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Glow-worm Boilers
City Plumbing sells a good selection of boilers from renowned brand Glow-worm. A well-known British company, Glow-worm is part of the successful Vaillant Group, which is one of the largest heating companies in Europe. With a superb long history of producing reliable and efficient boilers the Glow-worm brand features a range of domestic gas boilers, and all at some of the most competitive prices to suit all budgets.
What Types of Glow-worm Boilers Are Available?
Glow-worm manufactures three main types of gas boilers, designed to suit different household needs and property types. Each type has a number of models and ranges within it, with varying heat outputs and features.
The three main types of Glow-worm boilers are:
- Combi Boilers: This is the most popular type of boiler in the UK. A combination (combi) boiler provides both central heating and hot water directly from a single, compact unit. There's no need for a separate hot water cylinder or a cold water storage tank, making them ideal for homes with limited space.
Features: They provide hot water on demand, which can be energy-efficient.
Common Ranges: Glow-worm's combi boiler ranges include the Energy series, Ultimate3, and Compact.
- System Boilers: These boilers provide central heating and also require a separate hot water storage cylinder. Unlike a regular (heat-only) boiler, a system boiler has a number of heating components built into the unit, which can make installation quicker and easier.
Features: They're a good choice for larger homes with multiple bathrooms, as they can supply hot water to several taps at once. They don't require a cold water storage tank in the loft.
Common Ranges: Glow-worm's system boilers are primarily found in the Energy and Ultimate3 ranges.
- Regular Boilers: Also known as "heat-only" or "conventional" boilers, these are typically found in older central heating systems. They require both a hot water storage cylinder and a cold water storage tank (usually in the loft) to function.
Features: They're suitable for large homes with high hot water demand and for properties in areas with low mains water pressure, as the tank provides a good supply of water.
Common Ranges: Glow-worm's regular boilers are available in the Energy and Ultimate3 series.
Note: Most modern Glow-worm boilers are highly energy-efficient, with many models having an ErP A-rating. They also offer smart control compatibility, allowing homeowners to use smart thermostats like Google Nest or Hive.
Are Glow-worm Boilers Easy to Install?
While most Glow-worm boilers are designed with installer-friendly features, the overall ease of the job is highly dependent on the type of installation. A simple replacement can be very quick, but a system upgrade or relocation will be a more involved process.
Whether it’s a like-for-like boiler swap, an upgrade of the current boiler system,or a relocation of the boiler, all boiler installations must be carried out by a Gas Safe registered engineer. Installing a gas boiler yourself is illegal and extremely dangerous. It will also void the manufacturer's warranty.
Glow-worm has a network of certified "Club Energy" installers who are specifically trained to install and service their products. Using one of these installers can often get you an extended warranty on your boiler.
The Key Features of Glow-worm Boilers
Glow-worm boilers are known for offering a balance of affordability, reliability, and modern technology. Here are some key features that define their boiler range:
1. High Energy Efficiency
A primary feature of modern Glow-worm boilers is their high energy efficiency.
- ErP A-Rating: Most of their current models, including the popular "Energy" and "Ultimate" ranges, are A-rated for efficiency, meaning they operate at over 90% efficiency. This helps reduce energy bills and carbon footprint.
- Condensing Technology: They utilise condensing technology, which reclaims heat from the exhaust gases (flue) that would otherwise be wasted, further increasing their efficiency.
- Modulating Pump: Many models feature a modulating Grundfos pump. This smart component automatically adjusts its speed to match the heating demand, consuming less electricity and reducing running costs.
2. Smart Controls and Connectivity
Glow-worm has invested in modern controls to give homeowners more power over their heating.
- MiGo Link Gateway: Their boilers can be connected to the internet using the MiGo Link gateway, allowing for remote control via a smartphone app.
- Smart Thermostat Compatibility: The boilers are compatible with popular smart thermostats like the Glow-worm MiGo Select, as well as third-party options like Google Nest and Hive.
- Weather Compensation: When paired with an outdoor sensor, the boiler can use weather compensation to adjust its output based on the outside temperature, optimising performance and saving energy.
3. Compact and Installer-Friendly Design
Glow-worm boilers are designed with both the homeowner and the installer in mind.
- Compact Dimensions: Many of their combi boilers are small enough to be installed inside a standard kitchen cupboard, which is a significant advantage for homes with limited space.
- Flexible Flue Options: They often come with flexible flue options (top or rear), making them easier to install in a variety of locations.
- Automotive-Grade Heat Exchanger: Glow-worm uses a durable and high-quality aluminium heat exchanger, which is designed to be lightweight, easy to maintain, and resistant to corrosion.
4. Generous Warranties
Glow-worm offers a strong warranty package, especially for boilers installed by their certified partners.
- Standard Warranty: The standard warranty period varies by model, but can be up to 7 years.
- Extended Warranty: You can get an extended warranty of up to 10 years on certain models when the boiler is installed and registered by a Glow-worm Club Energy installer and a Glow-worm Power Filter is fitted.
- Terms and Conditions: To keep the warranty valid, the boiler must be registered within 30 days of installation and serviced annually by a Gas Safe registered engineer.
5. Quiet Operation
Many homeowners choose Glow-worm for their quiet operation. The combination of a well-engineered heat exchanger and a modulating pump results in a boiler that operates with a low decibel rating, making it less disruptive, especially when installed in living areas or near bedrooms.
How Much Does a Glow-worm Boiler Cost?
The cost of a Glow-worm boiler can vary significantly depending on several factors, including the boiler model, its heat output (kW), and the complexity of the installation. Yet, this is the one brand that offers superb low pricing on its range of boilers.
It's important to distinguish between two key costs:
- Supply-only cost: The price of the boiler itself from City Plumbing.
- Installed cost: The total price, which includes the boiler, all necessary components, and the labour fee for a Gas Safe registered engineer.
1. Supply-Only Costs
Glow-worm boilers are generally considered a more affordable, budget-friendly option compared to premium brands like Worcester Bosch.
Prices for the boiler unit itself typically range from around £550 to £1,600. The Glow-worm Micracom and Compact Combi boilers promote a cost-effective lower end starting price around the £550 mark, while Glow-worm Energy7 models are slightly more expensive around the £1500 mark.
2. Total Installed Costs
Including everything required for a working system, the total cost is made up of the boiler price, labour, and additional materials.
The average total installed cost for a Glow-worm boiler in the UK is generally in the range of £1,800 to £2,800.
Here's a breakdown of what influences the total price:
- Type of Installation:
Simple "Like-for-Like" Swap: This is the cheapest option, typically costing between £1,800 and £2,300. This is a direct replacement of a similar boiler in the same location, with minimal changes to pipework.
Boiler Relocation: Moving the boiler to a new location significantly increases the cost due to extensive labour and new pipework. This can add £500 to £1,000+ to the total.
System Conversion: Converting a regular or system boiler to a new combi boiler is a major job. It involves removing old tanks and cylinders and re-routing pipework. This is the most expensive type of installation, with prices typically starting from around £2,500 and going up to £3,500+.
- Additional Components and Labour:
Flue Kit: A flue is required to vent gases outside. Prices vary depending on the length and type of flue needed.
Magnetic Filter: A filter is highly recommended to protect the new boiler from sludge and debris in your heating system. This is often required to get the full warranty.
Power Flush: If your existing heating system is old and dirty, a power flush is recommended to clean it out before installing the new boiler. This can add £300 to £750 to the total cost.
Controls: The cost of a new thermostat, especially a smart thermostat, will be added to the total.
Scaffolding: If the flue is difficult to access, scaffolding may be needed, which adds to the cost.
- Installer Rates: Labour costs can vary widely depending on your location and the specific installer. Quotes from national companies may be higher than those from local, independent Gas Safe registered engineers.
For an accurate price, it's essential to get a fixed-price quote from a qualified Gas Safe registered engineer who has surveyed your property and assessed the specific requirements of the installation.
What Types of Glow-worm Boilers Does City Plumbing Sell?
As the home of heating, City Plumbing sells a superb range of Glow-worm boilers to suit all requirements. With a vast selection of choices, from boiler only, to boiler with flue and or filter, our Glow-worm selection of boilers offers a range of heat output, BTU/h and dimensions, alongside a fantastic assortment of prices to suit every budget.
Buy Glow-worm Boilers at City Plumbing
City Plumbing is the go-to for local plumbers’ merchants, catering to all homeowners and installers working in the trade.
Proud of our superb Trustpilot rating, we can offer you a wealth of knowledge from four-plus decades of experience, and some of the most outstanding plumbing and heating products and advice to help you get the job done.
With over 350 branches nationwide, our prices remain the most competitive to further ensure you get all your projects finished on budget.
Offering several Delivery Options and a Click & Collect service, if you’re looking for a City Plumbing near me, type your postcode into our branch locator to find your nearest City Plumbing Supplies.
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