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Updated: August 20, 2024

To choose the best boiler in Bath, UK, you need to assess factors like efficiency, reliability, and service support. The three primary types are combi, system, and conventional boilers. This blog will provide the information needed to make the right choice.


Combi Boilers vs System Boilers vs Conventional Boilers in Bath uk


Combi Boilers:


Combi boilers are highly efficient, compact heating systems that supply both central heating and hot water as needed. Unlike conventional boilers that require a separate hot water cylinder or tank, combi boilers heat water directly from the mains, ensuring instant hot water when a tap is turned on. They are typically best suited for small to medium-sized homes.


 
How do combi boilers work?


 
Connected to the mains water supply, combi boilers activate a flow sensor when a hot water tap is opened. Cold water from the mains runs through a heat exchanger in the boiler, where it is warmed by gas or electricity, and then the hot water is delivered directly to the tap or shower. For central heating, the boiler heats water that is distributed through radiators or underfloor heating systems.


 
What are the advantages of combi boilers?


 
Space-Saving
With no requirement for a separate hot water cylinder or cold water storage tank, combi boilers are ideal for homes where space is at a premium.
 
Energy Efficient
By heating water on demand, they are highly efficient, reducing the energy wastage that comes with storing hot water.
 
Cost-Effective
Because combi boilers have fewer components, their installation and maintenance costs are typically lower than those of traditional boiler systems.
 
Continuous Hot Water Supply
As long as the boiler is functioning, they provide an endless supply of hot water without the need to wait for a water tank to heat up.
 
Pressure
Delivered at mains pressure, the water can result in a stronger shower and better overall water pressure throughout the home.
 
Quick Installation
Compared to installing a traditional system with multiple components, installation is typically faster and causes less disruption.
 
Modern Technology
Advanced features such as digital controls, programmable timers, and smart home connectivity are common in many combi boilers.
 
Reduced Risk of Freezing
The absence of external tanks or pipes reduces the risk of freezing during cold weather.
 
System Boilers:
Known as a sealed system boiler, a system boiler delivers both heating and hot water to radiators and a separate hot water cylinder. Unlike combi boilers, it requires a hot water storage cylinder but not a cold water tank, which makes it more compact than conventional boilers while accommodating larger homes with greater hot water needs. System boilers are particularly suited for larger homes with several radiators and bathrooms.


 
How do system boilers work?


 
Connected to the mains water supply, system boilers heat water directly using a heat exchanger, similar to other boiler types. This heated water is stored in a separate hot water cylinder until needed. For central heating, the boiler heats water that circulates through radiators or underfloor heating systems. System boilers also feature built-in components like pumps and expansion vessels to ensure proper water pressure and circulation.


 
What are the advantages of system boilers?


 
No Need for Cold Water Tank
System boilers eliminate the need for a separate cold water tank, unlike conventional boilers, thus saving space and making installation easier.
 
High Demand for Hot Water
Capable of supplying hot water to multiple taps simultaneously without significant pressure loss, they are ideal for larger homes with several bathrooms.
 
Fast Installation
Installation is generally faster and easier than for traditional systems, as many components are built directly into the boiler unit.
 
Efficient and Economical
Due to their ability to store hot water and deliver it quickly, system boilers are efficient and often more economical to run, particularly in homes with high hot water demands.
 
 
Integrated Components
With a built-in pump and expansion vessel, the system becomes more compact, which reduces the requirement for extra components and simplifies maintenance and servicing.
 
Reliable Hot Water Supply
Having a hot water cylinder ensures a constant reserve of hot water, which is beneficial during times of high demand.
 
Reduced Risk of Freezing
Without a cold water tank in the loft, the chance of water freezing in winter is minimized.
 
Compatibility with Solar Thermal Systems
The integration of system boilers with solar thermal systems is straightforward, providing an environmentally friendly way to heat water and cut energy costs.
 
Conventional Boilers:
Known as a regular, traditional, or heat-only boiler, a conventional boiler delivers heating and hot water through a system comprising a hot water cylinder and a cold water storage tank, typically situated in the loft. This type of boiler is well-suited for homes with traditional heating systems and substantial hot water needs.


How do conventional boilers work?


Mains water is fed into a cold water storage tank, typically located in the loft. From there, the water flows into a hot water cylinder, where the boiler heats it using a heat exchanger. The heated water is stored in the cylinder until needed for taps and showers. For central heating, the boiler heats water that circulates through radiators or underfloor heating systems. The system is equipped with a pump and controls to regulate the flow and temperature of the water.


What are the advantages of conventional boilers?


High Hot Water Demand
For homes with high hot water demand and multiple bathrooms, conventional boilers are perfect since they can provide hot water to multiple outlets at the same time without a noticeable drop in pressure.
Compatibility with Older Systems
Compatible with older heating systems and existing pipework, they are an excellent option for homes with traditional radiator systems.
Backup Hot Water
A hot water cylinder offers a backup supply of hot water, which is helpful if the boiler fails or during times of high demand.
Efficient for Large Properties
They are perfect for spacious properties with increased needs for heating and hot water.
Easier Maintenance
Maintaining and replacing the separate components (boiler, hot water cylinder, and cold water tank) is often simpler than dealing with more integrated systems.
Pressure Management
These systems manage water pressure effectively, delivering reliable performance in homes with multiple bathrooms.
Compatibility with Renewable Systems
Integration with renewable energy systems, such as solar thermal panels, allows them to cut energy costs and lessen environmental impact.
No Direct Mains Pressure Issues
With hot water supplied from a tank instead of directly from the mains, issues related to varying mains water pressure impacting the hot water supply are minimized.


How to choose the best boiler in Bath, UK ?


Energy Efficiency:
Importance of energy-efficient boilers
Explanation of energy ratings (A+++ to D)
Long-term cost savings
To reduce your carbon footprint, lower energy expenses, and adhere to environmental standards, energy-efficient boilers are key. They use less fuel, leading to both financial savings and diminished emissions.
 
A+++ to A: The highest energy efficiency, indicating that the boiler uses fuel very efficiently.
B to D: Lower efficiency, meaning higher fuel consumption and running costs.
 
High-energy-rated boilers are more efficient, leading to considerable savings and environmental advantages in the long run. Although the initial cost may be higher, investing in an energy-efficient boiler can lower energy bills over time. Government incentives and grants might also help offset the cost of installing such boilers.
 
Size and Space Requirements:
Evaluate the installation area carefully. Combi boilers, being compact, are perfect for tight spaces, whereas conventional and system boilers require more room to accommodate extra components like hot water cylinders and cold water tanks.
 
Combi Boilers: Suitable for smaller homes with limited space and lower hot water demands.
System Boilers: Ideal for medium to large homes with higher hot water needs and space for a hot water cylinder.
Conventional Boilers: Best for larger homes with traditional heating systems and high hot water demands.
 
Heating and Hot Water Requirements:
Consider how many bathrooms, radiators, and your household’s hot water usage when choosing a boiler. A larger capacity boiler is necessary for homes with several bathrooms or high hot water usage.
 
Small to Medium Homes: A combi or system boiler with an appropriate output (kW) will suffice.
Large Homes: A conventional boiler with a high capacity or a system boiler with a large hot water cylinder may be necessary.
 
Budget Considerations:
Combi Boilers: Typically range from £500 to £2,000.
System Boilers: Generally cost between £1,000 and £3,000.
Conventional Boilers: Prices range from £1,500 to £4,000.
High-efficiency boilers may come with a higher initial price, but they offer significant energy savings over time. Look into financing options, government grants, and incentives to help cover the initial cost.
 
Installation and Maintenance:
Ensuring professional installation helps your boiler operate safely and efficiently. Expert engineers can also help you choose the most suitable boiler for your home. Regular maintenance and annual servicing by a qualified professional are vital for maintaining efficiency, prolonging the boiler’s life, and preventing malfunctions. Servicing ensures safety and can detect potential problems before they become significant.

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Best 10  Boiler brands in Bath  (Reviews)


Consider your home’s size, hot water requirements, and budget when choosing a boiler. Top-tier brands like Worcester Bosch and Vaillant provide excellent efficiency and reliability, while budget-friendly brands such as Glow-worm and Vokèra offer good performance at a more economical price. Ensure you have professional installation and regular maintenance to keep your boiler running efficiently and lasting longer.


Worcester Bosch


Models: Greenstar i, Greenstar CDi Compact
Efficiency: High efficiency (A-rated)
Suitable For: Medium to large homes with high hot water demand
Features:
User-friendly controls
quiet operation
excellent customer support
Pros:
Highly reliable and efficient
Extensive warranty options
Excellent customer service
Cons:
Higher upfront cost
Installation can be more complex


 
Vaillant


Models: ecoTEC Plus, ecoTEC Exclusive
Efficiency: High efficiency (A-rated)
Suitable For: Medium to large homes; eco-conscious homeowners
Features:
Advanced technology
quiet operation
eco-friendly
Pros:
Innovative and efficient
Good range of models for different needs
Excellent build quality
Cons:
Premium pricing
Slightly higher maintenance costs
 
Ideal Boilers
Models: Logic+ Combi, Vogue Max
Efficiency: High efficiency (A-rated)
Suitable For: Small to medium homes; budget-conscious homeowners
Features:
Compact design
good warranty options
Pros:
Affordable
Reliable with good customer reviews
Wide availability of parts and service
Cons:
Slightly noisier than premium brands
Warranty terms can be complex


Baxi


Models: Baxi Duo-tec, Baxi 800
Efficiency: High efficiency (A-rated)
Suitable For: Small to medium homes; homes requiring straightforward installation
Features:
Easy installation
reliable performance
Pros:
Good value for money
Easy to install and maintain
Good warranty options
Cons:
Limited high-end features
Can be noisy


Glow-worm


Models: Glow-worm Energy, Glow-worm Ultimate
Efficiency: High efficiency (A-rated)
Suitable For: Small to medium homes; budget-conscious homeowners
Features:
Affordable
user-friendly controls
Pros:
Cost-effective
Reliable and easy to use
Good after-sales support
Cons:
Limited high-end models
Shorter warranty periods


Vokèra


Models: Vokèra Easi-Heat, Vokèra Compact
Efficiency: High efficiency (A-rated)
Suitable For: Small homes; budget-conscious homeowners
Features:
Cost-effective
compact design
Pros:
Affordable
Easy to install
Reliable performance
Cons:
Basic features
Limited high-end options


Ariston


Models: Ariston Clas HE Evo, Ariston Alteas One
Efficiency: High efficiency (A-rated)
Suitable For: Medium to large homes; tech-savvy homeowners
Features:
Stylish design
smart controls
Pros:
Stylish and modern design
High efficiency
Smart home compatibility
Cons:
Higher upfront cost
Can be complex to install


Ferroli


Models: Ferroli Modena HE, Ferroli Bluehelix Tech
Efficiency: High efficiency (A-rated)
Suitable For: Small homes; budget-conscious homeowners
Features:
Compact
affordable
Pros:
Very compact
Affordable
Good efficiency
Cons:
Less well-known brand
Limited availability of parts


Alpha


Models: Alpha E-TEC, Alpha Intec C
Efficiency: High efficiency (A-rated)
Suitable For: Small to medium homes; budget-conscious homeowners
Features:
Good value for money
reliable
Pros:
Affordable
Reliable performance
Good warranty options
Cons:
Basic features
Can be noisy


ATAG


Models: ATAG iC Economiser Plus, ATAG iS System
Efficiency: Very high efficiency (A+++ rated)
Suitable For: Large homes; environmentally conscious homeowners looking for top efficiency
Features:
Extremely efficient
durable
Pros:
Extremely high efficiency
Long-lasting and durable
Excellent warranty
Cons:
High upfront cost
Limited availability

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What size boiler do I need in Bath?


It is vital to choose the appropriate boiler size for your home to ensure efficiency, comfort, and cost-effectiveness. The size, often indicated in kilowatts (kW), is influenced by factors including the size of your home, the quantity of radiators, the number of bathrooms, and your hot water demands.
 
Small Homes/Apartments: Combi boiler (24-27 kW) or system boiler (9-18 kW)
Medium Homes: Combi boiler (28-34 kW) or system boiler (18-26 kW)
Large Homes: Combi boiler (35-42 kW) or system boiler (27-40 kW)
For accurate boiler sizing, it is highly recommended to have a professional heating engineer perform a heat loss calculation. This assessment takes into account your home’s specific characteristics, including insulation, window types, and other factors.

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How much does a boiler cost in Bath?


The price for a new boiler in Bath, including installation, generally falls between £1,500 and £4,000, influenced by the boiler type, model, and the complexity of the installation.
 
Combi Boilers
Low-End Models: £500 – £1,000
Mid-Range Models: £1,000 – £1,500
High-End Models: £1,500 – £2,500
System Boilers
Low-End Models: £600 – £1,000
Mid-Range Models: £1,000 – £1,800
High-End Models: £1,800 – £3,000
Conventional Boilers
Low-End Models: £700 – £1,200
Mid-Range Models: £1,200 – £2,000
High-End Models: £2,000 – £4,000


Combi boiler installation in Bath


As a leading installer of combi boilers in Bath, Let’s Heat is celebrated for its exceptional customer service and expert workmanship. Their focus on the latest energy-efficient combi boilers guarantees warmth, comfort, and cost-effectiveness for your home.
 
At Let’s Heat, our expert engineers offer tailored solutions to fit your individual requirements, guaranteeing a seamless installation. We provide competitive rates, fast turnaround times, and a strong commitment to quality. Choose Let’s Heat for reliable and efficient combi boiler installations in Bath, and enjoy a comfortable home throughout the year.


System boiler installation in Bath


As a top-tier provider of system boiler installations in Bath, Let’s Heat is celebrated for its superior quality and commitment to customer satisfaction. Specializing in cutting-edge system boilers, Let’s Heat ensures your home receives effective and powerful heating and hot water solutions.


Best Boiler Deals From Installers Near Bath


At Let’s Heat, we are proud to offer the top boiler deals in Bath. Our promotions include discounts on a diverse selection of high-efficiency combi and system boilers, ensuring you discover the perfect match for your home’s heating and hot water needs.


Who Should You Trust for Boiler Installations in Bath?


In Bath, Let’s Heat stands out for its dependable and trustworthy boiler installation services. Our commitment to high standards is showcased by our experienced team of engineers, who offer years of expertise on every project.

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Boiler replacement vs repair in Bath?


For boiler issues, Let’s Heat in Bath offers expert support to help you decide whether to repair or replace your system. Our experienced team assesses your boiler’s condition and gives clear, professional advice tailored to your specific situation.
Boiler Replacement:
When dealing with an old, inefficient, or unreliable boiler, replacement may be the most practical solution. Modern models offer better energy efficiency, reduced operating costs, and upgraded features.
 
Upgrading to a new boiler can improve performance, cut down on energy costs, and reduce repair needs. At Let’s Heat, we provide a range of high-efficiency boilers with competitive pricing and professional installation. Our team takes care of everything from selecting the right model to completing the installation, ensuring a smooth process and enhanced comfort in your home.
 
Boiler Repair:
When facing relatively new or minor issues, repairing your boiler can be the most cost-effective choice. Our team efficiently diagnoses and fixes problems to restore your boiler’s performance. Repairs can extend the life of your boiler and tackle specific issues without the need for a complete replacement. Trust Let’s Heat’s skilled engineers for timely and reliable repairs.
 
Our thorough inspections help us identify the underlying cause of your boiler problems, and we carry out high-quality repairs to keep your system running smoothly. Whether you choose to repair or replace, we provide top-notch workmanship and prioritize customer satisfaction. Being a trusted Bath company, we understand the specific needs and challenges of homes in the area.

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Factors to Consider When choosing your boiler

FAQs

Who are the top 5 boiler manufacturers?

The top 5 boiler manufacturers are Worcester Bosch, Vaillant, Viessmann, Ideal Boilers, and Baxi.

How do I choose a boiler?

Consider your home size, hot water demand, boiler type (combi, system, or conventional), energy efficiency, warranty, brand reputation, and budget.

Which boiler is cheaper to run?

Combi boilers are generally cheaper to run because they only heat water on demand.