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Glow-Worm Boiler Costs, Information and Quotes


Glow-worm is a key player in the domestic heating market. As part of the Vaillant Group they offer an extensive range of boilers for all applications and budgets. With 80 years of experience in the industry, Glow-worm provides a like-for-like replacements for all combi, system and regular models at a competitive price to ensure it always meets customer requirements. Whether you’re looking for high performance with low emissions or a suitably sized boiler to fit into your space, Glow-worm has the right product for you.

The range of Glow-worm combi boiler models is divided into two main categories: condensing and non-condensing models, each being available as a standard or premium model. Both Glow-worm combi boiler categories are available in various sizes and in the form of electric boilers. Glow-worm condensing boilers are more efficient than non-condensing models, and also come with a factory guarantee that offers free repairs within the first 10 years of installation.

Their boilers are efficient, ergonomic and effective at providing you with heat when you need it. The company is also a great choice for those of you looking to eliminate the hassle of being tied with a long boiler maintenance contract. Glow-worm is not only a stylish but reliable brand that aims to help you save on your energy bills over the course of its lifespan.

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Compare Glow-worm Combi Boiler Features & Prices


If you’re looking for cost-effective central heating and hot water on a budget, Glow-worm combi boilers could be the solution. The combination of condensing technology, high performance and exceptional reliability is what makes these units the ideal choice for homes with an energy demand ranging from 18 to 27 kW.

One of the key advantages of installing a combi is that you don't need to fit a new cylinder in an airing cupboard or water tank in the loft making them ideal for smaller homes with small to medium demand for heating and hot water. There are also other advantages:

  • You get instant hot water with no need to pre-heat a tank of water.
  • It's an energy efficient solution as you heat water on demand.
  • You can enjoy lower fuel bills thanks to increased efficiency.
  • They are cost-effective to install, service and repair

If you’re on a tight budget and your energy demand range is 18-27 kW, they can be the right boiler solution.

Model kW ErP Warranty Price
Glow-worm Energy2 30c 30
A Heat
A Water
2 £993.87

Compare Glow-worm Regular Boiler Features & Prices


For homes with multiple people or families, or large living areas, regular boilers are ideal. Sized according to the number of cylinders and radiators they will heat, and using the highest quality materials to ensure reliability you can trust regular boilers to meet all your needs – a Glow-worm Regular boiler is a superb investment for your home.

The Ultracom 24hxi and the Flexicom hx range are good choices and come with numerous benefits for the consumer:

  • A variety of heating outputs to perfectly suit your home heating requirements.
  • Easy integration with existing pipework systems if already in place.
  • LPG compatible for those living off the grid.
  • The Energy Savings Trust recommend the Flexicom hx range making it very popular.
  • Easy installation and wall mountable to free up space.

The most powerful Glow-worm regular boiler has an output rating of 25 kW which will suit homes with 10-15 radiators. These sort of heating systems are the most traditional type and come in a wide range of sizes - from 9 kW up to 70 kW! You can see Glow-worm's range here:

Model kW ErP Warranty Price
Glow-worm Energy 18kW 18
A Heat
Water
2 £856.82
Glow-worm Energy 30kW 30
A Heat
A Water
2 £887.9

Compare Glow-worm System Boiler Features & Prices


Whether a property is a 1930s cottage or a 1950s semi-, the Glow-worm system boilers are very flexible, compact heating solutions. With output ratings ranging from 12 kW right up to 30 kW, there’s a suitable model for properties with less than 10 radiators to around 20.

There are 3 system boiler ranges in the Glow Worm catalogue covering a multitude of home demands. The Ultimate, Easicom and Energy range each some with a number of benefits:

  • Simple to use controls featuring well-lit LCD displays.
  • Modern, sleek designs that take up minimal space in order to fit in tighter spaces.
  • Grundfos modulating pumps achieving ErP A ratings across the range giving you cheaper energy bils.
  • 4-5 year parts and labour warranties across the range.
  • App controllable functions on both the Easicom and Ultimate range of boilers.
  • Numerous flue options and accessories helping to make the installation process as easy as possible.
  • Reduced noise levels giving low DB operation.

Their system boilers offer unparalleled efficiency and fluid versatility, providing the perfect combination of adaptability and value for money without sacrificing performance.

Model kW ErP Warranty Price
Glow-worm Energy 12kW 12
A Heat
Water
2 £721.44
Glow-worm Energy 15kW 15
A Heat
Water
2 £746.66
Glow-worm Energy 25kW 25
A Heat
A Water
2 £844.75

Glow-worm boiler controls


Glow Worm offer a variety of controls for their boilers enabling you to get the perfecr balance for your home requirements. From wired to wireless, app-controlled to manual there is a solution for all your hot water and heating needs.

MiSet boiler controls

MiSet heating controls

Both wired and wireless touch interfaces available making the MiSet a popular way to control your thermostat. Included is a timer assist to help you manage the timer and boiler modulation ensuring peak efficiency at all times.

MiGo personal heating assistant

Being able to control both your heating and hot water from an app at any time or place makes the MiGo very popular. The control unit actually learns as you use it to ensure you get the most efficiency out of your Glow-worm boiler.

MiGo personal heating assistant
Climapro2 thermostat boiler controls

Climapro2 RF thermostat

Their most advanced handheld wireless programmable thermostat which allows you to programme both your heating and hot water individually for each day. With a large easy to read screen it lends itself to effortless programming.

Climapro1 thermostat

A hugely popular wired or wireless unit that allows for daily programming of both heat and hot water to meet your exact needs. It will also remind you of your annual boiler service via its user-friendly design and clear backlit screen.

Climapro1 thermostat boiler controls
Climastat thermostat control

Climastat thermostat

A super-discreet, simple to use thermostat that can use existing wiring for ease of installation. The Climastat is compatible with all Glow-worm boilers making it easy to adjust your room temperature to a level that suits your needs.

Glow-worm warranty lengths explained


Glow-worm don't actually offer warranties, but rather guarantees. A typical guarantee lasts between 2-5 years and covers your boiler for all manufacturing faults that can rarely arise. It is also possible to extend this length to anything up to 10 years. If you would like to read more about the guarantee terms and conditions, plus how to register for a boiler warranty we've compiled a guide to all Glow-worm boiler guarantee lengths. Here you can look up a specific boiler model and see what standard warranty lengths are offered, and how you can extend the duration further.

Glow-worm boiler fault codes explained


Glow Worm uses only a few fault codes, which means that they are easy to locate and understand. If your glow worm boiler is not producing enough warm water or heating your dwelling to the desired temperature, then you can probably find the solution through tracking down the cause of one of these fault codes.

With Glow Worm error codes, you can trace the exact fault and pinpoint the problem. Every boiler has a unique fault code as well as a corresponding list on our website - even ones over 15 years old! Check out our guide to Glow Worm boiler fault codes to help you troubleshoot your boiler or determine whether it's time to call a local engineer.

Servicing your Glow-worm boiler


Have you ever considered the importance of an annual boiler service, or wondered what a boiler service involves? A boiler needs to be serviced regularly to ensure it can operate safely and as efficiently as possible. That’s why every professional heating engineer recommends having your boiler serviced each year.

There are many important reasons why you should have a reliable boiler service in place, but one of the main ones is prevention of your boiler breaking down. When it comes to repairing boilers and central heating systems it can be extremely costly and time consuming if you wait too long before servicing. A boiler service should be carried out on a regular basis to ensure your boiler is running at maximum efficiency and to ensure that it isn’t in a bad state.

There are a number of signs which you can look out for which will indicate whether your boiler requires a service or that you need repairs and we discuss them in our complete guide to servicing Glow-Worm boilers.

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