Are you looking for a modern, compact combi boiler that’s also great value for money?
One of the options you may already be considering is the Glow-worm Energy Combi, which is one of the newer ranges of boilers from the budget brand.
These boilers are popular with my customers, mainly because they provide great energy efficiency and reliability without breaking the bank!
However, you’re probably going to want to know a bit more about these boilers before making a decision – including whether or not any of them are suited to your home set-up.
So without further ado, let’s take a closer look below:
Introduction
For a budget range, Glow-worm are one of the most highly recommended brands on the market right now, mainly because they’re part of the Vaillant group – a premium brand boiler manufacturer. All of their boilers are made in Derbyshire, UK.
TIP: For more information about the brand, read my blog on why Glow-worm gets the Superwarm stamp of approval.
The Energy Combi range comes with a light, modern design, a good variety of outputs, and advanced features – plus, they come with plenty of easy installation options, too!
Output and flow rates
Below you’ll find the heating and hot water outputs for these boilers, along with the flow rates you can expect to your taps:
- Glow-worm Energy Combi 25kw: This boiler provides 25kw to the central heating, and 25.7kw to the hot water, with a flow rate of 10.4 lites per minute (35 degrees Celsius)
- Glow-worm Energy Combi 30kw: This boiler supplies 30kw to the central heating, and 30.6kw to the hot water, with a flow rate of 12.5 litres per minute (35 degrees Celsius)
- Glow-worm Energy Combi 35kw: This boiler can give you 35kw to the central heating and 35.7kw to the hot water, with a flow rate of 14.4 litres per minute (35 degrees Celsius)
Size and special features
All the boilers in the Energy Combi range measure in at 700mm x 390mm x 280mm and are light and compact – you’ll probably find they can fit in your standard-sizedkitchen cupboard, but can be installed in pretty much any situation.
The Energy Combi range has top and rear flue options to give you more choices of where to install your new boiler, along with a bright, modern LCD display.
Guarantee
These excellent boilers come with a free 5-year warranty and when fitted by a Club Energy installer (can be upgraded to 7, 10 or 15 years) and this covers both parts AND labour – and no extra call-out charges. The company also has dedicated engineers, so you know your new boiler will be in safe hands.
Ideal for
Now, let’s get a better idea of the type of home each of these boilers is best suited to, so you can decide if any of them are right for you:
- Glow-worm Energy Combi 25kw: Ideal for small house or apartment with 4-9 radiators and a shower (not ideal for baths)
- Glow-worm Energy Combi 30kw: Best suited to to a small to medium house or apartment with 9 – 14 radiators, a shower and a bath
- Glow-worm Energy Combi 35kw: Great for large homes with 12- 18 radiators, two showers (or a high pressure shower) and a bath. Will fill a deep cast iron bath
ERP rating
Great news! All of the boilers in this range are ERP rated A, for maximum energy efficiency and a lower carbon footprint.
Conclusion
I hope this review has given you a better idea of the Glow-worm Energy Combi range, and by now you should know exactly the type of outputs and flow rates you can expect for your home. However, don’t forget to get a qualified engineer to measure your home’s heat loss just to make sure!
What do you think of the Glow-worm Energy combi boiler range?

Select high quality Boiler products varied in Function, Fuel and Installation from certified Chinese Steam boiler factory.