Grant Vortex Pro Internal 46-70KW External | includes Installation

Description

The Grant Vortex Pro External 46–70kW Oil Boiler is a high-output, high-efficiency external oil boiler designed for large homes and properties with high heating demand. Built to Grant’s premium Vortex Pro specification, this model delivers powerful and reliable central heating while maintaining excellent efficiency and low emissions.

Designed for external installation, the boiler is housed in a weatherproof casing, making it ideal where internal space is limited or where an outdoor installation is preferred. As a heat-only boiler, it is intended for use with a hot water cylinder, making it suitable for traditional and larger multi-zone heating systems.

This boiler features Grant’s proven stainless-steel heat exchanger, advanced condensing technology, and a high-quality oil burner to ensure long-term reliability, quiet operation, and consistent performance. The Vortex Pro range is also HVO-ready, helping future-proof your heating system as fuel standards evolve.

Key Features of the Grant Vortex Pro External 46–70kW

✅ 46–70 kW Output Range – Ideal for large properties and high heat demand
✅ External Weatherproof Design – No internal boiler space required
✅ High Efficiency (90%+) – Condensing technology helps reduce fuel consumption
✅ Low NOx Burner – Cleaner combustion that meets environmental standards
✅ Stainless-Steel Heat Exchanger – Built for durability and long service life
✅ Quiet & Reliable Operation – Suitable for residential environments

Why Choose the Grant Vortex Pro External 46–70kW Oil Boiler?

✔️ Powerful & Dependable – Designed for demanding heating systems
✔️ Space-Saving Solution – Keeps indoor areas free from boiler equipment
✔️ Efficient & Cost-Effective – High output without unnecessary fuel waste
✔️ Future-Ready – Compatible with HVO (Hydrotreated Vegetable Oil) biofuel blends

The Grant Vortex Pro External range is engineered for homeowners who need maximum heating performance with the flexibility of outdoor installation. When professionally installed and serviced, this boiler provides reliable heating year after year.

For detailed product specifications, please visit the official Grant UK page.

Enhance peace of mind with our HeatCover V4 plan
and our G1-accredited installation for dependable support and long-term performance.

What’s Included with Installation

• Standard external flue

• System flush

• Corrosion inhibitor

• Condensate pipework installation

• Room thermostat and programmer

• Registration with local authorities and manufacturer

• Grant Mag One Duo filter

Installation & Service Area

Please note: This boiler includes standard installation.
We only install boilers in the East Anglia region.

For full installation criteria, please see our Terms & Conditions.