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What boiler do I need for my home?

Your boiler is something that you use every day, probably without you even realising it. Therefore, it is important to ensure that the boiler you choose is perfect for your home. Whether your boiler is due an upgrade, keeps breaking down or you just want to increase your boiler’s efficiency, Glow-worm is here to help!

With three different boiler types available, we’ll give you all the information you need to choose the right boiler for you.

We’ll cover the following topics:

What are the different types of boilers are available?

What type of boiler do I need?

What are the different types of boiler?

Glow-worm offers three main boiler types, so whether you live in a flat, terraced house or a detached property , we will have the boiler type best suited for you!

The three main types of boiler are:

  • Combi boilers
  • Regular boilers
  • System boilers

Combi boilers

Combi boilers known for their compact size and energy-efficiency, produce heating and hot water instantly, making them the most popular boiler choice in the UK.

A combi boiler will save on space as they do not require a hot water cylinder or tank. as they are on-demand system. However, this can mean that they only produce hot water for one location at a time so may not be the best boiler choice if you have a high hot water demand with multiple occupants.

Combi boilers are ideal for:

• Smaller homes

• Homes with less heating demand

• Homes with 1 bathroom


System Boilers

System boilers are fitted with an additional hot water cylinder, so your home always has a constant hot water supply and a comfortable temperature. The hot water cylinder can be fitted in your airing cupboard meaning they do take up more space than a combi boiler.

System boilers are more suited to homes with a low flow rate or have older-style radiators installed.

System boilers are best suited for homes with:

  • Multiple bathrooms
  • Regular water pressure
  • Higher heating demand

Check out our system boiler range if it's requirements best accompany your living situation.


Regular boilers

Regular boilers, also known as conventional or heat-only boilers, are boiler systems that store water in a tank to provide hot water and central heating at any time.

Regular boilers are typically best suited for larger homes with a high hot water demand. This is because you need two additional tanks, a cold-water tank (usually located in the loft) and a hot water cylinder (usually in an airing cupboard).

The additional tank makes this boiler type beneficial for homes that have a lower flow rate or water pressure.

Regular boilers and system boilers need a similar kW boiler depending on how many bedrooms the house has:

  • 2 bedrooms – 12-18kW
  • 3 bedrooms- 18-24kW
  • 4 bedrooms- 25-30kW
  • 5+ bedrooms- 30+kW

Check out our regular boiler range if this matches your home the most.

What type of boiler do I need?

When choosing between the three different types of boilers, it is important to consider their suitability with your requirements. Here are a few questions to think about:

Looking for a new boiler for your home?

If you’re still not sure what boiler you need or you’d like some advice on the different types of boiler and which one is suitable for your heating needs, contact your local Glow-worm installer. Our experienced team can advise you on the right type and size of boiler for your home, as well as installing, commissioning and servicing the heating system for you.