Grant Vortex Boiler House Condensing Oil Boiler 26–36kW
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Grant Vortex Boiler House Condensing Oil Boiler 26–36kW
(Approx. 3-5 working days)


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The Grant Vortex Boiler House 26–36kW is a floor standing oil fired condensing boiler designed for installation in boiler houses, garages, or plant rooms. It features the award winning Grant Vortex stainless steel heat exchanger and an externally mounted Riello RDB burner for efficient and quiet operation.
This oil boiler provides a heat output range of 26kW to 36kW, operating exclusively on Class C2 kerosene to BS 2869:1998. It is compatible with Grant EZ Fit flue systems for balanced or conventional flue applications. The boiler achieves seasonal efficiencies up to 97% and is biofuel compatible (up to B30K blend).
The unit includes a factory-fitted internal condensate trap and is fully approved to OFTEC standards and EC directives. Installation must comply with current Building Regulations. The casing is powder coated for durability and designed for easy servicing access.
- Heat output range: 26–36kW for larger heating systems
- Stainless steel condensing heat exchanger for high efficiency
- Riello RDB burner with low NOx emissions
- Compatible with Grant EZ Fit flue systems
- Factory fitted internal condensate trap for safe disposal
| Brand | Grant |
|---|---|
| Width | 460 mm |
| Connection Size | 28 mm |
| Depth | 600 mm |
| Flue Included | No |
| Fuel Type | Class C2 Kerosene (B30K compatible) |
| Heat Output Range | 26–36kW |
| Height | 705 mm |
| Heating Output | 36 kW |
| Min Heat Output | 26 |
| Model Name / No | VORTBH90120BSRED |
| Weight | 145 kg |
| Colour | Red |
| Mount Type | Free Standing |
| Residential Warranty | Up to 5 years when installed and registered by a G1 Installer |
| Sound Power Level (dB A): | 63 dB |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Grant Vortex Boiler House 26–36kW is a floor standing oil fired condensing boiler designed for installation in boiler houses, garages, or plant rooms. It features the award winning Grant Vortex stainless steel heat exchanger and an externally mounted Riello RDB burner for efficient and quiet operation.
This oil boiler provides a heat output range of 26kW to 36kW, operating exclusively on Class C2 kerosene to BS 2869:1998. It is compatible with Grant EZ Fit flue systems for balanced or conventional flue applications. The boiler achieves seasonal efficiencies up to 97% and is biofuel compatible (up to B30K blend).
The unit includes a factory-fitted internal condensate trap and is fully approved to OFTEC standards and EC directives. Installation must comply with current Building Regulations. The casing is powder coated for durability and designed for easy servicing access.
- Heat output range: 26–36kW for larger heating systems
- Stainless steel condensing heat exchanger for high efficiency
- Riello RDB burner with low NOx emissions
- Compatible with Grant EZ Fit flue systems
- Factory fitted internal condensate trap for safe disposal
| Brand | Grant |
|---|---|
| Width | 460 mm |
| Connection Size | 28 mm |
| Depth | 600 mm |
| Flue Included | No |
| Fuel Type | Class C2 Kerosene (B30K compatible) |
| Heat Output Range | 26–36kW |
| Height | 705 mm |
| Heating Output | 36 kW |
| Min Heat Output | 26 |
| Model Name / No | VORTBH90120BSRED |
| Weight | 145 kg |
| Colour | Red |
| Mount Type | Free Standing |
| Residential Warranty | Up to 5 years when installed and registered by a G1 Installer |
| Sound Power Level (dB A): | 63 dB |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.


