10 year guarantee when installed by a G1 Installer, T&Cs apply To activate this decade long guarantee, G1 Installers simply need to fit a Grant Mag One filter and register the boiler within thirty days of installation via the online G1 Portal or G1 Click app. Manufacturer Stock Code:VTXS15/26 EAN Code:5060090370082 Width:470 mm Depth:603 mm Height:860 mm Sub-Category:Domestic Boiler Colour:White Brand:Grant Warranty:10 Years Energy Efficiency:A Application:Domestic Boiler Model:Vortex Pro Ready for HVO:Yes Output:26 kW Ready for 20% Hydrogen:No Category:System Fuel Type:Oil Includes Magnetic Filter:No