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Looking for a new boiler?

Your guide to replacing your boiler

  • What boiler are you looking for?
  • Benefits of replacing your boiler
  • How to find your installer
  • Upgrade your heating controls too

Replacing your boiler: What to know

Replacing your boiler is a opportunity to improve your home’s comfort, efficiency, and energy savings. With today’s advanced heating solutions, upgrading your gas boiler means enjoying a cosy and warm home while saving on energy costs. Whether you’re looking for a quieter system or one that’s better for the environment, we’ll help you find the perfect fit for your needs.

For over 90 years, we’ve been trusted to deliver heating solutions that combine quality, reliability, and performance for every home. Our gas boilers are designed to maximise home efficiency while keeping your home comfortable and dependable year after year. With an ErP rating of ‘A,’ every boiler is highly efficient, helping you save money on energy bills without compromising on warmth or reliability.

Choosing the right boiler doesn’t have to be complicated! Here are a few simple things to keep in mind:

  • Do you want a like-for-like replacement, or are you looking for a new heating system?
  • Think about your hot water needs — how much do you use?
  • Check if your space is ready for the new model.
  • Find one that fits your budget without compromising on comfort.

View our boiler range

Our boiler range is designed so that there is a system that meets the heating demands of your home regardless of size. If you need help choosing your new Glow-worm boiler read our What boiler do I need for my home or contact your local myREWARDS installer, who can advise you on the right boiler for your home.

Combination boilers

Combi boilers are a convenient all-in-one solution for smaller households with low hot water demands (such as one shower or bath), that would benefit from hot water almost instantly and a perfectly heated home.

 

System boilers

These boilers are fitted with a cylinder to provide steady hot water and a comfortable home temperature. These boilers are perfect if you have a high water demand from multiple sources at once.

 

Regular (open vent) boilers

Offering heating comfort and hot water for larger households with multiple bathrooms and high hot water demand.

 

The benefits of replacing your boiler

Replacing your gas boiler boosts energy efficiency, whilst offering cosy warmth. A modern boiler uses less energy, helping to lower your energy bills. Plus, newer models offer quieter operation and improved reliability, so your home stays warm and worry-free year-round.

Getting your Glow-worm boiler is easy!

Here’s how simple the process is:

f you’re not sure which boiler is the best fit for your home, take a moment to explore range of boilers. You’ll find something designed to match your needs, whether it’s efficiency, size, or budget.

Use of upgrade your heating tool to find your local Glow-worm installer. You can either search by postcode for your nearest installer or fill out the form and we'll put you in touch with an installer. Your installer will visit your home and carry out a quick assessment of what work will be required. They will also supply a no-obligation quote.

Once you’re happy with the quote, your installer will arrange a time and date so they can come to your home and fit your new Glow-worm boiler.

After your Glow-worm boiler is installed, ensure it’s registered online via our myGlow-worm Web online service portal. You can do this yourself or ask your installer to handle it for you.

Extended guarantee available

Glow-worm boilers are designed to be reliable and come with a minimum guarantee of 5 years. However there is the option to extend up to 10 years.*

Your boiler guarantee covers any repairs or system-related defects. You can register your boiler online on myGlow-worm Web or ask your myREWARDS installer to do it on your behalf.

*Please note: Our extended guarantees are available when installed and registered by a myREWARDS installer.

Upgrade your system with our heating controls

If you want to get the most out of your boiler, you can upgrade your system by adding a smart heating control or thermostat, so you really take charge of your homes heating.

We recommend pairing your Glow-worm boiler with one of our Glow-worm smart controls, as it allows you to control your home through your smart home via an internet connection. The controls let you tailor your heating and hot water to improve your home's energy efficiency.

View our heating controls or read 'What heating control is right for my home'.

MiSet

Fuss-free heating control

  • Semi-touch interface allows fuss-free heating at your fingertips
  • Time programming assistant helps you set your timer in a few simple steps
  • Boiler modulation ensures peak performance and optimum efficiency for your Glow-worm heating system

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MiGo Select

Flexible, wireless control

  • Wireless remote control with room temperature modulation  
  • Set the target room temperature  
  • Room air humidity measurement  
  • Weather-compensated operation possible when installed with the MiGo Link Gateway

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MiGo Link Internet Gateway

Make your heating control smarter

  • Link your boiler and thermostat for easy app-based heating control.
  • Add smart capabilities to your existing traditional thermostat
  • Connect to your Amazon Alexa or Apple HomeKit smart home system

Find your local Glow-worm installer

Find your local Glow-worm installer

Each home's heating requirements differ. Get in touch with your local Glow-worm installer who will be able to find the best solution for your property. Our installers are fully trained and certified to install, repair, and service Glow-worm heating systems. They can provide technical advice or a no-obligation quote when they receive more information about your property.

Find out more

What is a combi boiler and how does one work?

Read more

What is a system boiler and how does one work?

Read more

What is a regular boiler and how does one work?

Read more