Tel: 01380 736920 | Email: info@grantuk.com
Oil Boilers, Biomass Boilers, Solar PV, Air Source Heat Pumps, Hot Water Cylinders

Welcome to Grant UK

As a leading heating company in the UK and Ireland (see Grant Ireland), we have been designing and manufacturing reliable and easy to install heating products for over 35 years.

From our award winning Vortex oil-fired condensing boilers to the latest renewable technologies like solar thermal, air source heat pumps, cylinders and the new Spira condensing biomass boilers (wood pellet), our heating systems have a reputation for quality that is second to none.

We combine precision engineering, innovation, performance and value for money to produce sustainable heating solutions that are trusted by both installers and householders. There is never a compromise on quality. We design all products so that you can be sure that the durability and efficiency are sector leading. Our belief in simple solutions ensures that, while our technology is sophisticated, our products are low maintenance and easy to install. For a high quality, reliable and sustainable heating system, trust in Grant.



Our Products
Oil Fired Condensing Boilers
Heating Controls
Solar Thermal
Hot Water Cylinders
Air Source Heat Pumps
Grant Biomass Boilers
Information Downloads


  • Townsends take up renewables

    • Established in 1945, W.J Townsend & Son is a family run business providing domestic customers in Towcester and surrounding areas with a comprehensive range of plumbing and heating services. The business has been in the family for over 75 years with William John Townsend, founding the company. Andy his son […]

  • Dual fuel is twice as good

    • A large residence in Norfolk converts from a standard oil fired system to a renewable biomass boiler and condensing oil boiler combination, reaping the benefits of both high product efficiency and low running costs. This beautiful 19th century, six bedroomed residence on the Norfolk Broads has undergone a complete heating […]

  • Townsends take up renewables

    • Established in 1945, W.J Townsend & Son is a family run business providing domestic customers in Towcester and surrounding areas with a comprehensive range of plumbing and heating services. The business has been in the family for over 75 years with William John Townsend, founding the company. Andy his son […]

  • Dual fuel is twice as good

    • A large residence in Norfolk converts from a standard oil fired system to a renewable biomass boiler and condensing oil boiler combination, reaping the benefits of both high product efficiency and low running costs. This beautiful 19th century, six bedroomed residence on the Norfolk Broads has undergone a complete heating […]

  • Townsends take up renewables

    • Established in 1945, W.J Townsend & Son is a family run business providing domestic customers in Towcester and surrounding areas with a comprehensive range of plumbing and heating services. The business has been in the family for over 75 years with William John Townsend, founding the company. Andy his son […]

  • Dual fuel is twice as good

    • A large residence in Norfolk converts from a standard oil fired system to a renewable biomass boiler and condensing oil boiler combination, reaping the benefits of both high product efficiency and low running costs. This beautiful 19th century, six bedroomed residence on the Norfolk Broads has undergone a complete heating […]

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