Grant UK Boilers

We are an official and accredited installer of Grant uk oil boilers through the
g-one scheme. 

Following the successful fitting of a Grant UK boiler, you can expect to see efficiency, reliability and return on investment.

 
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Images and technical product information courtesy of: Grant Engineering (UK) Ltd.


Grant’s ultra high efficiency condensing oil boilers have been on the market for over 10 years and features 60 different model variations, with outputs ranging from 12-70kW.

Grant UK achieve efficiency levels far in excess of any UK or European Standards and have helped thousands of homes to reduce their annual fuel bills

What is a condensing oil boiler?

Condensing boilers differ from traditional boilers in that they are designed to capture heat normally lost through the flue system during the combustion process.

Unlike traditional oil-fired boilers, the Grant Vortex condensing boiler cools gases to a point where the latent heat, normally lost to the atmosphere through the flue, can be usefully extracted. This is achieved through a built-in stainless steel heat exchanger, incorporating Grant’s unique turbulator baffle system. 

The additional energy recovered enables the boiler to operate continuously at much higher efficiency levels, resulting in lower heating and hot water running costs.


Grant Vortex Eco Utility

Vortex Eco Utility models feature the latest version of the Grant Vortex stainless steel heat exchanger and baffle system and come in outputs ranging from 15–35kW.

  • Ideal choice for utility room installations. 
  • Condensate trap comes factory fitted within the case, but can also be positioned externally if preferred. 

Features:

  • Award winning condensing heat exchanger
  • Outputs ranging from 15–35kW
  • Riello RDB Burner (with plug & socket connection)
  • Internal Condensate trap (with external option)
  • Whisper quiet
  • Optional side or rear flue exits
  • Front Service access
  • Efficiency: 90.3 – 90.8% GROSS (SAP 2009)

Grant vortex Pro internal combi

The latest Grant Vortex Combi models feature internal frost protection, 24ltr expansion vessel, neon diagnostic indicators and a factory fitted internal condensate trap (this can be sited externally if preferred).

  • Designed to make installation and servicing easier
  • Available in three sizes – 21kW, 26kW* and 36kW.
  • Larger plate heat exchangers, which vastly increase hot water performance.
  • Mixing valves are pre-set at 50°C, which accurately control the hot water draw off temperature
  • A low system pressure cut off switch, enabling the combi to protect itself in the event of system water loss.
  • Two very intelligent electronic temperature controls, allowing the boiler to operate in condensing mode on central heating, whilst keeping the instant production of hot water.

Features:

  • Grant Vortex Pro Combi 26kW internal – Awarded ‘Which? Best Buy 2008’
  • Available in four models – 21kW, 26kW, 26kW XS and 36kW.
  • Suitable for kitchen installations
  • 26kW Combi XS model only 515mm wide
  • 24ltr expansion vessel on all models
  • Neon diagnostic indicators
  • High efficiency circulating pump
  • Simple and quick to install with no complicated wiring or plumbing
  • Unique Grant Vortex stainless steel heat exchanger
  • Extremely compact design
  • Riello RDB burner (with plug & socket connection)
  • Efficiency: 89.5 – 91.6% GROSS (SAP2009)

Grant Vortex Eco INTERNAL Wall Hung 

The Grant Eco wall hung oil-fired condensing boiler range includes four internal and four external high efficiency models.

  • Available in 12-16kW and 16-21kW outputs in both system and open vented versions.
  • Pre plumbed and encompass the patented Grant Vortex stainless steel heat exchanger.
  • A robust, powder coated paint finish
  • Available in sealed system versions, which including an expansion vessel, automatic air vent, pressure relief valve, circulating pump, filling loop and pressure gauge.

Features:

  • Award winning condensing heat exchanger
  • Outputs ranging from 12–21kW
  • Ecoflam MAX1 Burner
  • Whisper quiet in operation
  • Wall mountable
  • Multi-directional flue (factory fitted on external models)
  • Removable control box
  • Internal condensate trap (with external option)
  • Efficiency: 91.6 – 91.9% GROSS (SAP2009)

GRANT VORTEX ECO external WALL HUNG

The Grant Eco wall hung oil-fired condensing boiler range includes four internal and four external high efficiency models.

  • Available in 12-16kW and 16-21kW outputs in both system and open vented versions.
  • Pre plumbed and encompass the patented Grant Vortex stainless steel heat exchanger.
  • A robust, powder coated paint finish
  • Come with a factory fitted low level flue, robust external powder coated paint finish, built-in boiler frost protection, mains isolating switch and a test switch.
  • Available in sealed system versions, which including an expansion vessel, automatic air vent, pressure relief valve, circulating pump, filling loop and pressure gauge.

Features:

  • Award winning condensing heat exchanger
  • Outputs ranging from 12–21kW
  • Whisper quiet
  • High quality external powder coated case
  • Ecoflam MAX1 Burner
  • Wall mountable
  • Multi-directional flue (factory fitted on external models)
  • Removable control box
  • Internal condensate trap (with external option)
  • Efficiency: 91.6 – 91.9% GROSS (SAP2009)

Grant Vortex Pro External

Grant Vortex Pro outdoor modules encompass the original Vortex heat exchanger and have some of the highest efficiencies available in the market today.

  • Available in six outputs ranging between 15 and 70kW (50-240,000 Btu/h).
  • The same unique benefits as the Eco outdoor modules
  • Factory wired to receive an ‘optional’ RF (radio frequency) wireless programmer -enabling the appliance to be operated using a remote controller from any room inside the house without hard wiring.

Features:

  • Award winning product range
  • Outputs ranging from 15–70kW
  • Optional sealed system kits available
  • Simple and quick to install with no complicated wiring or plumbing
  • Unique Grant Vortex stainless steel heat exchanger
  • Extremely compact design
  • Fitted with low NOx Riello burner
  • Built-in test switch and frost stat
  • Efficiency: 90.7 – 93.3% GROSS (SAP2009)

Grant VortexBlue

The Grant VortexBlue combines existing proven condensing boiler technology with a revolutionary new blue flame. Using a new state-of-the-art Riello Blue Flame compact burner alongside the familiar Vortex oil-fired boiler, this market-leading combination gives you an easy to install, reliable product with those all-important low emissions.

  • Connsists of 15 models with heating outputs ranging up to 36kW.

Blue Flame Technology

As the name suggests, the flame produced is blue in colour, rather than the usual yellow colour of the standard burners.

Much cleaner combustion process.

Operate at the very high efficiency levels and produce extremely low NOx emissions.

Features:

  • Award winning Vortex condensing heat exchanger
  • 90.7- 93.3% Gross SAP2009 annual efficiency
  • Outputs ranging from 15-36kW
  • Market-leading Riello Blue Flame burner
  • Familiar burner technology
  • Exceptionally quiet when in operation
  • Sleek white casing
  • Neon diagnostic indicators