The Grant Vortex Pro 36kW is a high-capacity external combi oil boiler explicitly engineered to deliver powerful central heating and instant domestic hot water without the need for a separate internal storage cylinder. Designed specifically for exposed outdoor installation, this robust floor-standing unit is housed within a premium powder-coated casing that provides exceptional weather resistance and features fully integrated frost protection. Operating at an impressive SEDBUK SAP 2009 efficiency rating of up to 94.5 percent, it utilises patented stainless steel heat exchangers combined with an advanced low NOx Riello burner to ensure maximum thermal transfer and strict environmental emission compliance.

Weighing a substantial 225kg with a highly compact external footprint of 945mm by 658mm by 754mm, this heavy-duty boiler is an ideal hydraulic solution for larger rural properties where internal utility space is strictly restricted. It comes fully equipped with a factory-fitted multi-directional exhaust flue, an integrated 24-litre expansion vessel, and clear neon diagnostic indicators for highly streamlined routine servicing. Operating with exceptionally low acoustic noise levels, the unit features an internal condensate trap that can be routed externally, offering heating engineers a versatile, highly efficient oil-fired solution that performs reliably in all extreme weather conditions.

Q: What is the maximum heating output of this boiler?
A: This model provides a powerful 36kW output, suitable for large domestic properties.

Q: Is the unit protected against freezing winter conditions?
A: Yes, it features an insulated casing and built-in frost protection for safe external operation.

Q: Does this boiler require a separate hot water cylinder?
A: No, as a combi boiler, it provides instant domestic hot water directly from the unit.

Q: What type of burner does this model utilise?
A: It incorporates a highly efficient, low NOx Riello burner to minimise environmental emissions.