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What is a Combi Boiler and Is It Right for Your Home?

By February 26, 2025No Comments

A combi boiler (short for combination boiler) is one of the most popular heating systems in the UK. If you’re considering replacing your old boiler or upgrading your heating system, you may be wondering if a combi boiler is the right choice for your home.

At BGHC Plumbing and Heating, this month’s blog looks at combi boilers and whether they are right for your home. For information, call us in Glasgow on 01355 201 202.

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What is a Combi Boiler?

A combi boiler is a high-efficiency heating system that combines both central heating and hot water in a single unit. Unlike traditional systems that require a separate hot water cylinder or cold water storage tank, a combi boiler heats water on demand. This means you get instant hot water whenever you need it, without the need to store it in a tank.

How Does a Combi Boiler Work?

A combi boiler operates using an internal heat exchanger that rapidly heats water when needed. Here’s a simple breakdown:

Hot Water Supply

When you turn on a tap or shower, the boiler pulls cold water from the mains.

The water is heated instantly as it passes through the heat exchanger.

Hot water is then delivered directly to your taps or showers without the need for a storage tank.

Central Heating

When the heating is switched on, the boiler heats water and circulates it through radiators or underfloor heating.

A thermostat helps regulate the temperature to keep your home warm.

This on-demand system makes combi boilers efficient, space-saving, and convenient, but it also means they can only supply hot water to one source at a time.

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The Benefits of a Combi Boiler

Combi boilers are widely popular and offer several key advantages. Firstly, they save space. There is no need for a separate hot water cylinder and can be installed in a kitchen cupboard or utility room. They also provide instant hot water whenever you need it, so you won’t be waiting for a tank to heat up.

Additionally, they are more energy efficient. They only heat water when it’s needed, reducing energy waste. Another advantage is that they require less maintenance and fewer repairs. Less pipes means a smaller risk of leaks or breakdowns.

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Our heating engineers can install Amptec electric flow boilers, making sure that your property is heated through the cold winter months.

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We are a fully approved installer of Alpha boilers. Our team can install a huge range of high-efficiency boilers such as Flowsmart combination boilers.

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Contact BGHC Plumbing and Heating

For more information about our central heating and plumbing services, contact BGHC Plumbing and Heating. Call us in Glasgow on 01355 201 202. You can also send us a message via our contact form.

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