Supplying Grant Outdoor Condensing Combi Oil Boiler 21kW | Grant Boilers | Oil Boilers

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Grant Vortex Pro External Combi Oil Boiler 21kW

- Ref: PBH018355

Grant developed their first oil-fired Outdoor Module in 1986 and although the concept was new to the oil market, it quite quickly became a popular addition to Grant’s boiler range. It is therefore appropriate that Grant has again taken the lead with the introduction of three new Grant Vortex Condensing oil-fired Outdoor Modules, with outputs between 15 and 46 kW (50-157,000Btu/h) and gross seasonal efficiencies of 95-97%.

The Grant Vortex Pro External Combi Oil Boiler features a larger heat exchanger that will increase hot water performance, a 'low system pressure cut-off switch', and two extremely accurate temperature controls. These controls allow the boiler to provide instant hot water whilst in condensing mode. The Grant Vortex Pro External Combi Oil Boiler 21kW produces 15 Litres Per Minute with a recovery time of approximately 4 minutes.

Oil Boiler Specification

Height (mm)	Width (mm)	Depth (mm)	Output (kW)	Output (btu)	Flow Rate (l/min)	Flow Connection (mm)	Return Connection (mm)
945	658	754	21	70,000	15	22	22