Year guarantee*
Grant Vortex External
A high efficiency condensing range of free standing external oil-fired boilers designed for situations where internal space is at a premium. This range of outdoor condensing oil boilers features the award winning unique Grant Vortex heat exchanger and have some of the highest efficiencies available in the market today.
a HeatingFeatures & benefits
Installation & commissioning
Installation must comply with the current Building Regulations. As with all oil-fired appliances, Grant condensing boilers require commissioning at the time of installation. This simple process ensures that the boiler is working at peak efficiency which, in turn, will result in lower running costs and long term reliability. Annual maintenance is also made easy by Grant’s cleverly designed front service access to both burner and all the internal serviceable parts. This feature enables Grant Condensing Boilers to be fitted neatly and unobtrusively within either the kitchen, boiler house, or utility room environment. Comprehensive technical information can be found in the installation manual.
- High efficiency SEAI HARP ‘A’ Rating
- Features a Riello RDB Burner
- Optional pipe entry points
- Comes complete with a factory fitted multi-directional flue
- Optional side or rear flue exits
- Includes a factory fitted frost stat preset to 2°C
- Fully approved to OFTEC Standard and EC directives
- *One year manufacturer's warranty with five year guarantee on boiler heat exchanger (T&Cs Apply)
Specification
Product code |
Model |
Energy Label |
Product Fiche |
Set Output |
Max Output |
Weight |
Height |
Width |
Depth |
Efficiency |
NOx Emissions |
Energy Rating |
Load Profile |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VORTMOD1521 | Grant Vortex External 15-21 | View | - | 21kW | 21kW | 115kg | 879mm | 734mm | 385mm | 93 | Compliant | a Heating | - |
| VORTMOD1526 | Grant Vortex External 15-26 | View | - | 21kW | 26kW | 152kg | 908mm | 800mm | 505mm | 95 | Compliant | a Heating | - |
| VORTMOD2636 | Grant Vortex External 26-36 | View | - | 31kW | 36kW | 169kg | 908mm | 800mm | 505mm | 97 | Compliant | a Heating | - |
| VORTMOD3646 | Grant Vortex External 36-46 | View | - | 41kW | 46kW | 169kg | 908mm | 800mm | 505mm | 92.6 | Compliant | a Heating | - |
| VORTMOD4658 | Grant Vortex External 46-58 | View | - | 52kW | 58kW | 295kg | 1234mm | 945mm | 584mm | 94.1 | Compliant | a Heating | - |
| VORTMOD5870 | Grant Vortex External 58-70 | View | - | 64kW | 70kW | 309kg | 1234mm | 945mm | 584mm | 93.6 | Compliant | a Heating | - |
Downloads
Accessories
Grant Vortex Mag One Magnetic Filter
- 6 bar max working pressure
- Supplied with spare sealing washers & o-rings
- 360° installation & 1" G.B connections
Grant GES264 Sequence Controller
- Can control 2 - 4 heaters
- Accepts multiple heating appliances
- Reduces heating bills
Grant GEO360 Weather Compensator
- System reacts to internal and external temperature changes
- Monitors weather conditions throughout the year
- Maximises overall system efficiency
Fire Valve
- Essential fire protection for oil boilers
- Two alternative temperature settings
- Remote sensing up to 20 meters
Related products
EZ Fit Blue Single Wall Flue Kit
- Single wall stainless steel in 80mm & 100mm
- Plume diverter 1m kit or a 2m telescopic kits
- Extensions available
EZ Fit External Flue (green system) for outdoor boilers
- Suitable for Grant external boilers
- Starter connections available
- Possible to create offsets in straight flue runs by using our 45° bends and extensions.