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    • Oil Boilers
      • Grant Vortex Utility
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      • Grant Vortex Boiler House
      • Grant Vortex Indoor Combi
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      • Grant Euroflame Indoor
      • Grant Euroflame Outdoor
      • Grant Euroflame Boiler House
    • Flues
      • EZ Fit Internal Low Level Balanced Flue (yellow system)
      • EZ Fit Blue Single Wall Flue Kit
      • EZ Fit Flue Internal High Level Balanced Flue (White System)
      • EZ Fit Flue Internal Vertical Balanced Flue (White System)
      • EZ Fit Vertical Conventional Flue (Orange System)
      • EZ Fit External Flue (green system) for outdoor boilers
    • Air Source Heat Pumps
      • Grant Aerona R290 Air Source Heat Pump
      • Grant Aerona³ R32 Air Source Heat Pump Range
      • Grant Aerona Smart Controller
      • Grant Aerona³ Accessories
      • Grant Multiple Package Solutions
    • Cylinders
      • Grant High Performance Cylinders
      • Grant Pre Plumbed Cylinders
      • Grant Integrated Unit
    • Underfloor Heating
      • Uflex Underfloor System
      • Uflex System Controls
    • Afinia Radiators
      • Afinia Radiators
    • Solar Thermal
      • Grant Solar Thermal
      • Grant Solar Thermal Accessories
    • Biomass Boilers
      • Grant Spira
      • Biomass Flue System for Spira and Vecta Boilers
      • Grant Spira Pell
    • Spares
      • Grant Boiler Part Spares
    • Accessories
      • Grant Vortex Mag One Magnetic Filter
      • G1000 Inhibitor
      • Fire Valve
    • Integrated Heating Packages for New builds
      • Package 1 Example – Heat pump, cylinder & underfloor heating.
      • Package 2 Example – Heat pump, Cylinder, underfloor heating & aluminium radiator combination
      • Package 3 Example – Heat pump, cylinder & aluminium radiators.
      • Package 4 Example – Heat Pump & cylinder
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      • CPD training for Architects, Engineers, Energy Assessors, etc
      • Wood Pellet Training
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      • Underfloor, Alu Rad & Solo Rad
      • Heating Controls
      • Power Flushing
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• Products
  • Oil Boilers
    • Grant Vortex Utility
    • Grant Vortex External
    • Grant Vortex Boiler House
    • Grant Vortex Indoor Combi
    • Grant Vortex Outdoor Combi
    • Grant Euroflame Indoor
    • Grant Euroflame Outdoor
    • Grant Euroflame Boiler House
  • Flues
    • EZ Fit Internal Low Level Balanced Flue (yellow system)
    • EZ Fit Blue Single Wall Flue Kit
    • EZ Fit Flue Internal High Level Balanced Flue (White System)
    • EZ Fit Flue Internal Vertical Balanced Flue (White System)
    • EZ Fit Vertical Conventional Flue (Orange System)
    • EZ Fit External Flue (green system) for outdoor boilers
  • Air Source Heat Pumps
    • Grant Aerona R290 Air Source Heat Pump
    • Grant Aerona³ R32 Air Source Heat Pump Range
    • Grant Aerona Smart Controller
    • Grant Aerona³ Accessories
    • Grant Multiple Package Solutions
  • Cylinders
    • Grant High Performance Cylinders
    • Grant Pre Plumbed Cylinders
    • Grant Integrated Unit
  • Underfloor Heating
    • Uflex Underfloor System
    • Uflex System Controls
  • Afinia Radiators
    • Afinia Radiators
  • Solar Thermal
    • Grant Solar Thermal
    • Grant Solar Thermal Accessories
  • Biomass Boilers
    • Grant Spira
    • Biomass Flue System for Spira and Vecta Boilers
    • Grant Spira Pell
  • Spares
    • Grant Boiler Part Spares
  • Accessories
    • Grant Vortex Mag One Magnetic Filter
    • G1000 Inhibitor
    • Fire Valve
  • Integrated Heating Packages for New builds
    • Package 1 Example – Heat pump, cylinder & underfloor heating.
    • Package 2 Example – Heat pump, Cylinder, underfloor heating & aluminium radiator combination
    • Package 3 Example – Heat pump, cylinder & aluminium radiators.
    • Package 4 Example – Heat Pump & cylinder
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  • News
    • GRANT Wins ‘Best Renewable Energy Product’
    • Grant Back Boiler Makes a Comeback!
    • Full Range of Spare Parts for Boilers Now Available
    • New Flueing Options for Installers
    • Grant EZ-Fit Compliant with CE Standard For Flues
    • Non Condensing Boilers No Longer Available
    • Stephen Grant Receives Industry Achievement Award
    • Installers Information Evening in Newcastle
    • Belfast SelfBuild Show
    • Grant Win Top Prize at SEAI Energy Show 2015
    • Balmoral Show 2016
    • Plumb Power and Heat Expo, Belfast
    • Think Boilers, Think Prizes, with GRANT!
    • Win a Volkswagen Transporter Van!
    • GRANT Scores a Hat-trick at Top Industry Awards
    • Why Grant? Ask Which?
    • Grant Showcases Award-Winning Boiler Range in France
    • Self Build Live Belfast Exhibition Marks Successful Start to 2018 for Grant
    • Grant Roadshow Visiting Merchants Throughout Northern Ireland
    • Grant Oil Boilers Champion EU Compliance
    • Grant Launches Dedicated Aerona3 Air Source Heat Pump Website
    • Grant Training Academy Champions Industry Development
    • Swimming Pool Boiler – New build, Co Tyrone
    • GRANT NI Vortex Boilerhouse | The leading boiler for schools
    • Showcasing Innovative Technology at the Self-Build Live, Dublin and The Ploughing
    • Grant set to unveil entire Aerona3 R32 air source heat pump range at 2019 National Ploughing Championships
    • Grant offers Multiple Package Solution
    • Helping you with your boiler upgrade
    • Add a little green energy to your home
    • Add a touch of efficiency to your home
    • Oil continues to be the cheapest way to heat your home
    • 40 Years of Engineering Excellence
    • Building a new home?
    • Benefits of home heating oil
    • When is the time to upgrade your boiler?
    • Get the most out of your boiler this winter
    • Purchasing a new boiler?
    • A+++ Aerona3 R32 air source heat pump range now available
    • The only oil boiler manufacturer to achieve Which? Best Buys for three years running
    • Grant’s Training Academy dates announced
    • Grant Aerona3 R32 13kW and 17kW air source heat pumps achieve Quiet Mark recognition
    • Grant launches new product lines
    • Grant launches new Uflex Underfloor Heating
    • Official opening of our newly expanded facilities
    • New hybrid technology – EVOLINK
    • Showcasing innovative technology at our first trade show of 2020 – Self Build Live, Belfast
    • SAFETY ADVICE FOR INSTALLERS & SERVICE ENGINEERS
    • Your Questions Answered
    • Save time and maximise efficiencies with our Home Heating Design Service
    • Grant Tech Talk webinar series launched
    • Product Spotlight - Solar Thermal
    • Grant’s latest Training Academy dates announced
    • Why you should choose an air source heat pump to future-proof your home
    • Our award-winning Vortex range is now Biofuel compatible
    • Sustainable Technologies – The future of Home Heating
    • The ‘hidden’ benefits of installing Uflex underfloor heating
    • Grant is helping to advance the deployment of renewables in the UK & Ireland
    • Grant launches new neoApp as part of neoHub controls system
    • Grant launches new Integrated Unit
    • Aerona³ heat pump range offers exceptional home heating efficiencies at low temperatures
    • Choosing the correct boiler for your home
    • A guide to the Grant hot water cylinder range
    • Grant announces sponsorship of golf star Tom McKibbin
    • Grant invests over £200k in R&D to support drive for biofuel to heat homes
    • Simple steps to ensure your home is heat pump ready
    • Merchant installs Grant Aerona³ R32 heat pump to heat showroom
    • 2021 Round Up
    • Grant leads the way to Innovation success
    • Grant joins Octabuild
    • Grant announces streamlining of oil boiler ranges
    • Grant Vortex Module Update
    • Grant Aerona³ R32 air source heat pump wins prestigious industry award
    • Grant launches new Spira Pell Boiler
    • Important changes to Building Regulations in Northern Ireland
    • HVO biofuel Grant Vortex wins ‘Innovative Product of the Year’ at Northern Ireland Plumbing & Heating Awards 2022
    • 2022 Round Up
    • Brand-new Grant EZ-Fit Flue Guide for Grant Vortex and Euroflame Boilers launched
    • Reillo Flame Sensor Connection Update Announced
    • First home in Northern Ireland to be heated with HVO biofuel
    • Highlights from 2023
    • Two new training courses added to the Grant eLearning Academy
  • Contact Us
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• Knowledge Hub
  • Tips & Advice
    • The ‘hidden’ benefits of installing Uflex underfloor heating
    • Why you should choose an air source heat pump to future-proof your home
    • Choosing the correct boiler for your home
    • A guide to the Grant hot water cylinder range
    • Save time and maximise efficiencies with our Home Heating Design Service
    • Simple steps to ensure your home is heat pump ready
    • Top tips to save money using your heat pump
    • How an integrated heating package will benefit your home
    • Adding smart heating controls to improve home heating efficiencies
    • Combining technologies to maximise the benefits of your home heating system
    • New Year, New Home? Let us guide you through your home heating journey.
    • Benefits of installing Grant Uflex Underfloor Heating
    • How much does Underfloor Heating cost?
    • Benefits of installing a Grant Solar Thermal System
    • Top Tips to keep your home heating efficient during the Winter months
    • Is it time to upgrade your boiler?
    • Top tips to keep your heat pump operating at optimum efficiency
    • How to heat your new build home
    • Does Grant offer training opportunities?
    • The importance of correctly sizing your heat pump for your property
    • How do I calculate how much underfloor heating is needed in my home?
    • The importance of getting your air to water air source heat pump serviced
    • Professional Home Heating Design & Specification by Grant
    • A conversation with Stephen Grant
    • Why are heat loss calculations so important when choosing your home heating system?
    • How Grant is setting the highest standards in Home Heating Design and Aftercare
    • How Grant home heating technologies are contributing to reducing carbon emissions in Irish homes
    • How your new-build home could benefit from Grant Uflex Underfloor Heating
    • What is R290 Refrigerant?
  • Education Area
    • What is biofuel?
    • What is an air to water air source heat pump?
    • What is a condensing oil boiler?
    • What is a hot water cylinder?
    • What is underfloor heating?
    • What are aluminium radiators?
    • What is solar thermal?
    • What is a wood pellet boiler?
    • What are smart controls?
    • What are fan convectors?
    • What is weather compensation?
    • First home in Northern Ireland to be heated with HVO biofuel
  • The Grant House
  • Case Studies
    • Semi-detached home in Portmarnock receives a heating upgrade
    • Renovation and upgrade project in Birr, Co. Offaly welcomes new Aerona³ R32 air to water air source heat pump
    • New build home in Athlone installs Grant Aerona³ heat pump in a bid to increase sustainability
    • Modern New Build Project in Westport installs a Grant Integrated Heating Package
    • Impressive Westport new build installs two Grant Aerona³ heat pumps
    • A self-build in Offaly has turned into a sustainable, dream home thanks to Grant integrated heating solutions
    • A beautiful new build bungalow in Clareen is the perfect A rated energy efficient home
    • Co Offaly new build installs a sustainable Grant Integrated Heating Package
    • 10kW Grant Aerona³ R32 heats the Treacy family home
    • Exclusive Co. Down new build benefits from Grant Integrated Heating Package
    • Modern Coastal Self-Build in Co. Antrim Benefits from Grant Integrated Heating System
    • Co. Down home benefits from sustainable heating technology
  • FAQs
  • Virtual House
  • Glossary
  • Government Incentives
  • Home Heating Guide

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