Grant offer energy efficient fossil fuel and renewable heat technologies. These include: the Vortex oil-fired condensing boiler, solar thermal systems, air source heat pumps and Spira condensing biomass boilers. Grant combines precision engineering, innovation, performance and value for money to produce sustainable heating solutions that are trusted by both installers and householders. The company designs all products so that customers can be sure that the durability and efficiency of equipment are sector leading. Their belief in simple solutions ensures that, while the technology is sophisticated, the products are low maintenance and easy to install.