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Grant Vortex Indoor



IITC CODE Standard Model Outputs
GCSTD5070 50-70,000Btu/hr (15-21kW)
GCSTD5090 50-90,000Btu/hr (15-26kW)
GCSTD90120 90-120,000Btu/hr (26-36kW)
GCSTD120155 120-155,000Btu/hr (36-46kW)
GCSTD155200 155-200,000Btu/hr (46-58kW)
GCSTD200240 200-240,000Btu/hr (58-70kW)


IITC CODE System Model Outputs:
GCS5090 50-90,000Btu/h (15-26kW)
GCS90120 90-120,000Btu/h (26-36kW)
GCS120155 120-155,000Btu/h (36-46kW)

A high efficiency condensing range of free standing internal oil-fired boilers
designed for utility and kitchen installation, the range features the ‘award winning’ unique Grant Vortex stainless steel condensing heat exchanger and tubulator baffle system.

The 50-70 utility model has been designed to fit within a kitchen unit and, due to its reduced width, can be used as a direct replacement for most older oil fired boilers.

• High efficiency SEDBUK ‘A’ Rating
• Features a Riello RDB Burner
• Whisper quiet operation
• Full front service access
• Fully approved to OFTEC Standard and EC directives
• Simple and quick to install with no complicated wiring
• One year manufacturer’s warranty with five year guarantee on boiler heat exchanger



Condensing Oil Boilers
EZ Fit Flue Guide
Installer Technical Data