Year guarantee*
Vortex Pro: Internal Combi
The Grant Vortex Pro range has some of the highest energy efficiency ratings in the UK which not only significantly lowers fuel bills but also considerably reduces greenhouse gas emissions and lessens the environmental impact of domestic hot water and heating systems. They incorporate the latest Riello low NOx burner technology with Grant’s patented heat exchangers to give an award winning range that meets the 2018 low NOx emission targets.
a Heating b WaterFeatures & benefits
The intelligent Vortex Pro Combi incorporates the latest Riello RDB low NOx burner technology and combines it with our award winning Vortex stainless steel heat exchanger.
The Grant Vortex Pro Combi features large heat exchangers which, due to their low water content and larger surface area, vastly increased the hot water performance. With a low system pressure cut off switch, the combi protects itself in the unlikely event of system water loss. Additionally, there are two very accurate electronic temperature controls which allow the boiler to operate in condensing mode on central heating whilst maintaining its instant hot water production.
Combi XS Model
As many oil boilers are sold as replacement products for older inefficient appliances, which tend to be smaller in physical dimension, the size of a new boiler plays an important part in the decision of what product to fit. The Vortex Pro Combi XS is a compact 26kW boiler, developed as an addition to the existing range which means it can replace an older oil-fired combi, as it is only 515mm wide.
- Compliant with September 2018 low NOx legislation
- Outputs of 21, 26 and 36kW
- 89.5- 91.6% Gross SAP2009 annual efficiency
- Fitted with tried and trusted Riello RDB Lo-NOx burner
- 5 year guarantee when installed by a G1 accredited installer (T&C’s apply)
- 24ltr expansion vessel
- Unique Grant Vortex stainless steel heat exchanger
- Exceptionally quiet operation
- Neon diagnostic indicators
Low NOx Ready
On 26th September 2018, the next phase of the EU’s Energy-related Products Directive will come into effect. New legislation will set maximum nitrogen oxides (NOx) emission levels that space heaters will need to meet, reducing the overall NOx emissions produced from heating. For oil-fired boilers, the NOx emissions target will be a maximum of 120mg/kWh so all oil boilers placed on the market by the manufacturer on or after 26th September will need to be compliant.
One of the overarching objectives of the new legislation is to help improve the air quality by reducing pollution. In response to both Government regulations and a growing demand from homeowners, manufacturers have continuously explored ways to make their products more efficient and sustainable. The good news is that advances with burner technology coupled to Grant’s efficient boiler designs have enabled all of our Vortex Pro and Eco boiler ranges to achieve these new targets with virtually no visible change to the existing line up.
G-Cert Certification Scheme
Unlock all the benefits of a Grant renewable heating system with MCS certification.
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Find out moreSpecification
Product code |
Model |
Set Output |
Max Output |
Weight |
Height |
Width |
Depth |
Efficiency |
NOx Emissions |
Energy Rating |
Load Profile |
Energy Label |
Product Fiche |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VTXCOMBI21 | Grant Vortex Condensing Combi 21 | 21kW | 21kW | 160kg | 860mm | 614mm | 606mm | 90.81 | Class 2 | a Heating b Water | XL | View | View |
| VTXCOMBI26 | Grant Vortex Condensing Combi 26 | 26kW | 26kW | 177kg | 860mm | 614mm | 606mm | 91.71 | Class 2 | a Heating b Water | XL | View | View |
| VTXCOMBI36 | Grant Vortex Condensing Combi 36 | 36kW | 36kW | 200kg | 900mm | 614mm | 606mm | 94.56 | Class 2 | a Heating b Water | XL | View | View |
| VTXXSCOMBI26 | Grant Vortex Pro Combi XS 26 | 26kW | 26kW | 165kg | 857mm | 515mm | 606mm | 92.00 | Class 2 | a Heating b Water | XL | View | View |
Downloads
Accessories
Grant Vortex Mag One Magnetic Filter
- Filters magnetite and non-ferrous debris
- Simple to install, easy to clean, easy to drain design
- 12000 gauss neodymium magnet
EZ Flues: Internal low level balanced flues (yellow system)
- Suitable for Internal Grant Vortex boilers up to 70kW
- Self-sealing ducts requiring no silicone or tape
- Optional plume diverter (maximum height = 6 metres)
EZ-Fit Internal Vertical Balanced Flues (White System)
- Suitable for Internal Grant Vortex boilers up to 70kW
- Unique connection system ensures easy assembly
- Supplied as a complete kit
EZ-Fit Internal High Level Balanced Flues (White System)
- Suitable for Internal Grant Vortex boilers up to 70kW
- Maximum total flue length = 10 metres (deduct 1 metre for each additional 45° elbow used)
- Flue may be extended horizontally and vertically
EZ-Fit Flexible Vertical Balanced Flues (Red System)
- Suitable for Grant Vortex boilers up to 26kW
- Quick and simple to install
- Available in 6, 8, 10 and 12 metre packs
EZ-Fit Vertical conventional flues (Orange System)
- Suitable for Grant Vortex boilers up to 70kW
- Designed to enable an existing chimney to be utilised.
- Available in 6, 8, 10, 11, 12, 14 and 16 metre flexi packs
Related products
VortexBlue: Internal Combi
- Award winning range
- Outputs of 21, 26 and 36kW
- 89.5- 91.6% Gross SAP2009 annual efficiency
