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, 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


  • Grant Biomass Forum is Now Live!

    • Our new biomass forum is finally up and running fully! We found that there was a real lack of easily-accessible information about biomass boilers and systems online, and not everyone wants to go through product manuals they don’t know much about! This was what inspired us to create the Biomass […]

  • Grant UK exhibiting at Eco Technology Show (Stand W35)

    • Visitors to the Eco Technology Show on 11th & 12th June 2015 with an interest in renewable heating have the chance to see the latest Grant Spira biomass boiler first hand on the Grant UK stand (no. W35). The Spira is a condensing wood pellet boiler, which is available in […]

  • Grant Biomass Forum is Now Live!

    • Our new biomass forum is finally up and running fully! We found that there was a real lack of easily-accessible information about biomass boilers and systems online, and not everyone wants to go through product manuals they don’t know much about! This was what inspired us to create the Biomass […]

  • Grant UK exhibiting at Eco Technology Show (Stand W35)

    • Visitors to the Eco Technology Show on 11th & 12th June 2015 with an interest in renewable heating have the chance to see the latest Grant Spira biomass boiler first hand on the Grant UK stand (no. W35). The Spira is a condensing wood pellet boiler, which is available in […]

  • Grant Biomass Forum is Now Live!

    • Our new biomass forum is finally up and running fully! We found that there was a real lack of easily-accessible information about biomass boilers and systems online, and not everyone wants to go through product manuals they don’t know much about! This was what inspired us to create the Biomass […]

  • Grant UK exhibiting at Eco Technology Show (Stand W35)

    • Visitors to the Eco Technology Show on 11th & 12th June 2015 with an interest in renewable heating have the chance to see the latest Grant Spira biomass boiler first hand on the Grant UK stand (no. W35). The Spira is a condensing wood pellet boiler, which is available in […]

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