Call our friendly team today 01258 472132

Grant VortexBlue External

Award winning Grant VortexBlue blue flame boiler incorporates the latest low oil burner technology.

The Grant VortexBlue external modules have some of the highest oil-fired boiler efficiencies on the market.  These models are ideal for situations it is not suitable for boiler to be situated within your home or that you wish to free up additional space in your home.

All modules include a factory fitted multi-directional flue, high quality external powder coated casing, built in frost protection, mains isolating switch and a test switch. Just as other VortexBlue boilers, this range also incorporates Riello‘s RDB Blu burner technology teamed with our patented Vortex stainless steel heat exchanger.

Endorsed by the Energy Saving Trust as well as meeting the current NOx emissions targets they are also future proofed against future stringent low NOx emissions targets.

  • Compliant with September 2018 low NOx legislation
  • Outputs of 21, 26 and 36kW
  • 90.7- 93.3% Gross SAP2009 annual efficiency
  • 10 year guarantee when installed by a G1 accredited installer such as Total Energy Services (T&C’s apply)
  • Market-leading Riello Blue Flame burner
  • Factory-fitted multi-directional flue
  • High quality, external powder-coated casing
  • Built-in frost protection
  • Main isolating switch and a test switch

Technical Details

The Grant VortexBlue Internal Boilers come in many different models allowing you to benefit from a heating system perfectly matched to your home and usage.


GRANT VortexBlue External 15-21kW

GRANT VortexBlue External 21-26kW

Grant VortexBlue External 26-36kW

All models are ErP Efficiency Rating A, dimensions depend on model chosen

Grant VortexBlue External image

Contact us for a free Grant UK Oil Boiler Quote


Total Energy Services cover the following areas;

Total Energy Services offer heating and plumbing services in the areas of Dorset, Somerset, Wiltshire and Hampshire including;

Blandford, Sturminster Newton, Shaftesbury, Gillingham, Wimborne, Sherborne, Cerne Abbas, Six Penny Handley, Wincanton, Portland, Weymouth, Tisbury, Swanage, Wareham, Templecombe, Dorchester, Salisbury, Fordingbridge, Bruton, Castle Cary, Poole, Bournemouth, Christchurch.

If you live outside these areas please contact us and we will be happy to advise you.