Vortex Blue: External

10 Year guarantee*

Vortex Blue: External

The VortexBlue External range features oil boiler models which are the ideal solution when space within the home is limited.

Incorporating the latest ultra-low NOx Riello burner technology, the VortexBlue External oil boilers have a high quality, external powder-coated casing and built-in frost protection designed for all weather conditions.

a Heating

Features & benefits

  • *10 year guarantee when installed by a G1 Installer (Terms and Conditions apply)
  • Available in outputs of 21-26kW
  • High performing, efficient range achieving space heating efficiencies of between 90.8-94.5%
  • Durable coating designed for reliable operation outdoors
  • Features ultra-low NOx blue flame burner technology from Riello
  • Supplied with a factory fitted multi-directional flue, saving time and money
  • Sealed system kits available for all models
  • Heating engineers should visit the Professionals VortexBlue External range webpage to read more about these models
Simple modern home at dusk

Partnering technologies

VortexBlue oil-fired boilers cleverly combine the latest ultra-low NOx blue flame burner technology with the high efficiencies expected of a Grant boiler. Homeowners can therefore enjoy a highly efficient heating system with lower emissions compared to other boilers. To further reduce their carbon footprint, homeowners can add a solar thermal system to work alongside their VortexBlue boiler, harnessing the energy from the sun to provide hot water and reducing the demand on the boiler.

To see this concept in action, read one of our case studies which follows the installation of Grant Solar Thermal system with a VortexBlue oil-fired boiler.


Product code
Set Output
Max Output
NOx Emissions
Energy Rating
Load Profile
Energy Label
Product Fiche
VTXBFOM26 Grant VortexBlue External 26 (21-26kW) 26kW 26kW 143.0kg 908mm 505mm 1005mm 91.71 Class 3 a Heating - View View


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