The Grant Vortex Pro 26kW is an external floor-standing combination oil boiler designed to provide complete domestic heating and instantaneous hot water without requiring an internal storage cylinder. Operating with a high-performance stainless steel heat exchanger and advanced Riello Low NOx burner technology, the unit strictly adheres to current low NOx emission targets while achieving an ErP A-rating for central heating. It features an impressive flow rate of 17 litres per minute, ensuring consistent hot water delivery for demanding residential applications.

Housed in a heavy-duty, powder-coated weatherproof casing, the boiler is engineered for external siting, freeing up valuable interior property space. The system comes equipped with a built-in 24-litre expansion vessel, a high-efficiency circulating pump, and integral frost protection to safeguard components during extreme winter conditions. Weighing 206kg and measuring 945mm x 658mm x 754mm, the robust chassis includes front-facing neon diagnostic indicators and a system pressure gauge to facilitate straightforward maintenance and servicing by oil heating engineers.

Q: What is the primary material of the heat exchanger?
A: The primary heat exchanger is constructed from heavy-duty stainless steel for enhanced thermal retention and longevity.

Q: Does the unit have internal frost protection?
A: Yes, it incorporates a built-in frost protection thermostat to prevent freezing damage in cold external environments.

Q: What is the domestic hot water flow rate?
A: The combination boiler delivers a substantial hot water flow rate of 17 litres per minute to multiple outlets.

Q: Are there diagnostic displays on the boiler?
A: The system features built-in neon diagnostic indicators to assist engineers with rapid fault identification and servicing.