British Gas Boilers Prices

British Gas Boilers: A Complete Guide to their Prices, Reviews, Warranties And a Lot More

British Gas is one of the largest energy and home services providers in the UK and gives homeowners easy access to high-quality, reliable, energy-efficient boilers. With flexible payment plans including a 3 years interest-free credit and no deposit required, sourcing a boiler from British Gas could be a good option for cash-strapped householders.

The energy supplier also provides a wide variety of boiler types from some of the leading manufacturers in the UK including  Vaillant, Worcester Bosch, Ideal, Baxi, Ariston and Glow-Worm. Boasting a plethora of energy-efficient boilers with an ErP rating of between 90-94%, British Gas say these new-generation gas boilers can cut energy bills by up to 22%.

That may or may not be true. The ever-shifting price hikes skew any chance of effectively measuring your cost savings. Regardless of energy prices, the corporate giant is not the most cost-effective boiler supplier. Better deals are available elsewhere. 

In this article, we give you the lowdown on buying a boiler from British Gas, discussing the pros and cons and helping you to decide whether the biggest energy company in the UK is hot, hot, hot or whether they are just blowing hot air. 

Aim of the content of this article?

The content on this website aims to inform UK residents how to identify the best boiler for their home at the best price. We take a deep dive into a specific boiler brand and explain everything you need to consider to make the right choice.

Not only that, but we also put you in touch with local suppliers and installers to ensure you get a good deal on an energy-efficient gas boiler with a reputable heating company. 

Providing relevant, accurate and impartial information about the UK’s energy market is important to us. To ensure we deliver on our intention, we research the boiler brands that are operating in the UK and report what consumers. commentators and engineers have to say about the brand. Wherever possible, we ignore brand marketing and attempt to piece information together so that we can reveal the bigger picture. 

The information we provide — together with “our verdict” — is based on the views of people who have experience with a particular brand; real customers, and frontline professionals in the energy consumer industry. We also consider consumer magazines and other websites in the energy sector to see if what they report corroborates with what real people say.

Ultimately, the information we provide on this page will help you to determine whether a boiler from British Gas is the right choice for your home.

By the time you finish reading this page, you will know:

• The different types of energy-efficient boilers British Gas manufactures so that you can decide which type of boiler serves your heating and hot water needs
• How many kW do you need to comfortably heat your home and meet your real-time hot water demands
• The cost, models and efficiency of British Gas boilers 
• The boiler specifications and dimensions that can be installed in your home (which type of boiler is best for you)
• Boiler comparisons that fall into the same price point and star rating as British Gas so you can broaden your search easily

British Gas: A Trusted Name in Boilers

As well as being a trusted household name, British Gas is a popular choice for boiler installations. With more than 200 years of history, the Gas Light and Coke Company established in 1812 has become a national institution.

You may or may not be surprised to learn the company was founded by the German Frederick Albert Winsor and incorporated by royal charter under the seal of King George III. 

British Gas invests a lot of time and money in training its heating engineers. The heating giant currently boasts an army of 6500 qualified engineers which enables the company to deliver a fast and flexible service. 

Although the company does not have a good reputation for its customer service excellence, efforts have improved in recent years. Following a ticking off from Ofgen in 2023, British Gas bosses have pulled up their pants and invested £25 million into its customer service operations so they can handle a large volume of calls and deliver superior customer service.

Considerations when buying a British Gas Boiler

When considering buying a British Gas boiler, there are several factors to take into account to ensure you choose the right model for your needs. 

Energy-Efficiency

Energy-efficient boilers are the name of the game these days. British Gas has teamed up with the best in the business including Vaillant, Worcester Bosch, Ideal, Baxi, Ariston and Glow-Worm.

Look for boilers with high Energy-related Products (ErP) ratings. British Gas claims you can cut your energy bills by up to 22% with an A-rated new boiler from British Gas.

Boilers available through British Gas are designed with a focus on energy efficiency. They incorporate advanced technologies to maximize the efficiency of the heating process and reach a reasonable 90-94% energy-saving metric. 

The big six boiler manufacturers in the UK use advanced technologies, such as condensing technology and programmable thermostats that enable you to control the temperature of individual rooms or zones in their homes. These thermostats help optimize comfort and energy usage by allowing precise temperature control where it’s needed most and to maximize the efficiency of the heating process. This can result in lower energy bills and reduced environmental impact.

Dimensions

British Gas supply boilers for all types of homes in the UK. Built with compact space-saving designs, they can easily be stored in a cupboard or under the stairs without being invasive. 

Combi boilers are the best option for homes that do not have much storage space. Heat-only boilers and system boilers are arguably better for larger homes. We recommend consulting a boiler supplier through our get a quote feature for the best advice on which boiler is most suitable for your home. Reputable suppliers will be able to offer guidance if you tell them your heating and hot water demands; the number of rooms, radiators, bathrooms and how many people need access to hot water. 

Performance Output in kW

The kW performance output determines how effective the boiler is for meeting the heating demands of your home. This metric indicates how much heat the boiler can produce per unit of time. A higher kW rating generally means a greater heating capacity.

Choosing a boiler with an appropriate kW rating is essential to match the heating demand of the building or space. Selecting a boiler with insufficient kW capacity may result in inadequate heating, while choosing one with excessive capacity may lead to inefficiencies and increased energy consumption.

Ease and Cost of Installation

The accessibility of the installation site and complexities in fitting a particular boiler site can impact labour costs. According to gas-safe engineers, British Gas installations are one of the easiest to fit and components are readily available throughout the UK. 

The ease of installation means that costs for servicing and maintenance tasks will incur standard labour charges. Remember to factor in the cost of professional gas-safe installers — and bear in mind installation costs are never included in the price shown for the boiler. 

Although Boiler Prices is not able to provide specific rates for every boiler installation provider, we can say the average installation cost for a new energy-efficient boiler in the UK is between £1,100 – £1,800. British Gas charges £2,964 for the boiler installation and includes a Hive smart thermostat and a 5-year warranty. 

To find out exactly how much you should expect to pay to install a new British Gas boiler in your home, take advantage of the Boiler Prices ‘get a quote’ feature. 

Get your free quote now by clicking the link and filling out the question form.

Warranty

If you choose British Gas to replace your old boiler, your new boiler will come with a 12-year British Gas warranty and your heating system will be covered for the first year. Your engineer will even remove your old boiler and cleanse your system before fitting your new boiler, then show you how to use it.

British Gas Combi Boilers: Compact, Efficient, and Cost-Saving

Combi boilers combine the functions of a central heating boiler and a high-efficiency water heater into one compact unit. This means they do not require a separate hot water cylinder or cold water tank, saving space in the home.

One of the key advantages of combi boilers is that they provide hot water on demand. When a hot water tap is turned on, the boiler heats water directly from the main supply, eliminating the need for a storage tank. This means you have instant access to hot water whenever you need it.

Combi boilers are known for their energy efficiency. They only heat water when it’s needed, reducing energy wastage compared to traditional boilers with storage tanks. This efficiency can lead to lower energy bills and reduced carbon emissions.

Since combi boilers heat water directly from the mains supply, there is no risk of water freezing in pipes or tanks during cold weather. This can be a significant advantage in colder climates.

In addition, combi boilers are often low maintenance, requiring fewer parts and components than traditional systems. This can lead to lower servicing costs and less frequent maintenance.

Note: the prices listed below are the purchase prices for the boiler only. They do not include installation costs.

COMBI GAS BOILER SERIES	SIZES	SIZE OF HOME	PRICE
Greenstar i Junior Combi	24 – 28kW	Small to medium-sized homes with one bathroom	£767.39 – £854.88
Greenstar Si Compact Combi	25 – 30kW	Small to medium-sized homes with one bathroom	£851.90 – £952.64
Greenstar CDi Classic Combi	29 – 42kW	Medium to large-sized homes with one of two bathrooms	£1,018.80 – £1,435.01
Greenstar CDi Compact Combi	28 – 36kW	Medium to large homes with more than one bathroom	£973.44 – £1,204.32
Greenstar Highflow CDi Combi	29 – 30kW	Large homes with two bathrooms	£1,710.16 – £2,400
Greenstar 2000 Combi	25 – 30kW	Suitable for small and medium-sized homes	£735 – £852
Greenstar 4000 Combi	25 – 30kW	Suitable for small and medium-sized homes	£985 – £1,050
Greenstar 8000 Life Combi	30 – 50kW	Ideal for larger homes with more than one bathroom	£1,200 – £2,070
Greenstar 8000 Style Combi	30 – 50kW	Ideal for larger homes with more than one bathroom	£1,133 – £2,265
Ariston Clas Net One Combi	24 – 38kW	Small, medium and large-sized homes with one bathroom	£1,315 – £1,570
Ariston Clas HE Evo Combi	24 – 38kW	Small, medium and large-sized homes with one bathroom	£640 -£1,300
Ariston Alteas ONE Net Combi	30 – 35kW	Small, medium and large-sized homes with one bathroom	£1,100 – £1,350
Ariston Genus ONE Net Combi	30 – 35kW	Small, medium and large-sized homes with one bathroom	£1,050 – £2,100
Vaillant ecoTEC Plus System	12 – 37kW	Small, medium and large-sized homes with multiple bathrooms	£780 – £1,370
Vaillant ecoFIT Pure System	12 – 30kW	Small, medium and large-sized homes with multiple bathrooms	£840 – £1,160
Vaillant ecoTEC Exclusive with Green iQ System	27kW	Medium to large-sized homes with multiple bathrooms	£1,300
Vaillant ecoTEC Plus 48kW & 64kW System	48 – 64kW	Large homes with multiple bathrooms	£2,200 – £2,600
Vaillant ecoTEC 46kW & 65kW System	46 -65kW	Commercial buildings and large homes with multiple bathrooms	£2,200 – £2,800
Glow-worm Betacom4 Combi	24 – 30kW	Small to medium-sized homes with one bathroom	£550 – £612
Glow-worm Essential Combi	24 – 28kW	Small to medium-sized homes with one bathroom	£620 – £660
Glow-worm Easicom Combi	24 – 28kW	Small to medium-sized homes with one bathroom	£627 – £660
Glow-worm Betacom2 Combi	24 – 28kW	Small to medium-sized homes with one bathroom	£642.41 – £680.06
Glow-worm Flexicom Combi	24 – 35kW	Small, medium and large-sized homes	£650 – £880
Glow-worm Ultimate3 Combi	30 – 35kW	Medium to large-sized homes with one bathroom	£695 – £770
Glow-worm Ultracom2 Combi	24 – 35kW	Small, medium and large-sized homes	£738 – £975
Glow-worm Energy Combi	25 – 35kW	Small, medium and large-sized homes	£790 – £920
Glow-worm Energy 35 Store Combi	35kW	Large homes with more than one bathroom	£1,555
Ideal Independent Combi	24 – 35kW	Small, medium and large-sized homes with one bathroom	£625 – £750
Ideal Logic Combi	24 – 35kW	Small, medium and large-sized homes with one bathroom	£656 – £848
Ideal Logic ESP1 Combi	24 – 35kW	Small, medium and large-sized homes with one bathroom	£725.51 – £928.61
Ideal Logic Max Combi	24 – 35kW	Small, medium and large-sized homes with one bathroom	£860 – £1,070
Ideal Logic+ Combi	24 – 35kW	Small, medium and large-sized homes with one bathroom	£879 – £1,011
Ideal Vogue Combi	26 – 40kW	Small, medium and large-sized homes with one bathroom	£943 – £1,221
Ideal Logic Code Combi	26 – 38kW	Small, medium and large-sized homes with one bathroom	£1,000 – £1,330
Ideal Vogue Max Combi	26 – 40kW	Small, medium and large-sized homes with one bathroom	£1,109 – £1,340

British Gas System Boilers: Easy installation, efficient heating, and customisable options

System boilers are designed to heat water and distribute it to radiators throughout the home. They work in conjunction with a hot water cylinder to provide hot water for taps and showers.

Bear in mind that, unlike combi boilers, system boilers require a separate hot water storage cylinder, often located in an airing cupboard or loft space. This cylinder stores hot water for later use, ensuring a ready supply of hot water when needed.

However, system boilers are a good compromise between combi boilers and traditional heat-only boilers. They are ideal for larger homes with multiple bathrooms, as they can supply hot water to several outlets simultaneously without a pressure drop. This makes them suitable for households with higher hot water demand.

Similar to combi boilers, system boilers are quiet and provide good water pressure to taps and showers. This is because they operate with a separate hot water cylinder, ensuring a consistent flow of hot water.

Note: the prices listed below are the purchase prices for the boiler only. They do not include installation costs.

SYSTEM GAS BOILER SERIES	SIZES	SIZE OF HOME	PRICE
GB162 System	50 – 100kW	Large homes and commercial properties	£1,980 – £3,600
Greenstar i System	30 – 35kW	Small, medium and large-sized homes	£1,062.46 – £1,250
Greenstar CDi Classic System	30 – 42kW	Large homes with multiple bathrooms	£1,398.39 – £1,847.10
Greenstar 4000 System	12 – 24kW	Suitable for small and medium-sized homes	£960 – £1,120
Greenstar 8000 Life System	30 – 35kW	Homes with more than one bathroom and high demand for hot water	£1,230 – £1,375
Greenstar 8000 Style System	30 – 35kW	Homes with more than one bathroom and high demand for hot water	£1,300 – £1,445
Vaillant ecoTEC Plus System	12 – 37kW	Small, medium and large-sized homes with multiple bathrooms	£780 – £1,370
Vaillant ecoFIT Pure System	12 – 30kW	Small, medium and large-sized homes with multiple bathrooms	£840 – £1,160
Vaillant ecoTEC Exclusive with Green iQ System	27kW	Medium to large-sized homes with multiple bathrooms	£1,300
Vaillant ecoTEC Plus 48kW & 64kW System	48 – 64kW	Large homes with multiple bathrooms	£2,200 – £2,600
Vaillant ecoTEC 46kW & 65kW System	46 -65kW	Commercial buildings and large homes with multiple bathrooms	£2,200 – £2,800
Ariston E-System One	24 – 30kW	Small, medium and large homes with more than one bathroom	£740 – £795
Ariston Clas System One	18 – 30kW	Small, medium and large homes with more than one bathroom	£775 – £1,125
Ideal Logic System	15 – 30kW	Small, medium and large-sized homes with multiple bathrooms	£735 – £830
Ideal Logic+ System	15 – 30kW	Small, medium and large-sized homes with multiple bathrooms	£780 – £870
Ideal Logic Max System	15 – 34kW	Small, medium and large-sized homes with multiple bathrooms	£860 – £1,150
Ideal Vogue System	15 – 32kW	Small to medium-sized homes with multiple bathrooms	£905 – £1,204
Ideal Vogue Max System	15 – 32kW	Small, medium and large-sized homes with multiple bathrooms	£920 – £1,210

British Gas Heat Only Boilers: Versatility, Efficiency, and Reliability

Heat-only boilers, also known as conventional or regular boilers, are one of the oldest and most traditional types of central heating systems. They have been used for many years to provide heating and hot water in homes.

Unlike combi boilers, which heat water on demand, heat-only boilers require a separate hot water cylinder to store and heat the hot water. This cylinder is usually located in an airing cupboard or loft space.

The key difference is that heat-only boilers also require a cold water tank in the loft, which supplies the boiler with water for heating. Whilst the tank ensures a constant supply of cold water to the system, they also require more space so are most suited to larger homes.

Note: the prices listed below are the purchase prices for the boiler only. They do not include installation costs.

REGULAR GAS BOILER SERIES	SIZES	SIZE OF HOME	PRICE
Greenstar Ri Regular	12 – 24kW	Small, medium and large-sized homes	£759.15 – £877.49
Greenstar CDi Classic Regular	34 – 40kW	Large homes with multiple bathrooms	£1,062.46 – £1,363.85
Greenstar FS CDi Regular	30 – 42kW	Large homes with more than one bathroom	£1,398.39 – £1,847.10
Greenstar 8000 Life Regular	30 – 50kW	Homes with more than one bathroom and high demand for hot water	£1,260 – £2,220
Vaillant ecoFIT Pure Regular	12 – 35kW	Small, medium and large-sized homes with more than one bathroom	£730 – £1,440
Vaillant ecoTEC Plus Regular	12 – 35kW	Small, medium and large-sized homes with more than one bathroom	£720 – £1,520
Ariston Clas HE Regular	24kW	Small to medium homes with multiple bathrooms	£640
Ideal Logic Heat	12 – 30kW	Small, medium and large-sized homes with more than one bathroom	£778 – £1,027
Ideal Mexico HE	15 – 36kW	Small, medium and large-sized homes with more than one bathroom	£830 – £2,200
Ideal Logic Max Heat	12 – 30kW	Small, medium and large-sized homes with more than one bathroom	£850 – £1,180
Ideal Logic+ Heat	12 – 30kW	Small, medium and large-sized homes with more than one bathroom	£872 – £1,118

Living with your British Gas boiler

British Gas Boiler Warranties

British Gas typically offers a standard warranty of up to 12 years on their boilers. This warranty is included with the purchase of a new boiler and covers the cost of parts and labour for any repairs needed during the warranty period.

Homeowners can opt for extended warranties for additional coverage beyond the standard warranty period. British Gas offers extended warranties of up to 12 years on select boiler models. These extended warranties provide continued protection and support for a longer period.

Warranties cover the cost of repairs or replacements of faulty parts and components of the boiler. This includes components such as the heat exchanger, pump, controls, and other essential parts.

British Gas Boiler Controls

British Gas provides smart thermostats that allow homeowners to control their heating remotely using a smartphone app or through voice commands with compatible smart assistants like Amazon Alexa or Google Assistant. 

Programmable thermostats offer features such as scheduling, geofencing, and energy usage tracking to optimize heating efficiency and reduce energy bills. They can program different temperature settings for different times of the day, ensuring comfort while minimizing energy consumption when heating is not needed.

You should also expect to receive room thermostats that allow you to control the temperature of individual rooms or zones. These thermostats help optimize comfort and energy usage by allowing precise temperature control where it’s needed most.

British Gas Boiler Cover and Breakdown Options

British Gas offers comprehensive boiler cover and breakdown options to provide peace of mind and protection for homeowners. The company’s HomeCare Plans are designed to cover various aspects of home heating systems, including boilers, central heating, plumbing, and more. These plans offer different levels of coverage to suit the needs and budgets of homeowners.

In addition, you can opt for specific boiler cover plans that focus on protecting the boiler itself. These plans typically include repairs, parts, and labour costs in the event of a breakdown or fault with the boiler.

Customers with British Gas boiler cover have access to a 24/7 helpline for emergencies. This helpline provides assistance and advice in the event of a boiler breakdown or heating system fault, ensuring quick response times and support. 

British Gas Boiler Surveys and Reviews

When analysing boiler installers, the best policy is to consult with past customer reviews. Websites like Trustpilot offer invaluable insights beyond marketing claims, providing a genuine understanding of the company’s performance.

As you would expect from any major boiler installer, British Gas receives mixed reviews from its customers. The company’s Trustpilot score has a respectable 4.1 rating out of 5 which is a significant improvement on the 3.1 out of 5 on April 22. It would appear that this is largely due to the improved response from their customer service team. It’s clear to see that even when customers so have complaints, active measures are taken to rectify the issue.

That said, 27% of its customers have only been awarded one star although 54% felt a 5-star rating was warranted. These numbers may not look great on the face of it, but when you consider over 186,000 have been posted, the percentage figures are more respectable. That’s 50,200 complaints, but British Gas, under their residential business name, Centrica do boast 7.52m customers and 3.14 commercial contracts.

The most common complaints aimed at British Gas relate to faulty smart meters breaking or not working and extortionate or unclear energy bills.

The results of the Which? survey is compatible with Trustpilot also and provides us with more relevant information. According to the consumer magazine, British Gas ranks 10th out of the 16 energy companies with only 56% of its customers confirming they are satisfied with the service. That’s slightly below average. 

We weren’t too surprised to see that British Gas customers only gave a 2 out of 5-star rating for value for money. Whilst the company offer payment plans, there are less expensive options available. 

There is some love for British Gas though. Engineers validated the company they work for and the national institution received one of the highest scores from suppliers concerning customer support. However, the same group did slate the energy suppliers for its poor performance in meeting smart meter targets for which the company received a £3.37m fine from the energy regulator Ofgem’sin 2023.

How do British Gas boilers compare with other energy companies?

British Gas is a widely recognized brand with a chequered reputation. Whilst their boilers are often seen as reliable, you may be better served dealing with boiler brands directly. British Gas charges more for installation although do allow you to delay payment for 48 months with interest-free credit and £0 deposit. It’s a good option if you are strapped for cash but expect to pay more in the long run. 

If you’re looking to take advantage of smart technology, it should be noted that British Gas only works with Hive. Other brands sync up with Nest as well, and according to Good Housekeeping, BOXT is £50 less expensive and essentially gives you the Nest Mini for free. 

Homeserve also offers a better deal on comprehensive boiler cover including plumbing, drains and electrics. With British Gas, you pay £21.60 a month. With Homeserve, you pay £9 for the first year and £18 thereafter (as of Feb 24).

So, why buy a British Gas boiler?

British Gas has been replacing and installing boilers for more than 50 years. They supply and install leading boiler makes and models including Vaillant, Worcester Bosch, Ideal, Baxi, Ariston and Glow-Worm. British Gas offers combi, system and conventional boilers.

With thousands of Gas Safe registered engineers, British Gas makes it easy for you to book a free appointment so that you can discuss the best boiler options for you and your home. No matter which boiler model you choose, you can be confident that you’ll be getting a boiler that is A-rated for energy efficiency and has been tested by experts.

You can choose from two packages, including Standard Installation or Low-Cost Installation, and prices start at just £1,666. British Gas has a national network of expert engineers and offers top boiler British Gass and generous warranties, or you can opt for the low-cost installation package and have your boiler installed by a Local Heroes engineer.

The British Gas boiler installation packages are as follows and include:

Standard Installation Package

• Installed by a British Gas engineer
• 5-year British Gas warranty
• Order online or with a Heating Adviser
• 3 years of interest-free credit available

With the Standard Installation package, you can get a fixed-price quote online by sharing a few details about your home and answering questions. Alternatively, you can book a home visit or a video chat appointment with an expert engineer to discuss your options and get your fixed-price quote.

Low-Cost Installation Package

• Installed by a Local Heroes engineer
• 12-month guarantee, backed by British Gas
• Order online only
• Spread the cost over 5 years at 9.9% APR

If you like the idea of the low-cost installation package, you can get a free online quote but will only have the option to order your new boiler online. However, you can still get some advice on choosing the correct boiler for your home by calling British Gas or booking a free consultation with a boiler expert.

When you purchase a British Gas boiler, you can pay for everything upfront or spread the cost and pay monthly. If you decide to pay in full, British Gas accepts payment by cheque, as well as major debit and credit cards. You won’t have to pay for the cost of installation until the job is complete, provided you are 100% happy with the work that has been carried out.

Alternatively, British Gas can arrange a finance agreement to fund the full cost of your installation.

You don’t need to pay a deposit, and you can explore options that include:

• 24, 30 or 36 months interest-free (0% APR)
• 3, 5, 8 or 10 years at 9.9% APR

Before entering into a loan agreement contract, you must go through a lender approval process, which includes making credit checks, reviewing your financial situation and assessing your ability to repay the loan.

If you want to pay monthly but don’t want to take out a finance agreement with British Gas, you can try and get a loan from a bank or a different finance provider.

Why You Can Trust Boilers Prices

Boiler Prices were established in 2013 to help you identify the best boiler for your home and to get access to the most affordable boiler quotes from a central location without having to waste time shopping around. Our service is fast, efficient and effective. We source the best quotes offered by national installers and local boiler installers. 

But it’s all very well and good reading the information we publish on our website, but how do you know you can trust the advice we provide? 

Well, first and foremost, we want to assure you that Boiler Prices does not have any direct affiliation with British Gas or any other boiler manufacturer. The information we present is 100% unbiased, impartial and given to the best of our knowledge. 

Moreover, we source our information from customer feedback, and recognised review websites (like Which? and Energy Savings Trust etc) together with gas-safe engineers and other professionals working in the energy and heating sector. 

We appreciate that UK homeowners want to know if these new energy-efficient boilers are reliable, efficient and available for a good price. Boiler Prices not only step in to provide information you can trust, but we also save you hours having to research the extensive boiler market.

For the best and most cost-effective boiler prices, you will have to do some shopping around. We recommend getting a quote from a national installer and a local boiler installer to see which gives you the best price. When you use Boiler Prices as your platform to look for boiler prices this is what we provide you with as a matter of course.

Boiler Prices have been providing UK homeowners with trustworthy information and boiler price comparisons since 2013. Not only that but our founder, Duncan Cumming has over a decade of experience in the boiler industry working directly with consumers. He is fully aware that reliable information needs to be improved in the boiler market and knows the questions homeowners want answered. 

All these factors make Boiler Prices the most trusted source of information about energy-efficient boilers – because we provide up-to-date and accurate information together with honest appraisals that say it how it is.