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Oil Boilers
Vortex Blue: Internal
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Vortex Pro: External Combi
Vortex Boiler House
Vortex Eco: Internal Wall Hung
Vortex Eco: External Wall Hung
Vortex Eco: Internal
Vortex Eco: External
EZ-Fit Internal Low Level Balanced Flues (Yellow System)
EZ-Fit Internal Vertical Balanced Flues (White System)
EZ-Fit Internal High Level Balanced Flues (White System)
EZ-Fit External High Level / Vertical Flues (Green System) for internal boilers
EZ-Fit Flexible Vertical Balanced Flues (Red System)
EZ-Fit Vertical conventional flues (Orange System)
EZ-Fit External Flues (Green System) for outdoor boilers
Oil Boilers
Air Source Heat Pumps
Grant Aerona³ R32 Air Source Heat Pump Range
Grant Aerona³ accessories
Air Source Heat Pumps
Hybrids
Grant VortexAir Range
Grant VortexAir Accessories
Hybrids
Underfloor Heating
Uflex
Uflex MINI
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Uflex Heating Controls
Aluminium Radiators
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Grant Quick Recovery Cylinders
Grant Quick Recovery Integrated Cylinder
Domestic Hot Water (DHW) Boost Kit
Solar Thermal
Grant Solar Collectors
Grant WinterSol
Grant CombiSol
Solar Thermal
Accessories
Grant Vortex Mag One Magnetic Filter
Grant GES264 sequence controller
Grant Low-loss Headers
Grant Zone Pump Kits
Grant GEO360 Weather Compensator
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OFT10-600A/OFT10-105E: Oil Appliance Installation and Oil Storage & Supply Installation
Water Regulations Advisory Scheme (WRAS) Certificate
Hot Water Systems and Safety (including unvented hot water)
Grant Uflex Underfloor Heating
Grant Vortex Condensing Boilers
Grant Combi Boilers
Grant Aerona³ Air Source Heat Pumps (ASHP)
Grant Solar Thermal Systems
OFT10-600A/OFT10-105E/OFT10-101: Oil Appliance Installation, Oil Storage and Supply Installation, and Pressure Jet Servicing and Commissioning
OFT10-101: Oil Pressure Jet Servicing and Commissioning
Pressure Jet Oil Burners
OFT10-600A: Oil Storage and Supply Installation
CIPHE Low Temperature Heat & Hot Water Systems Course and HPA Heat Pump Course
CPD Seminars
eLearning Academy
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Oil Boilers
Vortex Blue: Internal
Vortex Pro: Internal
Vortex Blue: External
Vortex Pro: External
Vortex Blue: Internal Combi
Vortex Pro: Internal Combi
Vortex Blue: External Combi
Vortex Pro: External Combi
Vortex Boiler House
Vortex Eco: Internal Wall Hung
Vortex Eco: External Wall Hung
Vortex Eco: Internal
Vortex Eco: External
EZ-Fit Internal Low Level Balanced Flues (Yellow System)
EZ-Fit Internal Vertical Balanced Flues (White System)
EZ-Fit Internal High Level Balanced Flues (White System)
EZ-Fit External High Level / Vertical Flues (Green System) for internal boilers
EZ-Fit Flexible Vertical Balanced Flues (Red System)
EZ-Fit Vertical conventional flues (Orange System)
EZ-Fit External Flues (Green System) for outdoor boilers
Oil Boilers
Air Source Heat Pumps
Grant Aerona³ R32 Air Source Heat Pump Range
Grant Aerona³ accessories
Air Source Heat Pumps
Hybrids
Grant VortexAir Range
Grant VortexAir Accessories
Hybrids
Underfloor Heating
Uflex
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Underfloor Heating
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Aluminium Radiators
Afinia Radiators
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Fan Convectors
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Grant Quick Recovery Cylinders
Grant Quick Recovery Integrated Cylinder
Domestic Hot Water (DHW) Boost Kit
Solar Thermal
Grant Solar Collectors
Grant WinterSol
Grant CombiSol
Solar Thermal
Accessories
Grant Vortex Mag One Magnetic Filter
Grant GES264 sequence controller
Grant Low-loss Headers
Grant Zone Pump Kits
Grant GEO360 Weather Compensator
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News
Grant UK expands HQ site with new warehouse, meeting suites and showroom
Grant UK increases offering to installers through revamped incentive scheme
Grant UK donates £2,000 to local children’s charity
Grant Aerona³ awarded Highly Commended at National ACR and Heat Pump Awards
Grant UK appoints Renewables Manager
Grant UK expands its training offering in Hawes, North Yorkshire
25 days of Grantmas!
Grant UK now offer air source heat pump packs
Grant UK to stock KBB Fire Valves
Grant UK’s G-CERT Scheme – an installer’s perspective
Which off-gas heating option to choose?
63 oil boilers. 63 Which? Best Buys
Grant UK continues to raise money for Julia’s House
Domestic RHI Tariff Uplifts
Grant UK introduces Kevin Ellis to the Sales Team
Grant UK supports Bath Rugby for a third season
Grant UK adds new models to its Vortex Boiler House range
Grant releases timeline video of Company’s history
Grant makes successful debut at ISH
Grant VortexAir Hybrid is a finalist in the H&V News Awards 2017
Changes to Domestic RHI Scheme in Spring/Summer 2017
Valentine’s Bake Sale in aid of Julia’s House
10 year guarantee on Grant VortexBlue oil boiler range is here to stay!
Grant UK raises £500 for local charity in December
Grant TechBox – December 2016 update
Competition winner joins Grant UK to cheer on Bath Rugby!
Enjoy the best of both worlds with your home heating
Grant UK is going more social!
Grant Engineering will be exhibiting at ISH 2017
Grant UK proudly supports local children’s charity, Julia’s House
Energy & Climate Change Committee now incorporated in Business, Energy & Industrial Strategy Committee
Another award for Grant UK!
Grant VortexBlue takes home gold!
Grant Vortex oil boilers are the No.1 choice in the UK
Grant takes to the track for British Rally competitions
Grant UK turns up the heat for another season with Bath Rugby
Grant UK extends black external fittings throughout EZ-Fit Flue System range
Grant UK takes home heating to new heights at Bristol Balloon Fiesta!
Grant UK celebrates 20 years of trading
Grant UK Installer Evenings spread the word with engineers
Grant introduces new ErP A-rated heat pump cylinder
Grant EZ-Fit Flues now available in black
Merchants to go head to head in charity football match
Grant UK launches the VortexAir: a unique oil and heat pump hybrid
Grant UK makes donation to help eight year old Lucy enjoy the freedom of movement
Flue flashing from Grant – designed with installers in mind
Grant UK G-One accredited installer announced as Installer of the Year 2015
Grant announces industry leading 10 Year Warranty on VortexBlue oil boiler range
Changes to the RHI Scheme: Spring 2016
Grant UK launches small and highly efficient Aerona³ heat pump
Grant UK supports charity ball for Motor Neurone Disease
Grant UK releases series of videos on new blue flame burner
Grant Engineering announces creation of 50 new jobs in Co Offaly
The next generation of off-gas heating: Grant UK to host series of technical evenings
Government led consultation on changes to reduced VAT rates for energy saving materials
Grant UK Training Academy: 2015 in review
London Boiler Cashback Scheme announced
Grant UK introduces even cleaner ‘Blue Flame’ technology to its Vortex range
Grant UK prepares for 20th Anniversary celebrations
New fleet of Grant UK engineer vans now on the road!
Grant UK and Williams & Co Ltd send one lucky installer to Las Vegas!
Grant UK supports Christmas raffle raising funds for cause close to G-One installer’s heart
It’s all in the size of the vessel
When tradition should give way to the latest biomass technology
Grant UK releases series of video case studies for biomass heating
Breakfast Morning dates – November 2015
Grant 2015 Roadshow – November dates
Grant leads the way with wall hung oil-fired boilers
Breakfast morning dates in October
Grant UK scoops two major awards at the Heating and Renewables Awards
Grant 2015 Roadshow – October dates
Grant Training Academy gets a makeover
Grant UK signs as official Business Partner for Bath Rugby
Grant UK supporting the Heating & Renewables Roadshow 2015!
Green Deal Home Improvement Fund to end
Grant UK supports DIY SOS: The Big Build
Renewable technologies industry calls for clarity regarding EU ruling on reduced VAT
Small space? Big deal! Grant UK launches the Vortex Pro Combi XS
Renewables make sense, even without government subsidy
Grant Solar Thermal technologies work in diffused sunlight too
Popular Vortex range welcomes six new boiler models
Championship Golf at Bowood tests Grant Sales Representatives, merchants & installers!
Solar. Hot water you will want to get into
Making the case for biomass
Air we go…
Grant UK supports local Youth Football Tournament
Grant UK exhibiting at Eco Technology Show (Stand W35)
G-One installer named Fastest Growth Company 2015
The importance of fitting Carbon Monoxide alarms with solid fuel, oil, and gas heating systems
Grant Biomass Forum is Now Live!
Grant UK exhibiting at Eco Technology Show (Stand W35) (1)
Grant at Ecobuild 2015
Grant UK happy to help DIY SOS: The Big Build
Biomass boilers: an excellent business opportunity for heating engineers
Vortex Combi upgrade saves installers time and money
New display vans hit the road
Grant pellet stores rolling off the production line
Grant Biomass & RHI tutorials on YouTube
Saving energy with biomass boilers
Grant launches latest ThermaWave range
New Grant Biomass Forum
Proposed changes to biomass fuel purchase in 2015
Vortex Mag-One Magnetic Filter launch
Grant wins prestigious OFTEC excellence award
Grant UK 2014 golf day proves a hit
Genius Energy offers Grant Biomass as part of the RHI
Exhibiting at Brighton’s Eco Technology Show
Additional funding & product preview – Minister Greg Barker visits Grant
Grant Surprise at Ecobuild
Condensing Wood Pellet Boilers approved for Domestic RHI
Grant Goes Greener
Training Academy sees record numbers
Heat Pump Sizing All Figured Out
Grants Growing Service Support
Pumps not phased by power
Hot water you will want to get into
No depression in boiler market
EZ-Fit flues CE ready for new regs
Clever Solar Solutions from Grant
New energy management controls unveiled at Ecobuild
Grant to launch new heat pump at Ecobuild 2013
Grant SpiraVAC to be launched at Ecobuild 2013
Grant Spares now featured online
Green deal cash-back announced for oil condensing boilers
DEFRA approves Grant Spira under Clean Air Act
Grant invests in larger external Service Support Team
OFTEC presents Grant with three prestigious Awards for Excellence
Grant shows innovation with Spira range
Grant Vortex hits 10th year in production
Grant Spira Wood Pellet Range now MCS approved
Become a G-One Accredited Installer
Vortex boiler house and larger outdoor modules launched
Grant website is now carbon neutral
Grant products showcased at biggest Ecobuild yet
Grant Spira pellet boiler wins SEAI award
Scottish Government announce further boiler scrappage funding
See Grant at Ecobuild 2011
New Grant Accredited Heat Pump Installer Scheme
A new era for Grant Wave Cylinders
Grant launches YouTube Channel
Success for Grant at 2010 OFTEC Awards
New Solar Support Kit for Installers
Observing a Grant Aerona³ heat pump installation, step by step
Aerona³ heat pump meets heating needs for new build family home in Carmarthenshire
New Vortex Boiler Houses welcome two homes to the red side
A combination of Grant renewable technologies keep new build home warm in Cardigan
Martin Roberts warms up with a Grant VortexBlue
Living with a Grant Vecta biomass boiler
Ayrshire home joins the hybrid revolution with new Grant VortexAir!
Grant Vecta biomass boiler is helping a 1930s property reduce its carbon footprint
Out with the old and in with the Blue!
19th century cottage now being heated by a Vortex Pro boiler
Out with the old and in with a new Grant Vortex
Colchester United has gone to the green side with a 72kW Spira
Grant Vortex Eco Utility boiler now warming up a Wiltshire farmhouse
The first Vortex Pro Combi XS makes itself at home in Gloucester
Clean and Efficient - Spira gets the thumbs up in Hampshire
Grant biomass boilers earning their keep for homeowners
Spira biomass boiler takes residence at Steadings Park in Suffolk
Grant biomass boilers are keeping installers busy
It is easy being green with a Grant biomass boiler
Property developer chooses Grant Biomass for new build
Townsends take up renewables
Dual fuel is twice as good
Waveney District Council benefits with Grant Solar
East Green Energy lead the way with Grant Spira
Grant Spira biomass boiler cuts fuel bills
Grant Solar tops prestigious Ochre Yards development
Grant Aerona heat pumps aleviate fuel poverty for tenants in Western Isles
Vortex installation secures OFTEC Installer of the Year award for WD Taylor
Installer promotes advantages of renewable heating
Grant Renewables provide solution for Grade II building
Local Authority upgrades sheltered housing with Grant
Grant renewables installed in hostel for homeless
Primary school cuts costs with Vortex boiler house
Green heating for 18th century estate
Green living for States of Guernsey Housing
Grant oil boilers comply with low NOx legislation
New low NOx legislation coming into force in September 2018
Grant UK expands hot water cylinder range
A step by step installation of a VortexBlue by G1 installers RSK
Grant UK unveils brand new website
A home in the Scottish Borders welcomes Grant Aerona³ heat pump
Grant SpiraPod makes green home heating easy
Claire Perry MP officially opens Grant UK’s new Showroom and Meeting Suites
Every G1 Installer can be a winner with Grant UK’s biggest ever promotion!
Grant UK welcomes new Area Sales Manager and Trainees to the team
Air Source Heat Pump metering requirements for Domestic RHI Scheme
New models introduced to the Grant Aerona³ R32 heat pump range
Which? Best Buy Vortex Eco 15/21kW External boiler installed at 1930s home in East Sussex
Grant UK unveils new product line
Grant UK extends Business Partnership with Bath Rugby Club for another season
Grant UK donates Vortex boiler to Jamie’s Farm in Monmouth
Grant oil boilers win Which? Best Buys for second year running
Grant Engineering launches new Group website
Grant UK’s ‘Big G1 Giveaway’ – 2 months down, 4 months to go!
A developer’s perspective on the Aerona³ heat pump
Grant Vortex Oil Boiler and Wave Cylinder improve heating system for Sunflowers at Grafton childcare charity
Two Vortex Pro Utility boilers are keeping a converted farmhouse in Buckinghamshire warm and cosy
Grant UK’s new website & latest heat pump nominated at ACR News Awards
Grant UK’s latest heat pump nominated at National ACR & Heat Pump Awards
VortexAir Hybrid exceeds expectations at family home in Hampshire
Grant Engineering returns to ISH 2019
Grant UK donates £3,000 to Julia’s House
Wiltshire Air Ambulance announced as Grant UK’s chosen charity for 2019
Grant UK’s ‘Big G1 Giveaway’ lives up to expectations!
Grant UK extends product portfolio to include underfloor heating
Grant UK announces the passing of Christine Wakefield
Grant Engineering enjoys another successful ISH exhibition
Find Grant UK on stand D150 at Installer2019
Grant UK welcomes new Sales Manager to the South East
Underfloor Heating product training now available from Grant UK
Grant UK launches Package Solutions Roadshow
Grant TechBox app is now better than ever before!
Quiet Mark awarded to Grant Aerona³ R32 13kW and 17kW heat pumps
Grant UK expands Sales Team to increase National Sales Coverage
Introducing the Afinia Aluminium Radiators from Grant UK
Grant UK’s Big G1 Giveaway is back!
Join Grant UK at InstallerSCOTLAND this September
Grant UK continues long-term partnership with Bath Rugby
Grant Training available at HLI Centre, Livingston this heating season
Grant Uflex underfloor heating system installed in barn conversion
Grant is the only oil boiler manufacturer to achieve Which? Best Buys for three years running
Uflex MINI underfloor heating is the ideal solution for a kitchen refurbishment
Halfway through Grant UK’s ‘Big G1 Giveaway’!
Brand new 64-page Renewable Technologies Brochure unveiled by Grant UK
Grant Aerona³ Heat Pumps are Finalists at National ACR & Heat Pump Awards 2020
Grant UK appoints two Renewable Business Development Managers
A Grant VortexBlue proves to be the ideal boiler replacement for a property in Berkshire
Grant launches new installation packs for Aerona³ heat pumps
Grant Aerona³ heat pump replaces old oil boiler to help a home in Lanark go green
Grant UK presents Wiltshire Air Ambulance with £10,000 donation
Grant Engineering unveils brand new facilities at manufacturing HQ in Co Offaly
Grant UK’s 2019 ‘Big G1 Giveaway’ was another BIG success!
The journey to Net Zero Carbon: Grant UK outlines its vision for heating systems in 2030
Grant UK appoints Stuart McWhinnie as Technical Design Manager
7 year guarantees on Grant heat pumps now available through G1 Installer Scheme
Grant UK welcomes new Renewables Business Development Manager
Grant UK unveils new features to its Company website
Grant Solar Thermal system and thermal store partner up with VortexBlue oil boiler
Grant UK hosts webinar with InstallerFESTIVAL 2020
Consultation now open for heat pump training course qualification criteria
Grant Aerona³ heat pumps feature in NBS National BIM Library
Free ASHP set-up assistance available to installers who are trained through Grant UK Training Academy
New ‘Knowledge Hub’ launched on Grant UK website
Grant UK’s Technical and Customer Service Departments extend their hours including Saturday support
Summer essentials backpacks to support installers and engineers available from Grant UK
Grant UK welcomes Government’s Green Homes Grant scheme
Grant eLearning Academy is unveiled
Five star Trustpilot reviews for Grant oil boilers
Grant UK sponsors local children’s football team for 20/21 season
Renovated farmhouse strives to be carbon neutral with Grant heating system
Grant UK launches #ShowUsYourSnood social media competition
Grant boilers combine choice, quality and service to be an installer’s favourite oil boiler brand
A Grant trio of technologies keep new build home in Perranporth up to temperature
Introducing the Virtual House
Grant UK support G1 Installers with digital assets for their social platforms
Grant UK unveils new 52 page oil boiler brochure
One pair of Grant heat pumps for another pair!
End of Year Message from our MD Paul Wakefield
Grant UK publishes new heat pump brochure dedicated to homeowners
RIBA approved heat pump CPD course now available via Grant eLearning Academy
New slimline cylinders launched by Grant UK
Grant UK donates £10,000 to Wiltshire Air Ambulance charity
Living with a VortexAir Hybrid
From one renewable heating system to another
Riello Statement | Danfoss Nozzles Supplied By FIT Services
New eLearning support for merchants from Grant UK
New heat pump videos now available via Grant UK YouTube channel
Afinia radiator combines sleek design and safe operation for children’s bedroom renovation
Afinia vertical radiators meet the brief for spacious loft conversion
Grant supply new oil boilers to SWAAT Training Centre
Grant oil boilers endorsed by Energy Saving Trust for over fifteen years
Grant UK staff take over 12 million steps fundraising for charity
Grant Aerona³ R32 heat pump shortlisted for Green Home Awards
Grant UK sponsor ‘Heating and Plumbing Merchant of the Year’ at Builders’ Merchants Awards
Rishi Sunak visits Grant UK Training Academy
Join Grant UK for a live online RIBA CPD Roadshow all about heat pumps
Shaun McCarthy joins Grant UK as a Sales Support Engineer
Grant Solar Thermal system helps family home reduce fuel bills
New training facility for online courses at Grant UK Training Academy
Keeping warm from the floor upwards with Grant underfloor heating
Luxury new build farmhouse welcomes Aerona³ heat pump
Caerphilly Council go green with Aerona³ heat pumps
Grant UK release new Aerona³ Heat Pump Handover Guide for homeowners
G1 Installer Highly Commended with Grant boiler installation
Heating System Installer Survey now open
Heat Pump Maintenance Kits from Grant UK
Six Aerona³ heat pumps, four flats, two houses, one sustainable development for locals
Introducing the Grant QR Cylinder range
Grant UK is an Official Partner of Bath Rugby
Dunfermline home makes the switch from oil to a heat pump
New controls and PEX-AL-PEX pipe join Grant underfloor heating range
Grant UK releases heat pump case study video
Grant Engineering welcome biofuel breakthrough
Grant UK’s response to the Government’s plan to drive down the cost of clean heating
New heat pump sound video now available on Grant UK’s YouTube Channel
Charles River Associates and Grant UK publish infographic about decarbonising heating
Danny Kruger MP visits Grant UK’s Head Office
Grant UK sponsors local grassroots mini and junior rugby teams
It’s back! Grant UK launches another winter photo sharing social media campaign #SnapThatHat
Grant UK achieves Cyber Essentials Plus Certification
More rewards join Grant UK’s G1+ Points programme
Aerona³ heat pump helps Colchester Football Club go green
A look back at 2021 with Paul Wakefield, Grant UK’s MD
Changes announced to Part L, F and O of the Building Regulations
Grant UK welcomes new Area Sales Manager for East Anglia
Grant UK proudly donate £15,000 to Wiltshire Air Ambulance
Contact Us
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Trainer/Assessor
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Blog
Five Top Tips to help look after your Oil Boiler
Sealed Systems and the importance of the expansion vessel
Getting to know underfloor heating [Part One]
Getting to know underfloor heating [Part Two]
The importance of Blygold treatment for air source heat pumps
How to bleed an oil burner
Five Top Tips to help look after your Heat Pump
Understanding the benefits of R32 refrigerant in heat pumps
Why size does matter when it comes to heat pumps
Maximising the benefits of combined heating technologies
Getting your home heat pump ready
Be in the know with blue flame boiler technology
Five reasons why renewable installers should become a G-CERT Sub-Contractor
How to order a Grant heating system
Multi-zone wiring centre for Grant heat pumps
Looking after solar thermal systems – it is simple but important
Do Grant heat pumps need planning permission?
Dispelling the myths around heat pumps
How to control your heat pump
Biofuel compatibility with Grant boilers
What is the Boiler Upgrade Scheme?
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Maximising the benefits of combined heating technologies
Getting to know underfloor heating - design, compatibility & versatility
Getting to know underfloor heating - performance & installation
Understanding net zero carbon targets and how they can be achieved
Government Incentives & Initiatives
Getting your home heat pump ready
The truth about heat pumps – dispelling the myths
How quiet are air source heat pumps?
Education Area
What is an air source heat pump?
What is a hot water cylinder?
What is solar thermal?
What is hybrid heating?
What are fan convectors?
What is underfloor heating?
What is weather compensation?
What is biofuel?
Case Studies
Grant Aerona³ heat pump replaces old oil boiler to help a home in Lanark go green
Grant Uflex underfloor heating system installed in barn conversion
VortexAir Hybrid exceeds expectations at family home in Hampshire
Grant renewable technologies keep new home warm in Cardigan
Uflex MINI underfloor heating is the ideal solution for a kitchen refurb
Grant Vecta biomass boiler is helping a 1930s property reduce its carbon footprint
A Grant trio of technologies keep new build home in Perranporth up to temperature
Living with a VortexAir Hybrid
Afinia radiator combines sleek design and safe operation for children’s bedroom renovation
Grant Solar Thermal system helps family home reduce fuel bills
Luxury new build farmhouse welcomes Aerona³ heat pump
The Grant House
Intro
Meet the Family
Homeowner Testimonial (1)
Meet the Installer
Installer Testimonial (1)
The Products
Aerona3 Air Source Heat Pump
High Performance Cylinder
Uflex Underfloor Heating
Uflex Mini Underfloor Heating
Afinia Aluminium Radiators
Renewable Heat Incentive
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Homeowner Testimonial (2)
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Frequently Asked Questions
Do air source heat pumps work with normal radiators?
Can a heat pump be connected to an existing hot water cylinder?
How does the defrost cycle work on Grant Aerona³ heat pumps?
Does underfloor heating work the same way as a radiator?
Which type of flooring is best for underfloor heating?
Why should I keep my underfloor heating system running constantly
Is planning permission required for solar thermal panels?
What is a condensing oil boiler and why is it more efficient?
What is an energy efficient boiler?
Which oil boiler is best for my home?
What is a combi boiler?
What size of boiler do I need?
Is Grant UK a member of RECC?
What is the difference between a Monovalent system and a Bivalent system?
Will I save money switching from my current boiler to a heat pump?
Can I reduce the carbon emissions from my boiler?
Advantages and disadvantages of heat pumps
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