Choosing the right boiler for your home is one of the most important decisions you can make when it comes to comfort, energy efficiency, and cost savings. With so many options available, it can feel overwhelming to decide which type of boiler is best suited for your property.
In this complete guide, we’ll explain the different types of boilers, how they work, the pros and cons of each, and when it’s best to call 100% Plumbing for professional installation.
Why choosing the right boiler matters
Your boiler isn’t just a heating system—it’s the heart of your home’s comfort. It provides central heating and hot water, directly impacting your energy bills and long-term maintenance costs.
The right boiler ensures:
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Consistent hot water supply.
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Lower energy consumption.
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Reduced carbon footprint.
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A comfortable home all year round.
If you’re unsure which option fits your needs, our Central Heating experts at 100% Plumbing are here to help.
The main types of boilers
1. Combi boilers (Combination boilers)
How they work:
Combi boilers heat water directly from the mains, providing both central heating and hot water without a separate storage tank.
Best for:
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Small to medium-sized homes.
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Properties with limited space.
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Homes where only one or two taps are used at once.
Pros:
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Compact design.
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Energy-efficient (no heat loss from a water tank).
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On-demand hot water.
Cons:
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Limited water flow for multiple taps at once.
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May not suit larger homes with high hot water demand.
Our Hot Water Systems services include expert combi boiler installations and upgrades.
2. System boilers
How they work:
System boilers require a hot water storage cylinder but not a cold-water tank. They deliver strong water pressure and are suitable for homes with multiple bathrooms.
Best for:
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Medium to large homes.
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Properties with more than one bathroom.
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Families with high water demand.
Pros:
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Strong water flow.
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Ideal for simultaneous use of multiple taps.
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More energy-efficient than traditional boilers.
Cons:
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Requires space for a hot water cylinder.
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Hot water is not instant—it can run out if the cylinder is empty.
If you’re upgrading your heating system, our Gas Installations team ensures safe and efficient system boiler setups.
3. Conventional boilers (Regular boilers)
How they work:
Conventional boilers use both a hot water cylinder and a cold-water storage tank, typically installed in the loft. They’re the traditional choice for older properties.
Best for:
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Large homes with high hot water demand.
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Properties with old radiator systems.
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Homes where water pressure is low.
Pros:
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Works well with traditional heating systems.
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Can supply hot water to multiple bathrooms at once.
Cons:
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Takes up more space (tank + cylinder).
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Less efficient compared to modern alternatives.
This type of system is often recommended during full Domestic Water Supply upgrades.
4. Electric boilers
How they work:
Instead of gas, electric boilers use electricity to heat water. They’re compact and can be installed almost anywhere.
Best for:
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Small properties or flats.
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Homes without a gas supply.
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Eco-conscious homeowners planning renewable integration.
Pros:
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Easy installation.
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No flue or gas safety checks required.
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Can be paired with solar energy.
Cons:
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Higher running costs compared to gas.
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May not be suitable for larger homes with high demand.
Pairing an electric boiler with Solar Power can significantly reduce operating costs.
5. Biomass boilers
How they work:
Biomass boilers burn wood pellets, chips, or logs instead of gas or electricity. They’re considered a renewable heating source.
Best for:
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Eco-conscious homeowners.
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Rural properties with storage space.
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Homes aiming to reduce carbon footprint.
Pros:
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Sustainable and renewable energy.
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Can reduce heating bills if sourced efficiently.
Cons:
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Requires large storage space.
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Higher upfront installation costs.
Our experts can assess whether biomass solutions fit your property as part of a full heating upgrade.
Key factors to consider when choosing a boiler
When deciding what type of boiler you need, think about:
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Size of your home → Small flats may need a combi; larger homes may need system or conventional boilers.
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Hot water demand → Families with multiple bathrooms need stronger systems.
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Available space → Consider whether you can fit a cylinder or tank.
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Energy efficiency goals → Newer boilers are much more efficient and eco-friendly.
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Fuel availability → Do you have access to mains gas, or will you need an electric/renewable option?
Our Central Heating specialists can carry out a full property assessment to recommend the ideal system.
Boiler efficiency and energy savings
Modern boilers are far more energy-efficient than older systems. Replacing a 10–15-year-old boiler can save you up to 30% on energy bills.
For independent guidance on energy-efficient heating, you can visit the Energy Saving Trust, a trusted authority on home energy solutions.
FAQs about choosing a boiler
What type of boiler is best for a small apartment?
A combi boiler is ideal because it saves space and provides instant hot water.
How long does a boiler last?
Most boilers last 10–15 years with proper maintenance.
Do I need a gas supply for all boilers?
No. Electric and biomass boilers work without gas.
Can solar panels work with my boiler?
Yes, solar thermal systems can supplement hot water, reducing energy costs.
How do I know what size boiler I need?
The right size depends on the number of bathrooms, radiators, and hot water demand. A professional assessment is recommended.
Call the experts today
Choosing the right boiler doesn’t have to be complicated. At 100% Plumbing, we help homeowners find the perfect solution for their property, budget, and lifestyle.
👉 Contact us today for professional advice and expert installation of your new boiler.
