— blog
Choosing the right boiler for your home is about more than just heating, it's about comfort, efficiency, and long-term savings. With several types of boilers and fuel systems available, understanding how each one works will help you match the right model to your property and lifestyle needs.
Combi Boilers
Combi (combination) boilers are compact, all-in-one units that provide both central heating and hot water directly from the mains. They don’t require a separate hot water cylinder or cold water tank, which makes them space-saving and easy to install.
Benefits of combi boilers include:
High energy efficiency, often above 90%
Instant hot water with good mains pressure
Quick and simple installation
Perfect for smaller homes or flats with limited space
However, combi boilers may struggle to supply hot water to more than one outlet at the same time, making them less suitable for homes with multiple bathrooms.
System Boilers
System boilers require a separate hot water cylinder but house most of their key components, such as the pump and expansion vessel, within the boiler itself. This makes the installation quicker and neater compared to regular boilers.
System boilers are well-suited to:
Larger households with greater hot water demands
Homes with more than one bathroom
Properties planning to use solar thermal systems in future
The main downside is that stored hot water can cool over time if not used, resulting in some heat loss.
Heat-Only Boilers (Regular/Conventional)
These traditional boilers work with both a hot water cylinder and a cold water storage tank, typically installed in the loft. They’re a good choice for homes with older pipework or lower mains pressure, and are often found in properties with established heating systems.
Key features of heat-only boilers:
Able to supply hot water to several taps at once
Suitable for larger homes with existing radiator systems
Ideal for households already using a hot water tank and storage setup
They do require more space due to the additional tanks and pipework, and water heating isn’t instant as it relies on stored supply.
Space and Layout
Smaller homes often benefit from a combi boiler due to space savings. Larger homes may require a system or heat-only boiler with additional tanks.
Energy Efficiency
Look for an A-rated boiler under the ErP scheme. Condensing boilers are now standard and provide efficiency levels of 90% or more, reducing both bills and emissions.
Hot Water Demand
One bathroom? A combi might be enough. Multiple bathrooms? Opt for a system or heat-only model to maintain performance during peak times.
Budget and Long-Term Costs
Consider installation costs, fuel type availability in your area, and potential changes in energy prices. Gas is typically cheapest, but oil and LPG might be necessary in rural locations.
HeatFire offers expert guidance and professional installations tailored to your home. Call us on 01902 239130 or fill out our contact form to get started with the perfect boiler solution for your needs.
