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Last updated: 6th March, 2024


Alpha Combi Boiler Costs

Alpha Combi Boiler Costs

Key takeaways

  • Alpha combi boilers are a cost-effective choice for energy-efficient home heating.
  • Prices fluctuate based on model features, with the E-Tec range offering varying outputs for different home sizes.
  • Installation costs and additional expenses should be factored into the overall investment for a new boiler.

The price of an Alpha combi boiler is contingent upon several factors, such as the specific model and its associated features.

In the current climate of rising energy costs and increased environmental awareness, homeowners are keen to find heating solutions that strike a balance between efficiency and affordability. Alpha combi boilers have emerged as a significant contender in the UK market, widely recognised for their compact design and energy-saving potential. 

The E-Tec range, in particular, appeals to a broad spectrum of households, from modest one-bedroom flats to more spacious four-bedroom homes, due to its versatility and cost-effectiveness.

The price of an Alpha combi boiler is contingent upon several factors, such as the specific model and its associated features. For instance, the Alpha E-Tec Plus NX is renowned for its extended warranty period, which adds value beyond its initial purchase price, while the E-Tec and Evoke NX models are appreciated for their different outputs and flow rates to suit various domestic requirements. 

When considering an Alpha combi boiler installation, potential buyers must also account for additional costs including installation fees and any supplementary accessories that may be needed to ensure optimal boiler performance and adherence to safety standards.

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Understanding Alpha Combi Boilers

Alpha combi boilers are a prime example of efficient, modern heating solutions in the UK market. They offer a blend of reliability, energy efficiency, and compact design, making them a popular choice for homeowners.

Overview of Combi Boilers

Combi boilers, or combination boilers, are high-efficiency water heaters and central heating units. They do not require a separate hot water storage tank, which means they save space and can provide hot water on demand.

The Alpha Brand and Its Position in the UK Market

Alpha Heating Innovation is a reputable boiler manufacturer in the UK. They are known for producing combi boilers that are both cost-effective and reliable. In the ever-competitive UK market, Alpha stands out with its commitment to quality and efficiency.

Alpha Boiler Models Overview

Notable models from Alpha include the E-Tec and Evoke, with outputs ranging from 28kW to 38kW. These models feature durable components, such as a stainless steel heat exchanger, which is pivotal for both efficiency and longevity.

Benefits of Installing an Alpha Combi Boiler

Installing an Alpha combi boiler provides numerous advantages:

  • Space-saving: due to their compact size.

  • Energy efficiency: reduces heating bills.

  • Reliable hot water supply: without the need for a separate cylinder.

  • Extensive warranty: offers peace of mind.

Comparison with Other Boiler Types

Compared to system boilers and heat-only boilers, Alpha's combi boilers cut down on the need for additional space for tanks and cylinders. They offer a more streamlined alternative to traditional heating systems, which often involve complex installation and increased space requirements.

Energy Efficiency and Environmental Impact

Alpha combi boilers are designed to operate at high energy efficiency levels, typically condensing boilers that utilise fuel more effectively—whether gas, oil, or LPG—than conventional boilers. This makes them not only more economical but also less impactful on the environment.

Regulatory Compliance and Safety

Every Alpha boiler is constructed in compliance with the UK's stringent safety standards. They must be installed by a Gas Safe registered engineer, ensuring that all installations meet current regulatory requirements and are performed safely.

By comprehensively understanding the features and benefits of Alpha combi boilers, consumers can make informed decisions that fit their specific needs for efficient and reliable home heating.

Alpha E-Tec Plus NX Combi Boiler

The Alpha E-Tec Plus NX represents a notable leap in boiler technology, combining high efficiency with durable components. It stands out for its lengthy warranty period and potential cost savings in energy bills, making it an attractive option for modern homes.

Key Features

  • Efficiency: At 94% efficiency, the E-Tec Plus NX is designed to convert fuel to heat with minimal waste, which can lead to reductions in gas bills.

  • Warranty: The boiler comes with a default 10-year warranty, which is a testament to its reliability and the manufacturer's confidence in its product longevity.

  • Stainless Steel Heat Exchanger: Unlike boilers with aluminium heat exchangers, the E-Tec Plus NX employs stainless steel, which is resistant to corrosion over time and maintains the unit’s efficiency.

  • Hot Water Flow Rate: With a flow rate of 15.4 litres per minute, the 37kW model caters to homes with higher hot water demand effectively.

  • Installation Options: The Pro version includes a Cyclone filter, and when fitted with the PremierPack Pro, the warranty extends to 13 years.

The cost of the Alpha E-Tec Plus NX varies, though it's broadly seen as a competitively priced model. A fixed price installation quote can readily be obtained, reflecting the straightforward installation process these combi boilers offer.

Alpha E-Tec NX Combi Boiler

The Alpha E-Tec NX combi boiler series epitomises efficiency and reliability in domestic water and heating solutions, with key advancements in technology and performance for 2024 models.

Key Features

  • Efficiency: The Alpha E-Tec NX boasts an impressive 94% efficiency rating, indicating a significant reduction in energy waste and cost savings on household utility bills.

  • Construction: This model features a stainless steel heat exchanger, enhancing durability and ensuring longevity. The construction materials are meticulously selected to provide robust performance while maintaining a lighter weight for ease of installation.

  • Output and Flow Rate: The Alpha E-Tec 33 NX variant delivers a commendable central heating output of 32kW and a hot water flow rate of 14.1 litres per minute, suitably addressing the demand for consistent and brisk hot water supply in medium to large households.

  • Pump Technology: Integration of the Grundfos hydroblock assembly with Delta T variable speed operation pump equips the boiler with adaptive pressure and flow capabilities.

  • Temperature Control: Users can adjust the heating flow temperature, allowing the boiler to operate more effectively and adapt to different heating demands, contributing to increased efficiency and user comfort.

  • Weather Compensation: The inclusion of weather compensation technology allows the boiler to modify its operation based on external temperature conditions, optimising comfort and energy usage.

  • Warranty: The E-Tec NX line comes with a reassuring 7-year warranty, signifying Alpha’s confidence in their product’s r

Alpha Evoke NX combi boiler

The Alpha Evoke NX combi boiler emerges as a strong contender in the 2024 market for its reliable performance and exceptional features suited to medium-sized homes.

Key Features

  • Heat Output: The boiler is proficiently designed to deliver a heat output of 28kW, making it ideally suited for the typical demands of medium-sized domestic settings.

  • Heat Exchanger: It boasts a stainless steel heat exchanger, recognised for its durability and efficiency over prolonged periods of usage.

  • Grundfos Pump: Integral to its operation is a high-quality Grundfos pump, ensuring consistent water circulation and boiler performance.

  • Efficiency: The Evoke NX operates at an impressive 94% efficiency level, signifying that most of the energy is directly converted into heating without substantial losses.

  • Controls Compatibility: This model is compatible with OpenTherm and Alpha BUS controls, providing users with flexible options for managing their heating.

  • Weather Compensation: The addition of an external sensor allows for weather compensation, lending the boiler a reactive edge to adjust heat output to changes in external temperatures automatically.

  • Installation Flexibility: With a removable push-fit flue connection, installers can accommodate various flue configurations with ease, whether vertical or horizontal.

  • Warranty: Economic considerations are somewhat assuaged with the peace of mind provided by a 7-year warranty, signalling confidence in the product's longevity.

  • User Interface: A large display enhances user interaction, while the integrated filling loop simplifies maintenance routines.

  • Merchants: Purchase is exclusively possible through independent plumbers' merchants, supporting local businesses and providing personalised customer service.

Alpha Combi Boiler Costs

In the ever-evolving market of home heating, Alpha combi boilers present a variety of models distinguished by their efficiency and cost-effectiveness. This section meticulously examines the intricate details of combi boiler costs, including installation charges and model comparisons.

Breakdown of Combi Boiler Costs

The price of an Alpha combi boiler typically oscillates between £625 and £1,795. The costs incorporate the boiler's fundamental features with differences attributed to output capacity and technological enhancements such as Grundfos pumps.

Installation Considerations and Expenses

Installation cost varies considerably, starting around £500 and can exceed £1,500 depending on aspects such as required modifications, flue type, and the necessity for extra components like radiators.

Price Comparison of Alpha Boiler Models

Alpha offers several combi boilers including the E-Tec, Evoke, and the premium E-Tec Plus. Each model is designed with distinct output ratings and dimensions, affecting their price. For instance, the Evoke series falls in the more affordable spectrum, with costs being proportionate to their kW output.

Factors Affecting Boiler Pricing

Boiler pricing is influenced by several variables: the boiler's kW rating, the complexity of installation, warranty terms, and durability. More robust models with longer warranty periods may have higher initial costs but offer savings on maintenance.

Cost Comparison with Competitors

Alpha boilers stand in competitive stead against rivals like Worcester Bosch and Vaillant. For example, some Worcester Bosch models can exceed £2,000, which signifies a higher investment compared to most of Alpha's range, accentuating Alpha’s affordability.

Financial Considerations for Long-Term Savings

Long-term savings are contingent upon energy efficiency and fuel expenses. Alpha combi boilers are engineered to maximise energy savings, which, when coupled with minimal maintenance requirements, underscores their economic appeal over the lifecycle of the boiler.

Installation and Usage

Choosing the appropriate Alpha combi boiler for one's home considerations such as hot water demand and the number of bathrooms and bedrooms. Proper installation and consistent maintenance are imperative for operational efficiency and safety.

Selection Process for Suitable Models

When selecting an Alpha combi boiler, homeowners should consider the size of their property, specifically the number of bedrooms and bathrooms, to determine the adequate hot water demand. For smaller homes with one bathroom, models with lower kW output may suffice, while larger homes with multiple bathrooms may require a higher capacity boiler to meet their needs. Getting a quote from a qualified engineer, registered on the Gas Safe Register, ensures that the recommended boiler matches the specific demands of the home.

Installation Process and Best Practices

The installation cost of an Alpha Combi Boiler typically ranges from £900 to £2,500, influenced by model choice and regional variations such as higher fees in London. Installation by a Gas Safe registered engineer is not only a best practice but a legal requirement. This ensures safety and validates warranties, which can cover up to 10 years. Ease of installation can vary, but generally, Alpha combi boilers are designed with user-friendly interfaces.

  • Preparation: Ensure the area is clear and the old boiler is safely removed.

  • Installation: Executed by a qualified engineer, including setting up the flue, pipework, and electrical connections.

  • Testing: The system should be thoroughly tested for leaks or faults.

Post-Installation Maintenance and Servicing

After installation, regular maintenance is vital for longevity and efficiency. Annual servicing by a qualified engineer can prevent costly repairs and maintain optimal functionality. Homeowners should also familiarise themselves with basic troubleshooting for minor issues and utilise customer service channels for support. Scheduled servicing contributes to the safe operation of the boiler and compliance with warranties.

  • Annual Check-Ups: Required to keep the boiler running efficiently and safely.

  • Customer Support: Available for guidance on maintaining the boiler and to arrange repairs or servicing.

  • Self-Maintenance: Simple steps include monitoring boiler pressure and regular bleeding of radiators.

Additional Considerations

When opting for an Alpha Combi Boiler, homeowners should ponder over several critical factors beyond the initial purchase cost. These include the potential for accessories and system upgrades, warranty terms, efficiency optimisations, and scrutinising customer feedback.

Accessories and Upgrades

Alpha Combi Boilers can be accompanied by various accessories and upgrades designed to enhance performance and user experience. User-friendly controls and advanced features like a Grundfos pump may increase upfront costs, yet they contribute to long-term savings on energy bills. Homeowners may also opt for a hot water cylinder or storage tank to provide extra capacity, which can be especially beneficial for larger households. It's imperative to consider water pressure specifications when selecting these additions, ensuring compatibility with your home's system.

Understanding Warranties and After-Sales Service

Alpha's boilers come with varying warranties that guarantee the longevity of their heat exchangers and other vital components. It's essential to comprehend the length and terms of these warranties, as well as what they cover. After-sales service plays a pivotal role in customer satisfaction, so researching Alpha's customer service and support is advisable. This ensures that any issues post-installation are handled efficiently.

Maximising Boiler Efficiency

The efficiency rating of a boiler impacts fuel consumption and, consequently, household energy bills. Alpha Combi Boilers are designed for high efficiency, which is reflected in their energy-efficient ratings. Features such as condensing technology and modulating Grundfos pumps aim to reduce wasted energy. Homeowners should investigate these technologies to understand how they could benefit their specific heating needs and contribute to energy cost savings.

Evaluating User Feedback and Industry Reviews

Reviews and ratings by current users provide insightful information regarding the real-world performance and reliability of Alpha Boilers. Analysing this feedback, alongside professional industry reviews, can aid in gauging the overall customer satisfaction. Industry reviews might also compare Alpha to competitors, highlighting strengths and weaknesses in terms of efficiency, user-friendliness, and boiler functionality. Such evaluations are beneficial in affirming the decision to purchase an Alpha Combi Boiler.

Conclusion and Next Steps

Alpha Heating Innovation has remained at the forefront of combi boiler technology, offering a variety of models that merge quality with energy efficiency, all within an accessible price range. As deciding on a boiler is a significant decision, it is advantageous to review the salient points, consider helpful purchasing advice, and know how to obtain more information directly from Alpha.

Summarising Key Points

Alpha combi boilers are a cost-effective heating solution, with prices commencing from approximately £625 and extending up to £1,925. These costs do not factor in installation. They are designed to be compact and durable, employing advanced combustion technology to enhance energy efficiency. It is reported that customers appreciate the quality offered by Alpha but note a marginally lower satisfaction rate compared to the industry average.

Decision-Making Tips for Potential Buyers

When selecting an Alpha combi boiler, potential buyers should consider:

  • Budget: Establish financial limitations and match them with available models.

  • Efficiency: Look for high-efficiency boilers to reduce energy bills.

  • Quality: Prioritise models that promise long-term durability and performance.

  • Size: Choose a boiler appropriate for the household size and water usage.

Contacting Alpha Heating Innovation for Information

Gaining specific information or a personalised quote is facilitated by contacting Alpha. Their customer service can provide detailed insights into individual products and installation services. To contact Alpha:

  • Visit the Alpha Heating Innovation official website.

  • Use the Get a Quote feature for a tailored cost estimation.

  • Alternatively, phone their customer service for direct assistance.

By considering these variables, potential buyers can make an informed choice aligning with their needs and expectations.

iHeat New Boiler Costs

Boilers can be a daunting purchase for many people as they’re an appliance with a lot of responsibility, providing heat for you and your family is something you want to get right. Boilers aren’t exactly a quickly disposable item either, potentially lasting you a decade.

Boiler costs can be split into two segments: the first is the actual boiler itself (unit price), and the second is the cost of the boiler being installed (set up) in your property by an expert engineer. 

Here at iHeat, we want to remove all of this undue stress and make the decision making process of upgrading to a new central heating system, as easy as possible.

Boiler costs can vary depending on a number of factors including their brand, model, fuel, output, warranty, labour and installation type. Typically a new boiler will cost between £1,845 and £3,500, below is a list of average boiler installations offered by iHeat (guide only).

Installation Type

Price (inc VAT)

Combi to combi swap


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System to combi conversion


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New boiler install


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Back boiler to a combi


Get a quote

System to system


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Frequently Asked Questions

How much do Alpha boilers cost?

In 2024, the price of Alpha combi boilers generally ranges from around £950 to £1,750. This cost varies depending on the model and its features.

How much does it cost to fit a combi boiler?

Fitting a combi boiler can incur an additional charge, with installation costs ranging between approximately £500 and £1,500, influenced by the complexity of the installation job.

How much is an Alpha boiler service?

Servicing an Alpha boiler typically falls within the range of £60 to £120. Prices can vary based on location and the extent of the service required.

How long does an Alpha combi boiler last?

An Alpha combi boiler usually offers a lifespan of between 10 to 15 years, contingent on regular servicing and proper maintenance.

How good is an Alpha boiler?

Alpha boilers are recognized for their reliability and efficiency. They are a solid option within the mid-range boiler market and offer good value for the features provided.

How much is a new combi boiler with installation?

A new combi boiler, including installation, can be expected to cost between £1,395 and £3,995 in total. This estimate accounts for the variance in boiler prices and installation fees.

Stephen Day profile photo
Article by
Stephen Day | Co-founder
Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.