10 Year guarantee^*

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.

a Heating b Water

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
As with all of Grant’s Vortex oil boilers, this range is biofuel compatible (depending on the type of biofuel and % blend)
Heating engineers should visit the Professionals VortexBlue External Combi range webpage to read more about these models

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

Going green with blue flame technology

Oil boilers today are significantly more efficient that older oil-fired appliances. This is why when a homeowner upgrades their old oil boiler for a new one, such as a Grant VortexBlue oil boiler, they will see their fuel usage drop as well as their fuel bills. Furthermore, a Grant VortexBlue boiler has ultra-low NOx emissions so choosing a Grant blue flame boiler can help homeowners make their heating greener and more sustainable.

Discover more about how the Grant VortexBlue oil boilers differ to other boilers with our YouTube video here.

Specification

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