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Boiler Types

Need help choosing which boiler is best for your home?

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Deciding which boiler will make an efficient and practical fit with your property and lifestyle can be confusing.

When it comes to choosing the best type of boiler for your home, there are plenty of different factors to consider, but fear not. We are here to help.
Either click on one of the boiler types below for more information or read our Boiler Types Explained section. If all else fails give our team a call 01922 503579.

Boiler Types Explained

There are three main types of condensing gas boilers: combi boilers, system boilers and conventional boilers (also called traditional, regular boilers, open vent or heat only boilers).
Before deciding which of these boiler system to proceed with you should always consider:
The size of the property & and planned extensions
The current boiler type & pipework in your property
The number of showers & the number of bathrooms
The area’s water pressure
The type of property
If the boiler needs to be solar compatible
Each type of condensing boiler has a range of unique properties to suit these requirements.
To help provide you with some insight into which boiler replacement option is the most practical choice for your own home take a look at our guide below. We share how each boiler type works, their advantages and what kind of homes they work best in.

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Combi Boilers

A Combi boiler, also known as a combination boiler, is a type of condensing boiler. 
They are the UK's most popular type of boiler and can be an economical option, as combi boilers only heat the water you use. They are a compact solution perfect for smaller properties.

Energy & Cost Efficient

Since you only heat the water you need, when you need it, combi boilers are very economical and cost efficient to run.

Quick & Easy To Install

As a combi boiler requires no tank, it is one of the more straightforward boiler types to install. 

Hot Water On Demand

With no water tank to heat up, combi boilers can provide an unlimited supply of hot water on demand


As there is no need for a separate water tank, combi boiler systems take up much less space than conventional heating systems.

System Boilers

A System boiler directly heats your central heating system and produces hot water for a storage cylinder. 
They work like a conventional (regular) boiler in that they need to store hot water, but unlike conventional boilers they take their water supply directly from the mains. They are a great solution for busy or large households with more than one bathroom.

Ideal for Homes with Multiple Bathrooms

System Boilers can supply a constant supply of hot water to any number of taps at the same time making them ideal for larger homes.

No Cold-Water Feed Tank

With a system boiler, there is no need for a cold water feed tank, freeing up space and eliminating any worries about leaks or frost damage.

Compatible with Solar Water Heating Systems

System boilers are compatible with solar water heating systems which deliver environmental benefits as well as lower energy bills.

Built-in Components

Most of the components needed for a heating system are already built into a system boiler. This makes installation quicker and neater.

Conventional Boilers

Conventional boilers (also known as regular, standard or heat-only boilers) operate your central heating system through a separate water cylinder and boiler.
The benefits are similar to a system boiler however customers tend to opt for a conventional boiler if their property has an older radiator system, as it might not be able to cope with the higher water pressure that is delivered by system or combi boilers. They’re also a good option where water pressure is low, as other means can be utilised to increase the domestic water performance in the property e.g. a pump.

You Can Use Multiple Taps At Once

As the water comes from a water cylinder, you can use multiple sources such as taps and showers, without experiencing any effect on water pressure or temperature.

Great When Replacing An Older System

When it comes to replacing the heating system in an older property, a regular boiler can be a good option as it requires minimal changes to the pipework if any.

Compatible With Solar Thermal

Conventional boilers are compatible with solar water heating systems for a lower carbon footprint and lower energy costs.

Great For Low Water Pressure Areas

If you live in a low water pressure a conventional boiler may be the best solution as other means can be utilised to increase the domestic water performance in the property e.g. the use of a pump. 

Next Steps

Once you know which boiler type is right for your home, the next decision is which manufacturer and model to go for. Luckily our expert engineers are on hand to help make your decision easier. By providing free in-depth surveys we can suggest the best options for your home.
Established in 2014 to provide a local, quality and affordable boiler installation service. We are a fully insured boiler installation company. Our GasSafe number is 598837.
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