonly found in older homes and generally take up the most room, due to their need for a separate hot water cylinder and cold water feed tank. They are suitable for larger homes with multiple bathrooms, but should only really be considered if you are replacing an old regular boiler.
Boiler TypeOutput RangesNumber of RadiatorsRegular Boiler12kW – 30kW8 – 20
FAQ
How long do Glow-worm boilers last?
Glow-worm boilers are designed to last and many of their models come with a 7 year warranty as standard. Glow-worm warranties can be extended when meeting certain criteria which you can find out more about here: Glow-worm warranties
Are Glow-worms good boilers?
Glow-worm boilers are one of the leading boiler brands in the UK and are highly rated on TrustPilot with a rating of 4.6/5 from over 5,000 reviews. As with all boilers, they are only as good as you allow them to be. By getting your boiler serviced annually, you will get the most out of it. Find out more about Glow-worm boiler servicing
How much are Glow-worm boilers?
Glow-worm boilers come in many shapes and sizes, and can be bought for as little as £540, or as much as £1,234. Find out more about Glow-worm boiler prices
Who makes Glow-worm boilers?
Glow-worm boilers are manufactured in-house at a state of the art production facility in Belper, Derbyshire. Glow-worm is part of the Vaillant group.
Why is my Glow-worm boiler not working?
There could be a number of reasons that your Glow-worm boiler is not working, and in some cases you may need the help of a heating engineer to solve the problem. Find out more about Glow-worm repair advice
Get your best deal
Quickly compare 3 FREE quotes
- Quotes from local engineers
- Get quotes today, installed tomorrow
- Finance options available
- Save up to £500 on installation
- Quotes from local engineers
- Get quotes today, installed tomorrow
- Finance options available
- Save up to £500 on installation
1,8 million quotes provided in 10 years
See more reviews:
