Grant Vortex Pro Internal 21kW Oil Combi Boiler VTXCOMBI21

The Grant Vortex Pro Internal Combi 21 is a compact oil-fired combination boiler that delivers both space heating and mains-pressure domestic hot water from a single white-cased unit. Designed for utility-room installations, the 21 kW model (product code VTXCOMBI21) offers 21 kW set and max output, a declared efficiency of 90.81%, Class 2 NOx emissions, XL load profile and an a Heating b Water energy rating. Dimensions: 860 mm high, 614 mm wide and 614 mm deep; weight 160 kg. Key features include large low-water-content heat exchangers for improved hot water performance, a supplied 24 litre expansion vessel, neon diagnostic indicators for user-friendly operation, compatibility with Grant EZ-Fit flue systems and biofuel compatibility depending on blend. A 10 year guarantee is available when installed by a G1 installer (terms apply).