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Glow Worm Boilers
Glow Worm Boilers
The range of glow worm boilers available at PlumbProud
In 1934, the Glow-worm Boiler and Fireplace Co Ltd started manufacturing boilers with its factory directly powered by the River Derwent. For years, the company was best known for its technologically advanced back boilers eventually coming late to the fast-growing combi boiler market in 1988 with its Hotwater Express.
Since then, the Glow Worm brand has synonymous with innovation. In the early 90s, it manufactured the first condensing boiler which broke through into people’s consciousnesses and it created the ultra-thin and eye-catching ‘Micron’ combi model – the smallest central heating system appliance ever seen in Britain.
In 2001, the company was taken over by Vaillant but it’s never stopped thinking big…and small. Its research and development team focuses on achieving much lower energy consumption and in making their boilers as small as feasibly possible, best characterised by the stunning BetaCom C model from 2008.
Glow worm boilers and the company itself are held in high esteem by their customers. Over 5,000 people have given the company a 4.7 out of 5 on Trustpilot. These sentiments are echoed by our customers who love the robustness of their boilers and how efficient and cheap to run they are.
To book a visit from a PlumbProud heating surveyor for a quote on a new Glow worm boiler, please call us on 01604 343053 or enter your postcode into one of the response forms on this page and click “SEND”.
Glow worm’s range at PlumbProud
Glow worm combi boilers
For customers in smaller properties with one bathroom, a Glow worm combi boiler is likely to be the best choice for you. Combi boilers are economical to run and they provide instant hot water and heat to your home when you need it. And most combis can be hidden easily behind a kitchen cupboard.
Please click to see our range of Glow worm combi boilers.
Glow worm system boilers
Thanks to its energy efficient insulation cylinder, you’ll never be short of hot water again in your property. Flow rates remain at mains pressure even when there’s a high level of demand for hot water in your property. Prices for system boilers have come down in recent years as have running costs.
Please click to see our range of Glow worm system boilers.
Glow worm heat only (regular) boilers
Choose a Glow worm regular boiler if you live in a very large property with multiple bathrooms and a high number of radiators. Thanks to its insulation and cold water tanks, you’ll be able to distribute vast volumes of warm water with no drop in pressure to multiple taps, showers, and radiators.
Please click to see our range of Glow worm heat only boilers.
Glow worm and PlumbProud
Whether you want a Glow worm combi boiler, a Glow worm system boiler, or a Glow worm heat only boiler, get one of our engineers around so that you can tell them exactly what it is that you want from your brand new central heating system. They’ll share their experience and advise with you so that you choose the best new boiler for your home within the budget you’ve set.
To find out more about our range of Glow worm boilers and which would be right for your home, please call us on 01604 343053 or enter your postcode into one of the response forms on this page and click “SEND”.
Get your free quote
Glow Worm Boilers boilers for smaller homes
Top smaller home heat only boiler - Glow worm Energy 12kW
Our score rating: 77.34%
Efficiency rating
89.3%
Band rating
B
Output in kW
12 kW
Height
700 mm
Width
375 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,800
Other glow worm heat only boilers to consider for smaller homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 12kW | 77.34% | £1,800 |
| Glow worm Energy 15kW | 76.67% | £1,800 |
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Top smaller home system boiler - Glow worm Energy 12kW
Our score rating: 76.77%
Efficiency rating
89.3%
Band rating
B
Output in kW
12 kW
Height
700 mm
Width
390 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,800
Other glow worm system boilers to consider for smaller homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 12kW | 76.77% | £1,800 |
| Glow worm Energy 15kW | 76.60% | £1,800 |
| Glow worm Energy 18kW | 76.16% | £1,800 |
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Get your free quote
Glow Worm Boilers boilers for medium homes
Top medium home combi boiler - Glow worm Betacom4 24
Our score rating: 87.61%
Efficiency rating
94%
Band rating
A
Output in kW
21 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,600
Other glow worm combi boilers to consider for medium homes
| Range and model | Rating | Estimated price |
| Glow worm Betacom4 24 | 87.61% | £1,600 |
| Glow worm Easicom 24 | 83.34% | £1,700 |
| Glow worm Easicom3 24 | 82.80% | £1,700 |
| Glow worm Energy 25kW | 76.97% | £1,800 |
| Glow worm Essential 24 | 71.05% | £2,900 |
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Top medium home heat only boiler - Glow worm Easicom 25
Our score rating: 81.94%
Efficiency rating
94%
Band rating
A
Output in kW
25 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
TBC
Supply and installation around £1,700
Other glow worm heat only boilers to consider for medium homes
| Range and model | Rating | Estimated price |
| Glow worm Easicom 25 | 81.94% | £1,700 |
| Glow worm Ultimate3 25 | 79.98% | £1,800 |
| Glow worm Energy 12kW | 77.34% | £1,800 |
| Glow worm Energy 15kW | 76.67% | £1,800 |
| Glow worm Energy 25kW | 75.64% | £1,900 |
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Top medium home system boiler - Glow worm Easicom3 25
Our score rating: 80.47%
Efficiency rating
89.7%
Band rating
B
Output in kW
25 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,600
Other glow worm system boilers to consider for medium homes
| Range and model | Rating | Estimated price |
| Glow worm Easicom3 25 | 80.47% | £1,600 |
| Glow worm Ultimate3 25 | 79.98% | £1,800 |
| Glow worm Ultimate3 25 | 79.98% | £1,800 |
| Glow worm Energy 12kW | 76.77% | £1,800 |
| Glow worm Energy 15kW | 76.60% | £1,800 |
| Glow worm Energy 18kW | 76.16% | £1,800 |
| Glow worm Energy 25kW | 75.45% | £1,900 |
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Get your free quote
Glow Worm Boilers boilers for larger homes
Top larger home combi boiler - Glow worm Ultimate3 30
Our score rating: 85.30%
Efficiency rating
89.6%
Band rating
B
Output in kW
30 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
TBC
Supply and installation around £1,800
Other glow worm combi boilers to consider for larger homes
| Range and model | Rating | Estimated price |
| Glow worm Ultimate3 30 | 85.30% | £1,800 |
| Glow worm Ultimate3 35 | 84.25% | £1,800 |
| Glow worm Betacom4 30 | 83.20% | £1,600 |
| Glow worm Easicom 28 | 82.31% | £1,700 |
| Glow worm Energy 30kW | 75.44% | £1,900 |
| Glow worm Energy 35kW | 74.38% | £2,000 |
| Glow worm Energy 35kW | 73.50% | £2,700 |
| Glow worm Essential 28 | 73.29% | £2,300 |
| Glow worm Easicom3 28 | TBC% | £TBC |
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Top larger home heat only boiler - Glow worm Energy 30kW
Our score rating: 75.01%
Efficiency rating
89.2%
Band rating
B
Output in kW
30 kW
Height
700 mm
Width
375 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,900
Other glow worm heat only boilers to consider for larger homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 30kW | 75.01% | £1,900 |
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Top larger home system boiler - Glow worm Energy 30kW
Our score rating: 74.81%
Efficiency rating
89.3%
Band rating
B
Output in kW
30 kW
Height
700 mm
Width
390 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,900
Other glow worm system boilers to consider for larger homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 30kW | 74.81% | £1,900 |
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Newsletter
Stay in touch with Plumbproud for the latest news, reviews, and special offers on keeping your home warm and cosy
GOOD Based on 59 reviews.
Bob Maine
2021-09-29
New bathroom installation over two years ago. Had some some issues but all resolved.Warranty extended one year and a repair was made even after warranty expired.
KELLY HENDERSON
2021-09-14
I'm more than happy with the service received from PlumbProud. Right from the moment I enquired online about the cost of a new boiler, the service has been thorough. I received a call very soon after my enquiry and organised a next day visit. The representative was friendly and understood what i needed in terms of boiler size etc. He also talked me through the finance options available. Installation took a day and I was extremely impressed by the standard of work and professionalism of the two young men. They worked efficiently, politely and tidily to take out a monster of an old boiler and fit the new one in it's place. They took the boiler with them at my request leaving only the box for me to put with the recycling. The office staff are polite and friendly - working to get all the paperwork done and see to any modifications needed. Im very happy to recommend this company.
Sue Priestley
2021-09-09
Helpful professional , oil boiler fitted pleasant friendly professional team ,
Ray Brady
2021-09-03
From start to finish , no pressure to buy , Nick from the survey ,Gemma in the office , Oleg on the install . Professional , helpful , easy to deal with , both the lads were dog friendly . Oleg , very neat and tidy , can't complain . Plumbproud were not the cheapest , not the dearest either , they were extremely helpful from the off and they kept the appointments , which is why i went with them .
Franki Williams
2021-08-28
Benny Wood
2021-08-26
Anthony W
2021-08-25
Great job thanks for your help plumbproud
Jill Willis
2021-08-18
Super fast service Ian came to survey and price up on Wednesday really good price for boiler, installation was the very next day what more could you ask for, the lads that installed the boiler we’re very professional. I can’t praise plumbproud enough I highly recommend them.
lynn newton
2021-08-12
Kevin Peach
2021-07-30
Excellent service from the survey engineer to the engineer who fitted the Boiler , and to the fitter who done the magna cleanse for us .A first class job ,by professional people . The office staff were very polite , and the whole job ran smoothly .
Combi boilers
Choose from the UK’s biggest range of combis
Heat only boilers
The ideal boiler perfect for the largest homes
System boilers
Ideal for 3+ bedroom, 2+ bathroom homes
Boiler quote
Free, no obligation quote from our engineer
Frequently Asked Questions
Next to each boiler model on our site, you’ll see has a price displayed next to it whether it’s a Glow worm Energy system boiler or a Betacom4 combi boiler.
What does that price mean? It’s not a fixed price – it’s actually an indicative price there to give you an idea on how much it would cost our boiler engineers to come around and install it for you if there were no complicating factors on the fit like the relocation of the boiler site in your home, switching from one type of boiler to another, or replacing pipework.
95% of boiler replacement work we do is standard and the quotes our customers receive are normally within 5% either way of the price you see on the website. For the other 5% where installation is challenging, the final price is more.
That’s why we always come around to visit you beforehand. We want to get to know you and what it is that you want from your boiler. We then leave you with a quote showing the boiler we recommend and the fixed price we’d charge for its installation.
Since we began trading in 2013, we’ve installed thousands of boilers in customers’ homes. Every time we visit a customer, they tell us what they want from their central heating system and boiler.
Using that information, we then came up with an algorithm which considers dozens of different factors on a boiler and its manufacturer.
That algorithm then produces a score for each boiler. We like to think that our quality score shares with you how close a boiler is to matching 100% the expectations and wants of the 1,000s of customers we’ve served.
Glow worm boiler customers benefit from a 2 to 7 year guarantee as standard.
To qualify for free boiler repair during your warranty period, you’ll need to book a boiler service 15 months after installation and generally every 12 months thereafter.
If cutting your energy bills and reducing your carbon footprint is important to you, then Glow worm’s heating solutions are worth considering for your home.
Each Glow worm boiler we install performs very well on both ERP and SEDBUK tests.
All Glow worm boilers including combi boilers, heat only boilers, and system boilers are condensing boilers. Not only does this mean that they’re fully compliant with current UK legislation but it can mean a much lower annual heating bill for your home depending on the boiler you’re replacing.
Yes – please ask your engineer about our instalment options when they visit you to give you your quote.
Ordering a Glow worm boiler through PlumbProud
We’d appreciate the opportunity to meet you and to give you our professional advice on the best type of boiler for your home. You’ll find our engineers friendly, courteous, knowledgeable, and generous with the information they share with you. They want to help you make the best decision.
To find out which competitively-priced Glow worm central heating system might be right for your home, please call us on 01604 343053 or enter your postcode into one of the response forms on this page and click “SEND”.
The range of glow worm boilers available at PlumbProud
In 1934, the Glow-worm Boiler and Fireplace Co Ltd started manufacturing boilers with its factory directly powered by the River Derwent. For years, the company was best known for its technologically advanced back boilers eventually coming late to the fast-growing combi boiler market in 1988 with its Hotwater Express.
Since then, the Glow Worm brand has synonymous with innovation. In the early 90s, it manufactured the first condensing boiler which broke through into people’s consciousnesses and it created the ultra-thin and eye-catching ‘Micron’ combi model – the smallest central heating system appliance ever seen in Britain.
In 2001, the company was taken over by Vaillant but it’s never stopped thinking big…and small. Its research and development team focuses on achieving much lower energy consumption and in making their boilers as small as feasibly possible, best characterised by the stunning BetaCom C model from 2008.
Glow worm boilers and the company itself are held in high esteem by their customers. Over 5,000 people have given the company a 4.7 out of 5 on Trustpilot. These sentiments are echoed by our customers who love the robustness of their boilers and how efficient and cheap to run they are.
To book a visit from a PlumbProud heating surveyor for a quote on a new Glow worm boiler, please call us on 01604 343053 or enter your postcode into one of the response forms on this page and click “SEND”.
Glow worm’s range at PlumbProud
Glow worm combi boilers
For customers in smaller properties with one bathroom, a Glow worm combi boiler is likely to be the best choice for you. Combi boilers are economical to run and they provide instant hot water and heat to your home when you need it. And most combis can be hidden easily behind a kitchen cupboard.
Please click to see our range of Glow worm combi boilers.
Glow worm system boilers
Thanks to its energy efficient insulation cylinder, you’ll never be short of hot water again in your property. Flow rates remain at mains pressure even when there’s a high level of demand for hot water in your property. Prices for system boilers have come down in recent years as have running costs.
Please click to see our range of Glow worm system boilers.
Glow worm heat only (regular) boilers
Choose a Glow worm regular boiler if you live in a very large property with multiple bathrooms and a high number of radiators. Thanks to its insulation and cold water tanks, you’ll be able to distribute vast volumes of warm water with no drop in pressure to multiple taps, showers, and radiators.
Please click to see our range of Glow worm heat only boilers.
Glow worm and PlumbProud
Whether you want a Glow worm combi boiler, a Glow worm system boiler, or a Glow worm heat only boiler, get one of our engineers around so that you can tell them exactly what it is that you want from your brand new central heating system. They’ll share their experience and advise with you so that you choose the best new boiler for your home within the budget you’ve set.
To find out more about our range of Glow worm boilers and which would be right for your home, please call us on 01604 343053 or enter your postcode into one of the response forms on this page and click “SEND”.
Get your free quote
Glow Worm Boilers boilers for smaller homes
Top smaller home heat only boiler - Glow worm Energy 12kW
Our score rating: 77.34%
Efficiency rating
89.3%
Band rating
B
Output in kW
12 kW
Height
700 mm
Width
375 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,800
Other glow worm heat only boilers to consider for smaller homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 12kW | 77.34% | £1,800 |
| Glow worm Energy 15kW | 76.67% | £1,800 |
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Top smaller home system boiler - Glow worm Energy 12kW
Our score rating: 76.77%
Efficiency rating
89.3%
Band rating
B
Output in kW
12 kW
Height
700 mm
Width
390 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,800
Other glow worm system boilers to consider for smaller homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 12kW | 76.77% | £1,800 |
| Glow worm Energy 15kW | 76.60% | £1,800 |
| Glow worm Energy 18kW | 76.16% | £1,800 |
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Get your free quote
Glow Worm Boilers boilers for medium homes
Top medium home combi boiler - Glow worm Betacom4 24
Our score rating: 87.61%
Efficiency rating
94%
Band rating
A
Output in kW
21 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,600
Other glow worm combi boilers to consider for medium homes
| Range and model | Rating | Estimated price |
| Glow worm Betacom4 24 | 87.61% | £1,600 |
| Glow worm Easicom 24 | 83.34% | £1,700 |
| Glow worm Easicom3 24 | 82.80% | £1,700 |
| Glow worm Energy 25kW | 76.97% | £1,800 |
| Glow worm Essential 24 | 71.05% | £2,900 |
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Top medium home heat only boiler - Glow worm Easicom 25
Our score rating: 81.94%
Efficiency rating
94%
Band rating
A
Output in kW
25 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
TBC
Supply and installation around £1,700
Other glow worm heat only boilers to consider for medium homes
| Range and model | Rating | Estimated price |
| Glow worm Easicom 25 | 81.94% | £1,700 |
| Glow worm Ultimate3 25 | 79.98% | £1,800 |
| Glow worm Energy 12kW | 77.34% | £1,800 |
| Glow worm Energy 15kW | 76.67% | £1,800 |
| Glow worm Energy 25kW | 75.64% | £1,900 |
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Top medium home system boiler - Glow worm Easicom3 25
Our score rating: 80.47%
Efficiency rating
89.7%
Band rating
B
Output in kW
25 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,600
Other glow worm system boilers to consider for medium homes
| Range and model | Rating | Estimated price |
| Glow worm Easicom3 25 | 80.47% | £1,600 |
| Glow worm Ultimate3 25 | 79.98% | £1,800 |
| Glow worm Ultimate3 25 | 79.98% | £1,800 |
| Glow worm Energy 12kW | 76.77% | £1,800 |
| Glow worm Energy 15kW | 76.60% | £1,800 |
| Glow worm Energy 18kW | 76.16% | £1,800 |
| Glow worm Energy 25kW | 75.45% | £1,900 |
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Get your free quote
Glow Worm Boilers boilers for larger homes
Top larger home combi boiler - Glow worm Ultimate3 30
Our score rating: 85.30%
Efficiency rating
89.6%
Band rating
B
Output in kW
30 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
TBC
Supply and installation around £1,800
Other glow worm combi boilers to consider for larger homes
| Range and model | Rating | Estimated price |
| Glow worm Ultimate3 30 | 85.30% | £1,800 |
| Glow worm Ultimate3 35 | 84.25% | £1,800 |
| Glow worm Betacom4 30 | 83.20% | £1,600 |
| Glow worm Easicom 28 | 82.31% | £1,700 |
| Glow worm Energy 30kW | 75.44% | £1,900 |
| Glow worm Energy 35kW | 74.38% | £2,000 |
| Glow worm Energy 35kW | 73.50% | £2,700 |
| Glow worm Essential 28 | 73.29% | £2,300 |
| Glow worm Easicom3 28 | TBC% | £TBC |
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Top larger home heat only boiler - Glow worm Energy 30kW
Our score rating: 75.01%
Efficiency rating
89.2%
Band rating
B
Output in kW
30 kW
Height
700 mm
Width
375 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,900
Other glow worm heat only boilers to consider for larger homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 30kW | 75.01% | £1,900 |
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Top larger home system boiler - Glow worm Energy 30kW
Our score rating: 74.81%
Efficiency rating
89.3%
Band rating
B
Output in kW
30 kW
Height
700 mm
Width
390 mm
Depth
280 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A
Supply and installation around £1,900
Other glow worm system boilers to consider for larger homes
| Range and model | Rating | Estimated price |
| Glow worm Energy 30kW | 74.81% | £1,900 |
|
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Frequently Asked Questions
Next to each boiler model on our site, you’ll see has a price displayed next to it whether it’s a Glow worm Energy system boiler or a Betacom4 combi boiler.
What does that price mean? It’s not a fixed price – it’s actually an indicative price there to give you an idea on how much it would cost our boiler engineers to come around and install it for you if there were no complicating factors on the fit like the relocation of the boiler site in your home, switching from one type of boiler to another, or replacing pipework.
95% of boiler replacement work we do is standard and the quotes our customers receive are normally within 5% either way of the price you see on the website. For the other 5% where installation is challenging, the final price is more.
That’s why we always come around to visit you beforehand. We want to get to know you and what it is that you want from your boiler. We then leave you with a quote showing the boiler we recommend and the fixed price we’d charge for its installation.
Since we began trading in 2013, we’ve installed thousands of boilers in customers’ homes. Every time we visit a customer, they tell us what they want from their central heating system and boiler.
Using that information, we then came up with an algorithm which considers dozens of different factors on a boiler and its manufacturer.
That algorithm then produces a score for each boiler. We like to think that our quality score shares with you how close a boiler is to matching 100% the expectations and wants of the 1,000s of customers we’ve served.
Glow worm boiler customers benefit from a 2 to 7 year guarantee as standard.
To qualify for free boiler repair during your warranty period, you’ll need to book a boiler service 15 months after installation and generally every 12 months thereafter.
If cutting your energy bills and reducing your carbon footprint is important to you, then Glow worm’s heating solutions are worth considering for your home.
Each Glow worm boiler we install performs very well on both ERP and SEDBUK tests.
All Glow worm boilers including combi boilers, heat only boilers, and system boilers are condensing boilers. Not only does this mean that they’re fully compliant with current UK legislation but it can mean a much lower annual heating bill for your home depending on the boiler you’re replacing.
Yes – please ask your engineer about our instalment options when they visit you to give you your quote.
Ordering a Glow worm boiler through PlumbProud
We’d appreciate the opportunity to meet you and to give you our professional advice on the best type of boiler for your home. You’ll find our engineers friendly, courteous, knowledgeable, and generous with the information they share with you. They want to help you make the best decision.
To find out which competitively-priced Glow worm central heating system might be right for your home, please call us on 01604 343053 or enter your postcode into one of the response forms on this page and click “SEND”.