Glow-worm Boiler Prices and Reviews

Glow-worm specialise in heating solutions, and are committed to 'top quality, reliability and exceptional durability'.

Prices of Glow-worm boilers suit those on a budget, with their most expensive boiler costing just £863.

You can compare prices of Glow-worm boilers by completing the form above.



How much will a Glow-worm boiler cost?

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Glow-worm are a UK company that have been in operation since 1934 and are now owned by the Vaillant Group. They produce a range of boilers across three types: combi, system and heat only. The prices of these vary according to the different size and capability levels of each.

As a guideline, the cost of Glow-worm boilers range between £664 - £863.

The cheapest in the range is the Ultimate2 30c combi boiler at £667 and the most expensive is Ultimate2 35c at £865, also a combi boiler. The majority of their system boilers are priced at the £840 mark.

The table below shows the typical price of Glow-worm's cheapest and most expensive combi and system boilers.

Type of Glow-worm Boiler
Price of Cheapest Boiler
Price of Most Expensive Boiler
Combi
£667.00
£865.00
System
£840.00
£845.00


Click here for more information about average boiler prices and installation costs.



Glow-worm combi boiler prices

A combination or ‘combi’ boiler heats water directly from the mains when you turn on a tap. This means that unlike a heat-only or regular boiler, you won’t need a separate hot water storage cylinder or a cold water storage tank.

Combi boilers tend to produce good shower pressure and are also more cost and energy-efficient as the water is heated instantly rather than stored in a cylinder.

Glow-worm have a range of combi boilers. The cheapest in the range is the Ultimate2 30c combi boiler at £667 and the most expensive is Ultimate2 35c at £865.

The table below compares the key product information of Glow-worm's top combi boilers, including price.

Glow-worm Combi Boiler
Fuel
Size (heat output in kW)
ErP Efficiency (water heating)
Typical Price
Ultimate2 30c
Gas
30;35
A
£667.00
Betacom3 24c
Gas
24;30
A
£685.00
ENERGY 35c - A (H-GB)
Gas
25;30;35
A
£844.00
Ultimate2 35c
Gas
30;35
A
£865.00


Find out whether a combi boiler is suitable for your household by reading our guide on the best boilers.


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Glow-worm system boiler prices

System boilers have heating and hot water components in-built so there is no need for an extra water tank, although it does require a cylinder for storing hot water. They are also compatible with solar water heating systems which present environmental benefits and energy bill savings.

Glow-worm’s Energy ErP A rated system boilers cost approximately £841 and are available in sizes: 12, 15, 18, 25, 30kW. They are compact in design with a rear flue option, enabling them to install in compact spaces in the home.

The table below compares the top system boilers we recommend from Glow-worm.

Glow-worm System Boiler
Fuel
Size (heat output in kW)
ErP Efficiency (water heating)
Typical Price
ENERGY 12s - A (H-GB)
Gas
12;15;18;25;30
n/a
£840.00
ENERGY 18s - A (H-GB)
Gas
12;15;18;25;30
n/a
£841.00
ENERGY 30s - A (H-GB)
Gas
12;15;18;25;30
n/a
£845.00
Ultimate2 35c
Gas
30;35
B
£865.00


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Review of Glow-worm boilers

Glow-worm boilers received an overall brand score of 52% from Which? The brand score is assessed by customer survey and ratings from heating engineers. These surveys were carried out in April and May 2015.

According to Which? Glow-worm boilers received an average score for their reliability record and fell short in the 2016 owners survey compared to the reliability of other brands like, Worcester Bosch, Vaillant, Viessmann, Johnson & Starley and Intergas.

Which? also covered the opinions of heating engineers who rank the build quality of a Glow-worm boiler as average. The engineers were positive about Glow-worm’s association with the Vaillant group, which has a very high reputation within the industry.

When asked about their weaknesses, some engineers mentioned that Glow-worm boilers simply aren’t as reliable or as good quality as the very best on the market. In the survey, an engineer described Glow-worm boilers as ‘a good boiler if you are looking in the mid-price bracket’.


See reviews and prices for other popular boiler brands:



How do I buy a Glow-worm boiler?

Selecting the right boiler will first require an assessment of your home’s credentials. Glow-worm has a list of trusted engineers who are trained in their range of products and who are registered with a competent person's scheme such as Gas Safe.

You can begin the process by going to their website where you enter your details into their system. A local engineer who is trained in Glow-worm installations will then contact you to gather information and provide you with an accurate quote.


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