Grant Vortex Pro External 26/46kW Oil Heat Only Boiler

Product Description

The Grant Vortex Pro External 26/46kW Oil Heat Only Boiler is a powerful and highly efficient outdoor heating solution, ideal for larger properties and high-demand heating systems. Designed for external installation, this robust unit combines Grant’s proven condensing technology with a high-performance Riello RDB burner for reliable and efficient operation.

Featuring a durable powder-coated casing and built-in frost protection, this boiler is engineered to withstand harsh weather conditions while maintaining consistent performance. The factory-fitted multi-directional flue simplifies installation, saving time and reducing complexity on-site.

With a high output of up to 46kW and efficiency levels reaching 94.5%, this boiler is perfect for properties requiring strong and dependable central heating.

Why Customers Should Buy This Product

• High 46kW output ideal for large homes and commercial applications
• External installation saves indoor space
• Factory-fitted multi-directional flue for faster installation
• High efficiency (up to 94.5%) reduces fuel consumption
• Durable powder-coated casing for all-weather performance
• Built-in frost protection for cold climates
• Riello RDB burner for reliable, efficient operation
• Biofuel compatible (depending on blend)
• Quiet operation for minimal noise
• Upgradeable warranty up to 5 years with G1 installer
• Trusted quality from Grant

Key Specifications

• Brand: Grant
• Range: Vortex Pro
• Product Type: Oil Heat Only Boiler (External)
• Output: 46kW
• Fuel Type: Oil
• ERP Rating: A
• Efficiency: 90.0% – 94.5%
• NOx Class: Class 2
• Mounting Type: Floor Standing (External)

Dimensions:

• Height: 908 mm
• Width: 370 mm
• Depth: 796 mm

Performance:

• Heat Output: 46 kW
• BTU Output: 156,952 BTU
• CH Condensing Max Output: 46 kW
• Noise Level: 51 dB

Flue Options:

• Max Vertical (125mm): 12 m
• Max Vertical (100mm): 12 m
• Max Horizontal (125mm): 4 m
• Max Horizontal (100mm): 4 m

Features:

• Stainless steel vortex heat exchanger
• Riello RDB compact burner
• Factory-fitted multi-directional flue
• Built-in frost stat and condensate system
• Mains isolating switch and test switch
• External powder-coated casing
• Solar compatible

Warranty:

• Up to 5 Years (when installed by a G1 installer, T&Cs apply)

Installation & Compatibility

• Suitable for traditional heating systems with hot water cylinder
• Ideal for large residential or light commercial properties
• External floor-standing installation
• Compatible with sealed system kits (available separately)

What’s in the Box

• External Heat Only Boiler Unit
• Factory-Fitted Flue
• Installation Instructions

Important Information

• Heat only boiler – requires separate hot water cylinder and cold water storage tank
• Oil-fired system – requires oil storage tank
• Designed for outdoor installation