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Top 25 Boiler Brands in 2024: Compare UK Boiler Suppliers

Looking for a new boiler for your home? Then look at our ultimate guide of UK boiler companies including combi boilersgas, system and regular boilers.

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Worcester Bosch 8000 Life regular gas boiler model.

1. Ideal Boilers

Ideal Boilers logo.

Some of the Features and Benefits of Ideal Boilers:

  • Range of conventional boilers – hot water only
  • Range of combi boilers – smaller households – hot water on demand
  • Range of system boilers – larger households/multiple bathrooms
  • All gas boilers
  • Energy efficient
  • Easy ideal match tool
  • Simple control and easy-to-use
  • Made in the UK
  • Between 2 and 12 years parts and labour warranty
  • Customer Care 364 days per annum

Ideal Boilers began its life in 1906 as The National Radiator Company.  In the 1920's this was one of the first British companies to design a freestanding stove which allowed lower-income families to enjoy the benefits of central heating.  The Cookanheat combined a central heating boiler, open fire, oven and heated cupboard all in one unit.

Innovation after innovation followed. In 2009 Ideal Boilers won Our Quiet Mark and Good Housekeeping awards for their Logic+ boilers.  These boilers offer state-of-the-art technology and are small enough to fit into any kitchen cupboard.

Ideal Boilers continue to produce innovative products such as their 2017 Vogue Gen2 range and today’s Logic Max range.

More: Ideal Boiler Reviews & Prices
Website: https://idealheating.com/

2. Worcester Bosch Boilers

Worcester Bosch Group logo.

Some of the Features and Benefits of Worcester Bosch Boilers:

  • Installed within 72 hours
  • UK-based customer support 364 days a year
  • Gas, propane and oil boilers
  • Combi boilers – compact, less pipework, efficient
  • System boilers – economical
  • Regular – good for low-pressure areas and more than 2 bathrooms
  • Guarantees – between 5 and 10 years, depending on product
  • User-friendly controls
  • Energy saving
  • Environmentally friendly

Worcester Bosch began its life in 1962 as Worcester Engineering Co Ltd and was based in the city of Worcester.  The company soon established itself as a leading supplier of oil-fired central heating equipment.  In the early 1970's the company successfully introduced combination boilers to the UK and grew in leaps and bounds.

Worcester Engineering Co’s growth during the 1990's allowed it to build a new headquarters, factory and office complex in Warndon, just outside Worcester.  It was in 1992 that the company joined the Bosch Group.

In 2009, Worcester Bosch was awarded The Royal Warrant by Her Majesty the Queen for the continued excellence of products supplied to the Royal Family. The company has received many awards over the years for various products in its portfolio.

More: Worcester Bosch Reviews & Prices
Website: https://www.worcester-bosch.co.uk/

3. Vaillant Boilers

Vaillant Boilers logo.

Some of the Features and Benefits of Vaillant Boilers:

  • Regular, system and combination boilers
  • Oil condensing boilers
  • Gas and electronic boilers
  • High energy efficiency
  • Low emissions
  • Engineered in Germany, manufactured in the UK
  • Environmentally friendly designs
  • System boilers can be used with renewable energy systems
  • Versatile, quality products
  • Excellent customer service

Vaillant was founded in 1874 by Johann Vaillant, when he decided to start his own copper beating and pump maker workshop in Remscheid, Germany. Vaillant's first innovation was in 1894 when Johann introduced the world to the first ‘closed system’ gas bathwater heater.

Vaillant have always been innovators but one of their greatest claims to fame came in 1924 when they invented central heating.  It was now possible to heat several radiators from one central boiler.

By 1972, Vaillant had branches in the Netherlands, Austria, the UK, France, Belgium and Italy and had sold over 8 million units. By 1991, the group had grown to include Turkey, Poland, Hungary and the Czech Republic.  Today Vaillant has representation in over 60 countries and regions, including Europe, Africa, New Zealand, China and the Middle East.

More: Vaillant Boiler Reviews & Prices
Website: https://www.vaillant.co.uk/

4. Baxi Boilers

BAXI Boilers logo.

Some of the Features and Benefits of Baxi Boilers:

  • Combi boilers – output range from 24kW to 40kW
  • Heat-only boilers – output range from 12kW to 30kW
  • System boilers – output range from 12kW to 32kW
  • Use natural gas and LPG
  • Energy saving
  • Ecologically friendly
  • Easy-to-use controls
  • Control your heating and hot water from your phone or tablet
  • 365 day UK based customer service centre
  • Free 2 year warranty and limited-time offers of up to 10 years
  • Genuine Baxi parts available through approved stockists

Baxi Boilers can trace their beginnings back to 1866, when Richard Baxendale, an iron founder, started the company.  Since its inception, the company has been responsible for many major engineering breakthroughs in the boiler industry.  By 1955, Baxi Boilers was a household name in the United Kingdom.

Baxi is part of Baxi Heating, which has some of the most respected brands in the domestic and commercial heating industry in its portfolio.  These include Potterton, Main Heating and Packaged Plant Solutions among others.

Since 2010, Baxi Heating has been part of BDR Thermea, a world leader in the manufacture and distribution of sustainable, smart climate and sanitary hot water solutions and services.  With an annual turnover of over $2 billion, BDR Thermea has a presence in 70 countries around the globe.

More: Baxi Boiler Reviews and Prices
Website: https://www.baxi.co.uk/

5. Glow-worm Boilers

Glow Worm logo.

Some of the Benefits and Features of Glow-worm Boilers

  • Combi, regular and system boilers
  • Gas
  • Energy-efficient and cost-effective
  • Compact
  • 2 to 5 years warranty depending on model
  • Environmentally friendly
  • Easy to install
  • Simple to operate and maintain
  • LPG alternative on some models
  • Contact centre open 363 days per annum

Glow-worm started producing boilers in their Derbyshire factory in 1934.  Today the company is one of the leading heating manufacturers in the UK.

In 2001, Glow-worm was acquired by the Vaillant Group and has continued to produce innovative solutions to meet today’s heating needs.

Vaillant was founded in 1874 by Johann Vaillant, when he decided to start his own copper beating and pump maker workshop in Remscheid, Germany. The vaillant first innovation was in 1894 when Johann introduced the world to the first ‘closed system’ gas bathwater heater.

By 1972, Vaillant had branches in the Netherlands, Austria, the UK, France, Belgium and Italy and had sold over 8 million units. By 1991, the group had grown to include Turkey, Poland, Hungary and the Czech Republic.  Today Vaillant has representation in over 60 countries and regions, including Europe, Africa, New Zealand, China and the Middle East.

More: Glow Worm Boiler Reviews & Prices
Website: https://www.glow-worm.co.uk

6. Grant Boilers

Grant Boilers logo.

Some of the Features and Benefits of Grant Boilers:

  • A large range of oil-fired boilers
  • Award-winning condensing boiler range
  • Sleek designs
  • Very low NOx blue flame technology (compliant with 2018 legislation)
  • Outside boilers have built-in frost protection
  • 10-year guarantee when installed by a G1-accredited installer
  • Neon diagnostic indicators
  • Economical
  • Environmentally friendly
  • Customer service desk – Monday to Friday

Grant Engineering was founded in 1978 in Birr, Country Offaly, Ireland and has proved to be one of the leaders in the heating industry, with an extensive portfolio of products. By 1981, the company had grown significantly and opened a purpose-built factory in Crinkle, which manufactured 1,000 back boilers each week.  In 1996, Grant UK was established in Salisbury.

In 2002, Grant launched its Vortex condensing range of oil boilers in the UK and Ireland.  This was years ahead of mandatory legislation. Grant UK soon outgrew its Salisbury office and moved to new office and warehousing facilities in Devizes.

The Grant Engineering Group now has offices in Great Britain, the Republic of Ireland, Northern Ireland and France, which enables its innovative designs and award-winning technologies to reach a wide international audience.

More: Grant Boiler Reviews & Prices
Website: https://www.grantuk.com/

7. Alpha Boilers

Alpha Boilers logo.

Some of the Features and Benefits of Alpha Boilers:

  • Gas Combination boilers – 25 kW, 28kW or 35kW
  • Gas Regular boilers
  • Gas System boilers
  • 25 kW, 28kW or 35kW
  • UK-based Customer Service line
  • Choice of aftercare packages and service plans
  • Energy efficient and environmentally friendly
  • High quality
  • Range of boilers to suit all household sizes and requirements
  • Up to 10 years warranty, dependent on the boiler

Alpha Heating Innovation UK has been trading for over 50 years and is considered a leader in the heating world. It is part of the Italian Immergas Group which was founded in February 1964 and now operates in over 30 countries, including 8 in Europe.

Immergas manufactures high-quality residential and commercial boilers at their factories in Italy and Slovakia.  They are also opening a plant in Shanghai this year.  2019 saw the Immergas celebrate its 55th anniversary and the manufacture of its 7 millionth boiler.

Alpha not only prides itself on the quality of its products but also on its customer service.  They strongly believe that the customer comes first and do everything in their power to ensure customer satisfaction.

More: Alpha Boiler Reviews & Prices
Website: https://www.alpha-innovation.co.uk/

8. Viessmann Boilers

Viessmann Boilers logo.

Some of the Features and Benefits of Viessmann Boilers:

  • Combi boiler – quiet, compact and adaptable
  • System boiler – adjustable heat setting dependent on outside temperature
  • Regular boiler – good for large households
  • Gas and oil
  • Customer service – Monday to Friday + Saturday morning
  • Latest technology
  • Highest quality materials
  • Energy saving
  • Environmentally friendly
  • Easy to install, use and maintain

Viessmann is a German family-owned company which was founded in 1917 by Johann  Viessmann.  Johann lived in Hof, on the banks of the Saale and it was here that he built a small workshop to make steel boilers. Twenty years later, Johann moved his expanding business to Allendorf, where its headquarters remain today.

Viessmann opened its UK offices in 1989 in Telford. Viessmann UK offers domestic and commercial users tailor-made heating, cooling, power and air conditioning solutions.  The UK office also serves as a training centre, where 2,500 people are trained in various aspects of the company’s business each year.

Today the company employs over 12,100 people in 74 countries around the globe and has a group turnover of €2.37 billion per annum.  Viessmann has 23 production companies in 12 countries, with 120 sales offices around the globe.

More: Viessmann Boiler Reviews & Prices
Website: https://www.viessmann.co.uk/

9. Vokèra Boilers

Vokèra Boilers logo.

Some of the Features and Benefits of Vokèra Boilers:

  • Combi boilers
  • System boilers
  • Open vent boilers
  • Gas
  • Repair and care maintenance plans
  • Easy installation and maintenance
  • Good value
  • Energy efficient
  • Free standard 2-5 year warranty included, depending on the boiler
  • Environmentally friendly

Vokèra boilers are part of the Italian consortium, Gruppo Reillo.  Vokèra itself is almost 100 years old and began its life manufacturing boiler parts.  The company expanded into Europe and then the United States during the 1970's and 80's and has factories in Europe, China and North America.

Vokèra is one of the most popular brands of boilers in the UK and Ireland.  They have sold over a million and a half units during their 30+ years in the region.  They boast a 99% reliability rate during the first two years of installation.  Every unit is tested at their manufacturing plants before it is despatched.  Vokèra's state of the art R and D and manufacturing plant in Italy ensures the consumer is receiving the latest and most reliable technology.Website: https://www.vokera.co.uk/

10. Main Heating

Main Heating logo.

Some of the Features and Benefits of Main Boilers:

  • Combi and system boilers
  • Gas
  • Designed to be efficient and affordable without frills
  • Easy to fit and maintain
  • Easy-to-use controls
  • 2 to 5 years parts and labour warranty, depending on the model
  • Manufactured in the UK
  • Energy efficient
  • Environmentally friendly
  • Integral frost protection

Main Heating is part of the Baxi group.  Baxi can trace its beginnings back to 1866, when Richard Baxendale, an iron founder, started the company.  Since its inception, the company has been responsible for many major engineering breakthroughs in the boiler industry.  By 1955, Baxi Boilers was a household name in the United Kingdom.

Baxi is part of Baxi Heating, which has some of the most respected brands in the domestic and commercial heating industry in its portfolio.  Since 2010, Baxi Heating has been part of BDR Thermea, a world leader in the manufacture and distribution of sustainable, smart climate and sanitary hot water solutions and services.  With an annual turnover of over $2 billion, BDR Thermea has a presence in 70 countries around the globe.

More: Main Heating Boiler Reviews & Prices
Website: https://www.mainheating.co.uk/

11. Potterton Boilers

Potterton Boilers logo.

Some of the Features and Benefits of Potterton Boilers:

  • Combi, regular and system boilers
  • Gas
  • Wide range of output, sizes and types
  • Quick and easy installation
  • Parts and labour warranties
  • Energy efficient
  • Environmentally friendly
  • Easy-to-use controls
  • UK customer contact centre
  • Baxi genuine parts

Potterton’s long and illustrious history begins in 1850, when Thomas Potterton founded a company of general contractors in Balham, London.  The company installed the first gas boiler in 1902.  Potterton’s gas boilers grew in popularity and in the 1920's, they were installed in 10 and 11 Downing Street and the Odeon, Leicester Square.  Since its humble beginnings, Potterton has manufactured over 7 million boilers in the UK.

Potterton is now part of the Baxi Group which has an equally impressive history, starting in 1866.  Since 2010, Baxi Heating has been part of BDR Thermea, a world leader in the manufacture and distribution of sustainable, smart climate and sanitary hot water solutions and services.  With an annual turnover of over $2 billion, BDR Thermea has a presence in 70 countries around the globe.

More: Baxi Boiler Reviews and Prices
Website: https://www.baxi.co.uk/

12. Keston Boilers

Keston Boilers logo.

Some of the Features and Benefits of Keston Boilers

  • Combi, system and regular boilers
  • Gas
  • Twin flue
  • Easy to install and maintain
  • Simple to operate
  • 5 to 7 years warranty
  • Inbuilt frost protection
  • Weather compensation
  • Energy saving
  • Environmentally friendly

Keston can trace its history back to 1928 when the parent company was established as a domestic and commercial heating installation and servicing company.  Keston Boilers became part of Groupe Atlantic in 2015.  This is a French company that was founded in 1968 and now concentrates on creating ‘thermal comfort solutions in four areas: heating, hot water, air conditioning and ventilation.’

Keston Boilers have been manufactured on-site in Hull, UK since 2013. They have a British service team which is dedicated to giving assistance and advice to customers and potential customers 364 days a year.

More: Keston Boiler Reviews & Prices
Website: https://keston.co.uk/products 

13. Firebird Boilers

Firebird Boilers logo.

Some of the Features and Benefits of Firebird Boilers:

  • Combi and system boilers
  • Oil
  • Over 70 different models
  • 12kW to 100kW
  • Solar thermal and biomass boilers
  • Easy to install and service
  • Low maintenance
  • 10-year warranty available
  • Energy efficient
  • Environmentally friendly

Firebird Boilers was first established in Ireland in 1980 and was the trading name for O’Donovan Enterprises Ltd.  It was in 1982 that the company designed and manufactured its first solid fuel back boiler, followed four years later by an oil-fired central heating boiler.

The company expanded rapidly and in 1998 it opened a sales and distribution centre in Plymouth.  Today the company is committed to providing energy-efficient heating solutions which exceed today’s legislative requirements.

Firebird Boilers are at the forefront of renewable heating technological innovations with their air source heat pumps, biomass boilers and stoves, and solar thermal and underfloor heating systems.

More: Firebird Boiler Reviews & Prices
Website: https://firebird.uk.com/

14. Zanussi Boilers

Zanussi Boilers logo.

Some of the Features and Benefits of Zanussi Boilers

  • Combi and system boilers
  • Gas
  • Up to 10 years warranty depending on model
  • Energy efficient
  • Environmentally friendly
  • Easy and quick to install
  • Simple to operate
  • Frost protection
  • UK-based customer service online or telephone
  • Approved and trained installation technicians

In 1916 Antonio Zanussi started a company in northern Italy which made wood-burning ovens and stoves. By 1951, the company had over 300 employees and was diversifying into gas and electric ovens and stoves.  Zanussi went from strength to strength, bringing out washing machines, supermarket fridges and televisions.  By 1960, Zanussi was exporting to 60 countries.

Company personnel bereavements in a plane crash in 1968, which included Lino Zanussi, coupled with the state of the Italian economy in the 1970's caused Zanussi to fall into an economic crisis.  The company was bought by Electrolux in 1984. Electrolux is now the second largest appliance manufacturer in the world, with an annual turnover of $16 billion.  Zanussi’s products are manufactured under its own brand name in China, Thailand, Italy and Ukraine.

15. ATAG Boilers

ATAG Boilers logo.

Some of the Features and Benefits of ATAG Boilers:

  • Combi, regular and system boilers
  • System boiler – solar compatible and LPG convertible
  • Gas
  • Standard 10-year guarantee
  • Compact size
  • User friendly
  • Simple to install
  • Energy efficient
  • Environmentally friendly
  • ‘i’ range – most efficient in Europe
  • Warranty helpline is open 24/7

ATAG Heating Technology Ltd has been designing and manufacturing boilers for almost 70 years. The company’s manufacturing base is in Lichtenvoorde, Netherlands.  In 1983, ATAG made a decision to concentrate on the manufacture of super-efficient heating products.

ATAG’s iCon heat exchanger was launched in 2013 and is said to outperform anything else on the market.  The company’s confidence in this product is backed by a lifetime replacement guarantee.

In 2001, the company opened up in the UK and has its UK operations office in Dunfermline.  In 2014, ATAG was acquired by the Ariston Thermo Group, a global leader in thermic comfort and energy efficiency.’ The Ariston Thermo Group’s history in the heating business dates back to 1930.

More: ATAG Boiler Reviews & Prices
Website: https://atagheating.co.uk/

16. Ferroli Boilers

Ferroli Boilers logo.

Some of the Features and Benefits of Ferroli Boilers:

  • Combi and system boilers
  • Gas
  • Range of outputs to suit different households
  • Space saving
  • 5 to 10 year warranty available depending on model
  • Energy saving
  • Quick installation
  • Simple to use
  • Environmentally friendly
  • Customer service – Monday to Friday only

Dante Ferroli founded Ferroli in 1955 in Verona, Italy with the same aim that runs the company today – to produce innovative solutions for the heating industry.

Ferroli started its operations in the UK in the 1980's by joining forces with Brassware Sales in the West Midlands, a company which was importing heating products from Italian manufacturers. The company was originally named Brassware Ferroli. The partnership was a success and in 1997, the two companies decided to part company and to work on their own within the UK market. Ferroli UK Ltd. came into being.

Constant growth led to Ferroli relocating to Burton-on-Trent in 2001, where it concentrates on supplying the UK independent market. Ferroli’s strength comes from the fact that everything is done in-house; from the concept and design through the manufacture and marketing. Ferroli now has offices in 14 countries across Europe and Asia.

More: Ferroli Boiler Reviews & Prices
Website: https://www.ferroli.co.uk/

17. Biasi Boilers

BIASI Boilers logo.

Some of the Features and Benefits of Biasi Boilers:

  • Combi and system boilers
  • Gas
  • Wide range of sizes and outputs
  • Compact designs
  • Easy to use and maintain
  • Quick to install
  • Energy efficient
  • Environmentally friendly
  • 5 to 7-year warranty depending on the product
  • Built-in frost protection

Biasi was started by Leopoldo Biasi in 1938 as a thermomechanical business. Dreaming of providing warmth and comfort in people’s homes, Biasi concentrated his efforts on manufacturing residential boilers from the 1940's.

Biasi UK was founded in 1991, with its base in Walsall in the West Midlands and is now a leading supplier to the heating industry in the UK,  In keeping with Leopoldo’s vision of keeping houses warm, the UK also supplies heated towel rails, central heating radiators and LST radiators.  Biasi UK also has a state-of-the-art training facility for both merchants and installers.

Every Biasi product is rigorously tested before it leaves the factory in Italy.  Biasi’s factory in Pordenone manufactures and supplies residential boilers for over 40 markets worldwide.

More: Biasi Boiler Reviews and Prices
Website: https://www.biasi.co.uk/

18. Ariston Boilers

Ariston Boilers logo.

Some of the Features and Benefits of Ariston Boilers:

  • Combi, system and regular boilers
  • Gas
  • Environmentally friendly
  • 2, 5, 8 or 12-year warranty
  • Easy to use and install
  • Compact and quiet
  • Anti-frost device
  • Range of wired and wireless controls available
  • Auto diagnostic system
  • Energy saving

Ariston is part of the Ariston Thermo Group which can trace its history back to the 1930's when Aristide Merloni founded Industrie Merloni in the Marche region of Italy.  The company initially manufactured scales.  It wasn’t until the 1960's that it started to manufacture electric water heaters and gas cylinders.

By the 1970's Ariston was a leader in the Italian water heater market and began expanding into the European market.  The 1980's saw Ariston enter the heating sector and start to manufacture boilers.

Ariston has since grown to be a world leader in the heating and water heating industry, selling its products in over 150 countries. It employs over 7,000 people, has 26 production sites around the globe and an annual turnover of €1.57 billion.

More: Ariston Boilers Reviews & Prices
Website: https://www.ariston.com/en-uk/ 

19. Mistral Boilers

Mistral Boilers logo.

Some of the Features and Benefits of Mistral Boilers:

  • Combi and system boilers
  • Oil
  • Condensing and non-condensing available
  • High-quality casing
  • Energy saving
  • Compact
  • Conventional or balanced flue option
  • Front servicing
  • Can be used in tandem operations
  • Environmentally friendly

Mistral Boilers is one of the UK’s leading manufacturers and suppliers of oil-fired heating solutions, both for the domestic and commercial markets.  The company has over 40 years’ of experience in manufacturing condensing and non-condensing oil-fired heating solutions.

Mistral’s head office and factory is in Telford, Shropshire.  It is here that the company’s research and development division seeks to ensure their products have high efficiencies and low emissions, making them both economical to run and environmentally friendly.

The company’s 40+ years of development have allowed them to produce a comprehensive and effective range of boilers which meet the needs of today’s lifestyle.

More: Mistral Boiler Reviews & Prices
Website: https://www.mistralboilers.com/

20. Warmflow Boilers

Warmflow Boilers logo.

Some of the Features and Benefits of Warmflow Boilers:

  • Combi, system and regular boilers
  • Oil
  • Compact
  • Energy efficient
  • Environmentally friendly
  • 2 to 5-year warranty
  • Some models suitable for outdoor installation
  • Biomass boilers
  • Customer care centre in Lisbon, County Antrim
  • Easy to use and install

Warmflow was founded in Lisburn, Northern Ireland in 1970.  The company is Northern Ireland’s leading manufacturer of oil-fired boilers and has won awards for its products in Ireland, the UK and Europe.  All Warmflow’s boilers are made in Lisburn and the company has offices in Telford, England and in Santander, Spain.

Warmflow has produced the only AA-rated combi boiler in the UK and Ireland.  The company has invested a lot of time and money into renewable technology, developing an award-winning range, from biomass boilers to ground-source heat pumps.  These solutions are ideal for those consumers who are off-grid.

Warmflow is a family-run business which constantly gives back to the communities in which it has a presence.

More: Warmflow Boiler Reviews & Prices
Website: https://www.warmflow.co.uk/

21. Ravenheat Boilers

Ravenheat Boilers logo.

Some of the Features and Benefits of Ravenheat Boilers:

  • Combi, regular and system boilers
  • Gas
  • 2 – 7 years’ guarantee depending on model
  • Energy saving
  • Environmentally friendly
  • Compact and quiet
  • Head office-based customer service centre
  • Quick installation
  • Easy-to-use controls
  • Simple maintenance

Ravensheat is an independent boiler manufacturer. The company was founded in 1987 and has its head office, R & D and training centre in Leeds, UK and two manufacturing plants in Verona, Italy.  Ravensheat factories are capable of producing 80,000 units per annum.

In 1996, Ravensheat developed their first condensing boiler which was many years before they became mandatory in the UK.  The company is now selling more units throughout Europe as more consumers and installers realise that Ravensheat’s boilers and technology are not only affordable but also high-quality products.Website: https://ravenheat.co.uk/ 

22. Johnson & Starley Boilers

Johnson & Starley Boilers logo.

Some of the Benefits and Features of Johnson & Starley Boilers:

  • Combi, system and regular boilers
  • Gas
  • Space saving
  • In-built frost protection
  • In-built anti-seize function
  • Energy saving
  • Environmentally friendly
  • Easy and quick installation
  • Simple controls and maintenance
  • UK-based customer service

Johnson & Starley started providing the UK with heating solutions way back in 1922.  The company was founded by Mr. Johnson and Mr. Starley who were both residents of Blackpool.  They opened a small motor vehicle garage business which left them with gallons of waste motor oil.  Through ingenuity and hard work, they realised that this oil could be used to produce warm air heating systems.  The rest, as they say, is history.

Johnson & Starley are proud of the fact that their boilers are designed and manufactured in the UK.  They continually strive to ensure that their products are ahead of their competitors and meet the needs of the enlightened UK public.Website: https://www.johnsonandstarley.co.uk/

23. Daikin Boilers

Daikin Boilers logo.

Some of the Benefits and Features of Daikin Boilers:

  • Combi boilers
  • Gas and oil
  • Lightweight and compact
  • Modern, sturdy design
  • Front panel for easy maintenance and servicing
  • User friendly
  • Hot water cylinder connection available for high water usage households
  • Energy efficient
  • Environmentally friendly
  • Connection to Daikin Online controller

Daikin is a Japanese company that began trading in 1924.  Although synonymous with air conditioners, Daikin also produces heating solutions from furnaces and condensing boilers to far-infrared electric heaters.

As a fully owned subsidiary of Daikin Industries Limited, Daikin Europe N.V. (DENV) represents Daikin administration, development, assembly and sales in Europe, the Middle East and Africa. Headquartered in Ostend, Belgium, the European production facilities also extend to Plzen and Brno, Czech Republic, Güglingen, Germany and Hendek, Turkey.

Today, the Daikin Europe Group boasts a powerful sales network of 17 affiliate companies, four sales offices and an entire network of independent distributors and sales contacts in more than 50 countries throughout Europe, the Middle East and Africa (EMEA).Website: https://www.daikin.co.uk/

24. Warmhaus Boilers

Warmhaus Boilers logo.

Some of the Benefits and Features of Warmhaus Boilers:

  • Combi boiler
  • Gas – LPG and Natural Gas
  • Compact
  • Easy installation
  • Contemporary/sleek design
  • 19 litres per minute hot water flow
  • Energy efficient
  • Environmentally friendly
  • 8-litre expansion tank
  • UK customer service office – Bedford

Warmhaus was established in 1996 and is an affiliate of the Turkish company, Beyçelik Holdings.  Warmhaus is one of the fourth largest companies in Turkey and produces combi boilers wall-hung condensing and panel radiators.

Warmhaus’ manufacturing facility is in Bursa Nilüfer, where it has the capacity to produce 150,000 combi boilers and 2,700,000 radiators annually.  The company exports its products to over 30 countries globally.

Warmhaus opened in the UK in 2017. It has a sales office and 3000m² warehousing facility in Bedford.

More: Warmhaus Boiler Reviews & Prices
Website: https://www.warmhaus.co.uk/en-gb

25. Intergas Boilers

Intergas Boilers logo.

Some of the Benefits and Features of Intergas Boilers:

  • Combi, system and regular boilers
  • Gas
  • Unique 2-in-1 heat exchanger
  • 3 to 10-year warranty depending on model and part
  • Easy to use and maintain
  • Energy efficient
  • Environmentally friendly
  • Smart boilers
  • Reliable technology
  • UK-based customer service team

Intergas is a Dutch company which has been a leader in domestic boiler manufacture in the Netherlands for well over 50 years. The company was founded in 1939, when it was known as Machinefabriek van de Wetering, specialising in wooden pegs and wooden wash tubs.

It was in the mid 1960's that Intergas started manufacturing heating products and by the early 1990's it was one of the market leading in heating solutions. It was Intergas’ invention of the ‘Double High Efficiency’  heat exchanger in 1996 that changed the face of boiler technology. This state-of-the-art feature is still used today and the company claims that it lowers emissions by 20% and bills by 5% compared with all other condensing boilers in the UK.

More: Intergas Boiler Reviews & Prices
Website: https://www.intergasheating.co.uk/

If you would like some cover for your shiny new boiler, you can find a range of boiler cover policies available here. 

 

Is My Smart Thermostat Compatible With My Boiler – What Is OpenTherm?

With rising energy bills, you may be considering investing in one of the many smart thermostats available with the hopes of bringing down your monthly energy consumption.

With the introduction of smart assistants, it has become much easier to manage everyday tasks without giving them much thought. Companies like Google Nest Thermostat, Hive and Tado all offer compelling products with promises of reducing energy consumption.

The issue is figuring out if your boiler actually supports a smart thermostat. If you have a new boiler, it is likely it will have OpenTherm technology. This guide will help you identify which smart thermostat if any will work with your boiler heating system.

First, we need to dig into the smart thermostats to see which is right for your home. Here are some of the more popular brands and how they match up with other smart devices you may have in your home.

If you have checked the smart thermostat website for compatibility and you cannot find yours listed, do not lose hope! Skip ahead to read about OpenTherm technology as it may still be compatible.

Which Smart Thermostat Should I Buy?

Smart Thermostat Voice Assistant Compatibility Energy Saving Claims Price Check Compatibility
Google Nest Learning Thermostat (Gen 3) Google Assistant, Amazon Alexa, Siri/ Apple Homekit Reduces energy bills by 8.4% and 16.5% annually £180-£219 Click to check the compatibility
Tado Smart Thermostat (subscription required) Google Assistant, Amazon Alexa, Siri/Apple Homekit Save up to 30% on annual energy bills £129.99-£199.99 Click to check the compatibility
Hive Google Assistant, Amazon Alexa, Siri/ Apple Homekit Save up to £110 annually on your energy bills £119-£179 (mini and main model available) Compatible with most gas and LPG boilers

If you cannot find your boiler on the compatibility tools, smart thermostats may work using a system called OpenTherm.

What Is OpenTherm?

OpenTherm is a piece of communication language developed by a company called Honeywell. It was created to allow boilers to communicate with heating controls – this has opened boilers up to a new wave of both standard and smart heating controls.

Many boiler manufacturers such as Baxi, Ideal Boilers, Viessmann and others use OpenTherm technology to be compatible with heating controls from Nest, Tado and others. Whilst the confirmation of OpenTherm on your boiler heating system is good news, compatibility is not always guaranteed. For complete peace of mind before purchasing a new smart thermostat, you should confirm with the boiler manufacturer.

Some boiler cover policies do cover smart thermostats. However, it is worth asking the question to confirm with your chosen provider.

How Do I Manually Check If My Boiler Is Compatible With Smart Thermostats?

If you’re still unsure about the compatibility of your heating system, figuring it means rolling your sleeves up.

Most modern boilers are compatible but a recurring theme for smart thermostats is the need for something called a c-wire (common wire). This is an ongoing power supply for a smart thermostat of run constantly. This is obviously required for any learning thermostat to automatically make adjustments to your home temperature.

Here’s how to check, and these instructions will come with most smart thermostats out of the box. So installation is relatively easy, even if DIY seems a little daunting.

  1. Turn your boiler off – better to be safe than sorry.
  2. You will need to remove your thermostat’s face plate (if you do not have a thermostat, you will need to have a Gas Safe engineer advise you).
  3. Carefully look to see if there’s a cable attached to the thermostat ‘c’ terminal.
  4. If you can’t see the cable, carefully pull the thermostat away from the wall. Do not force this.
  5. You can now check to see if there’s an unused C-cable tucked away.
  6. This c-cable will need to be attached to your smart thermostat – along with matching the other cables accordingly.
  7. If you cannot locate a C-cable you may need to purchase one along with your smart thermostat.
  8. Before removing any wiring, take a picture of the cable set-up to avoid confusion.

If at any point you become unsure, many of the smart thermostat companies have optional installation ranging anywhere from £60 – £200. More detailed instructions specific to your smart thermostat will come with your device.

 

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