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Grant Vortex Eco Oil Boiler Review

Viessmann Vitodens 050-W Gas/LPG Boiler | Boilerhut
Witten by Bernard Morgan (Engineer) & Adam Apperley (Marketing). Published: June 17, 2021. Updated: February 15, 2024

Boiler only price: from £2,023

(Conventional 21kW boiler-only price: comparing up to five suppliers, including Screwfix and Plumbase, where possible. Correct January 2024).

The Grant Vortex Eco oil boiler range offers internal and external wall-hung options across two power outputs. The experts here at Boilerhut have outlined below the significant features of the Vortex Eco – and what you should know before purchase – so you can decide if it’s suitable for you and your household.

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About

The Grant Vortex Eco oil boiler features options that are designed to be installed in a kitchen, utility room or externally. This is a wall-hung boiler for when floor-standing isn’t an option.

This boiler can be fitted with a sealed system kit, making it into a system boiler. The unit is available in 16kW and 21kW power outputs.

The Vortex Eco oil boiler also has a stainless steel heat exchanger, meaning it will remain efficient for 10 to 15 years. This boiler comes with a 5-year guarantee when installed by Boilerhut (a G1 installer).

This boiler is Yellow Flame, not Blue Flame. This means there could be significant costs in the future if you want to convert to bio-oils.

Key Features

  • Holds an ‘A’ energy efficiency rating, with an operation rate of 90% efficiency.
  • Wall-mounted boiler to save floor space.
  • Comes in system and combi boiler types.
  • Options for internal and external installation.
  • Simplified control panel that is easy to use.
  • Utilises a stainless steel heat exchanger and premium high-quality components.
  • Provides a maximum heating output of 35kW.

Technical Specification

Manufacturer Grant
Model Vortex Eco
Condensing Yes
Efficiency Rating 90%
Energy Efficiency Class A-Rated
LPG Compatible No
Warranty 5-year guarantee
Central Heating Max. Output 35 kW
Mounting Wall-hung
Weight 85 to 98kg
Dimensions mm (HxWxD) Internal: 843 x 631 x 336
External: 832 x 684 x 351
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Our thoughts

The Grant Vortex Eco is a high-performance and quiet boiler. It is great if you don’t have access to the gas network.

Unfortunately, Grant are moving away from Blue Flame technology. We’re not sure why. Blue Flame technology will allow bio-oils to be burned, reducing the usage of fossil fuels. They haven’t been released yet, however.

We no longer recommend Grant boilers when a Navien boiler is an option for your home.

Excellent service and quality

Grant has won awards for its boilers. Designed and manufactured in the UK, they have a reputation for reliability and performance. They also have an excellent all-round reputation, including customer service. The Trustpilot page for Grant has a Great rating based on over 2.300 reviews (as of January 2024).

Choose the right model for your needs

The Grant Vortex Eco oil boiler is available as a regular/conventional boiler. You can purchase a kit to convert it to a sealed system boiler. The right Vortex Eco model for you will depend on the current heating setup in your property.

Built to last

The external models in this range feature high-quality powder-coated casing designed for all weather conditions. This makes them highly durable. They also include built-in frost protection, with a mains isolating switch and test switch.

Reduce gas and electricity consumption

The UK is now committed to achieving a net-zero emissions rating within the next decade. The energy market remains volatile, so seeking an economical boiler should be a priority for homeowners.

A Grant oil boiler can reduce your household’s carbon emissions and save money on your energy bills. The stainless steel heat exchanger provides optimal heat transfer and ensures retained efficiency for the boiler’s service life.

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Save up to £590 PER YEAR on your heating bills.
Quote in 30 seconds. No obligation. Next Day installation.
Save up to £590 PER YEAR!

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Save up to £590 PER YEAR on your heating bills.
Quote in 30 seconds. No obligation. Next Day installation.
Save up to £590 PER YEAR!

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