Glow-worm is a UK manufacturer which has been producing heating solutions for more than 80 years. The company was founded in Derbyshire in 1934 and today is owned by the Vaillant Group, Europe’s second-largest heating company.
Glow-worm manufacture a wide range of Combi, System and Regular gas fired boilers with several heating control options.
Glow-worm Product Range
You can find a more detailed list of products in our guide to Glow-worm efficiency ratings.
Popular Combi Boilers
Glow-worm’s combi boilers include an aluminium heat exchanger which is designed to last longer and reduce your energy usage. The heat exchanger is also incredibly quiet and the flueing option means you have greater flexibility over where you install it in your home. The Grundfos modulating pump also helps to reduce energy usage.
The Easicom and Ultimate include and a bright, easy-to-read, LCD display. They are also compatible with the smart MiGo app based control by Glow-worm which enables you to control your heating from a smartphone or tablet.
| Model | Available Outputs | Efficiency Rating | Warranty | Dimensions |
|---|---|---|---|---|
| Energy | 25, 30 or 35kW | A | Up to 15 years* | 700 x 390 x 280mm |
| Ultimate3 | 30 or 35kW | A | 5 years* | 740 x 418 x 300mm |
| Easicom3 | 35kW | A | 2 years* | 890 x 470 x 561mm |
*When installed by a Glow-worm Club Energy installer.
Popular System Boilers
System boilers from Glow-worm feature a modulating Grundfos pump which helps to reduce your energy bills and is ultra quiet when operating. They also feature a high quality, aluminium heat exchanger.
Both the Easicom and Ultimate include and a bright, easy-to-read, LCD display. They are also compatible with the MiGo app based control.
| Model | Available Outputs | Efficiency Rating | Warranty | Dimensions |
|---|---|---|---|---|
| Energy | 12, 15, 18, 25 or 30kW | A | Up to 15 years* | 700 x 390 x 280mm |
| Ultimate3 | 25kW | A | 5 years* | 740 x 418 x 300mm |
| Easicom3 | 25kW | A | 4 years* | 740 x 418 x 300mm |
*When installed by a Glow-worm Club Energy installer.
Popular Regular Boilers
Regular boilers are particularly suitable for homes with a high hot water demand and is compatible with Glow-worm’s range of hot water cylinders. The Ultimate and Easicom are compatible with the Migo smart control.
| Model | Available Outputs | Efficiency Rating | Warranty | Dimensions |
|---|---|---|---|---|
| Energy | 12, 15, 18, 25 or 30kW | A | Up to 15 years* | 600 x 375 x 280mm |
| Ultimate3 | 25kW | A | 5 years* | 600 x 375 x 280mm |
| Easicom3 | 25kW | A | 4 years* | 600 x 375 x 280mm |
*When installed by a Glow-worm Club Energy installer.
Popular Discontinued Boilers
Below you can find more information about some of Glow-worm’s most popular discontinued models (ideal if you want to compare your current boiler to their new offerings).
Glow-worm Heating Controls
MiGo personal heating assistant
- Remote heating and hot water control via smart device
- Automatically learns your energy needs
- Internet weather compensation
Climapro₂ RF control
- Wireless programmable room thermostat
- Wall mounted or portable around the home
- Two channel wireless programmable room thermostat
- Central heating control system
Climapro₁ control
- Available wireless and wired
- Annual service reminder function
- Automatic update for summer and winter
- Weather compensation ability (when used with optional outdoor sensor)
Climastat Thermostat
- Extra low voltage
- Simple & discreet 2 wire connection
230v Room Thermostat
- Simple analogue control of room temperature
- Compatible with all Glow-worm boilers with the exception of Ultracom₂ 35 store
Prices
Most Glow-worm boilers cost between £500 – £1,000 although some of the more powerful models can reach in excess of £1,400. Comparing quotes is the best way to find a competitive price for a new boiler; we recommend finding at least 2 or 3 to be sure you’re getting an accurate representation of the market.
Guarantee
Glow-worm warranties vary from 2-5 years in general. However, it’s possible to purchase a Glow-worm boiler with a very impressive 15 year guarantee. It will need to meet certain criteria including being installed by a Glow-worm Club Energy installer.
Why Choose Glow-worm?
Glow-worm are a great choice for those on a budget as their boilers fall at the lower cost end of the spectrum. They offer A rated efficiencies and a range of impressive heating controls to help you save even more money on your heating bills. In addition, if your installation meets their requirements you could benefit from a 15 year warranty which should give you real peace of mind for the foreseeable future.
For new boiler installations visit Boiler Guide to request quotes from independent local and regional heating engineers.
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