10 Year guarantee^*

Vortex Blue: External Combi

Pairing together the successful combination of Grant’s patented technologies alongside Riello’s RDB BLU blue flame burner, the Grant VortexBlue External Combi is ideal for installations where an outdoor solution is required.

Similar to the Grant Vortex Pro Combis, the Grant VortexBlue External Combi boilers have large heat exchangers and accurate electronic temperature controls. These features allow the boilers to greatly increase their hot water performances as well as maintaining instant hot water production during condensing model in central heating.

a Heating b Water

Features & benefits

*10 year guarantee when installed by a G1 Installer (Terms and Conditions apply)
Three models available with 21kW, 26kW and 36kW outputs
Incredibly efficient with space heating efficiencies of 90.8 – 94.5%
Riello RDB BLU Blue Flame burner technology featured throughout the range
Features two accurate electronic temperature controls which allow the Grant VortexBlue External Combi boilers to operate in condensing mode on central heating whilst maintaining its instant hot water production
Every model achieves excellent hot water performances
24ltr expansion vessel supplied as standard
Factory fitted multi-directional flue saving time with installation
Neon diagnostic indicators to help with diagnostics
As with all of Grant’s Vortex oil boilers, this range is biofuel compatible (depending on the type of biofuel and % blend)

A Grant VortexBlue proves to be the ideal boiler replacement for a property in Berkshire

Case Study

Out with the old and in with the Blue!

Case Study

Blue flame hybrid technologies

With its cleaner combustion processes, a Grant VortexBlue oil boiler is a greener alternative to standard oil-fired boilers. When customers want to take one more step towards a more sustainable heating system, a hybrid can sometimes be the answer. The Grant VortexAir combines a VortexBlue oil boiler with an Aerona³ air source heat pump, giving installers and their customers a renewable alternative to boiler replacement installations.

Read more about the Grant VortexAir Hybrid heating range here.

Specification

Product code	Model	Set Output	Max Output	Weight	Height	Width	Depth	Efficiency	NOx Emissions	Tappings Flow/Return	Burner	Energy Rating	Load Profile	Energy Label	Product Fiche
VTXBFOMCOMB21	Grant VortexBlue External Combi 21	21kW	21kW	181kg	945mm	658mm	966mm	90.81	Class 3	22mm	Riello RDB Blu	a Heating b Water	XL	View	View
VTXBFOMCOM26	Grant VortexBlue External Combi 26	26kW	26kW	206kg	945mm	658mm	966mm	91.71	Class 3	22mm	Riello RDB Blu	a Heating b Water	XL	View	View
VTXBFOMCOM36	Grant VortexBlue External Combi 36	36kW	36kW	225kg	945mm	658mm	966mm	94.56	Class 3	28mm	Riello RDB Blu	a Heating b Water	XL	View	View