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:VTXCOMBI26 EAN Code:5060090371539 Width:614 mm Depth:606 mm Height:860 mm Sub-Category:Domestic Boiler Colour:White Brand:Grant ErP Hot Water Rating:B Warranty:10 Years Energy Efficiency:A Application:Domestic Boiler Model:Vortex Condensing Ready for HVO:Yes Output:26 kW Ready for 20% Hydrogen:No Category:Combi Fuel Type:Oil Includes Magnetic Filter:No