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48 Years
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Sustainable Heating Solutions for UK Homes
Grant UK has been a leader in sustainable heating solutions since 1978, specialising in high-efficiency oil boilers, air source heat pumps, and hybrid systems. Our commitment to innovation has earned over 35 awards, recognising our expertise in renewable technologies and customer support. We prioritise reducing carbon emissions through HVO-compatible boilers and MCS-approved heat pumps eligible for government grants. With comprehensive product ranges including underfloor heating, radiators, and hot water cylinders, we provide complete heating systems tailored to modern homes. Our dedicated support services, including ServicePlan and a nationwide installer network, ensure long-term reliability.

Backed by decades of experience and partnerships with organisations like Bath Rugby Club for sustainability initiatives, we combine technical excellence with environmental responsibility. Our products meet rigorous standards, including Quiet Mark accreditation for low-noise operation. Through initiatives like the Start with Grant programme, we empower installers to transition to low-carbon technologies. Our virtual house and knowledge hub offer educational resources to help homeowners make informed decisions. This combination of heritage, innovation, and customer-centric support establishes Grant UK as a trusted authority in sustainable home heating.
Services
Oil Boilers Air Source Heat Pumps Hybrid Heating Systems Underfloor Heating Aluminium Radiators Solar Thermal Systems Hot Water Cylinders Product Support Installer Network Service Plans
Details
  • Year established: 1978
Highlights and features
  • Over 40 years of experience in heating system innovation
  • Award-winning products with over 35 industry recognitions
  • Invested in renewable technology transitions since 2012
  • Comprehensive support including ServicePlan and installer network
  • HVO-compatible boilers enable immediate carbon reduction
Associations and certifications
  • Quiet Mark
  • MCS (Microgeneration Certification Scheme)
Services
Air Source Heat Pumps
Our Aerona and Aerona 290 air source heat pumps use R32 and R290 refrigerants for high efficiency. Eligible for Boiler Upgrade Scheme grants, they feature smart controls and Quiet Mark accreditation. Designed for UK climates, these systems reduce carbon emissions while maintaining performance in low temperatures.
Oil Boilers
HVO-compatible Vortex oil boilers offer immediate transition to biofuel. Available in floor-standing, wall-hung, and combi models with up to 10-year guarantees. Over 40 years of engineering expertise ensures high efficiency through advanced burner technology and corrosion-resistant heat exchangers.
Hybrid Heating Systems
VortexAir hybrid systems combine heat pumps with oil boilers for optimal efficiency. EvoLink technology intelligently switches between renewable and traditional sources based on demand. Provides future-proof flexibility while maintaining existing infrastructure investments.
Underfloor Heating
Uflex and Uflex MINI underfloor heating systems integrate with renewable technologies. Pre-assembled manifolds and smart controls ensure even heat distribution. Compatible with both new builds and retrofit projects, offering space-saving warmth through low-profile designs.
Solar Thermal Systems
Grant Solar Collectors provide domestic hot water through evacuated tube technology. WinterSol and CombiSol systems work with heat pumps or boilers for year-round efficiency. EZ-Fit flue systems simplify installation while maintaining aesthetic integration with building design.
Questions
Are Grant heat pumps eligible for government grants?
Yes, our MCS-approved Aerona 290 heat pumps qualify for the Boiler Upgrade Scheme, offering up to £7,500 in funding for eligible homeowners.
Can existing oil boilers convert to biofuel?
All Vortex oil boilers are HVO-compatible, allowing conversion to Hydrotreated Vegetable Oil through simple burner adjustments without replacing the entire system.
How do I find a certified installer?
Use our online locator tool to find G1-certified installers qualified to fit, service, and maintain Grant heating systems across the UK.
What guarantees apply to Grant products?
Aerona 290 heat pumps include a 7-year guarantee, while Vortex boilers offer up to 10 years when installed by certified professionals.
Do you offer support for renewable heating systems?
Yes, ServicePlan provides scheduled maintenance for heat pumps, cylinders, and solar systems, with access to technical support and replacement parts.
Are Grant products compatible with smart controls?
Our systems integrate with Aerona Smart Controllers for remote monitoring, optimising efficiency through adaptive learning algorithms and real-time adjustments.
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