Vortex Blue: External Combi

The Grant VortexBlue External Combi teams together Grant’s patented technologies with Riello’s ultra-low NOx burner to deliver heating and hot water efficiently and sustainably.

When an outdoor solution is needed for a new boiler, the Grant VortexBlue External Combi can be the answer with its high quality, external powder-coated casing and built-in frost protection. Designed for all weather conditions, these boilers achieve excellent efficiencies and hot water performance.

Features & Benefits

  • *10 year guarantee when installed by a G1 Installer (Terms and Conditions apply)
  • Available in outputs of 21kW, 26kW and 36kW
  • Achieves excellent space heating efficiencies between 90.8 – 94.5%
  • Uses cleaner burning technology with the Riello blue flame burner, producing very low NOx emissions
  • Durable design with high quality external casing
  • All Grant VortexBlue External Combi boilers have large heat exchangers which have low water content and a larger surface area, vastly increasing the hot water performance
  • 24ltr expansion vessel and factory-fitted multi-directional flue supplied as standard
  • User-friendly operation with neon diagnostic indicators
  • Heating engineers should visit the Professionals VortexBlue External Combi range webpage to read more about these models

Specifications

Product code
Model
Set Output
Max Output
Weight
Height
Width
Depth
Efficiency
NOx Emissions
Energy Rating
Load Profile
Energy Label
Product Fiche
VTXBF21 Grant VortexBlue Internal 21 (15-21kW) 21kW 21kW 130kg 860mm 470mm 603mm 90.81 Class 3 A View View
VTXBF26 Grant VortexBlue Internal 26 (21-26kW) 26kW 26kW 130kg 860mm 470mm 603mm 91.71 Class 3 A View View
VTXBF36 Grant VortexBlue Internal 36 (26-36kW) 36kW 36kW 144kg 900mm 470mm 603mm 94.56 Class 3 A View View
VTXSBF21 Grant VortexBlue Internal System 21 (15-21kW) 21kW 21kW 130kg 860mm 470mm 603mm 90.81 Class 3 A View View
VTXSBF26 Grant VortexBlue Internal System 26 (21-26kW) 26kW 26kW 130kg 860 mm 470 mm 603mm 91.71 Class 3 A View View
VTXSBF36 Grant VortexBlue Internal System 36 (26-36kW) 36kW 36kW 144kg 900mm 470mm 603mm 94.56 Class 3 A View View