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


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The Grant Vortex External 26-36kW is a free standing, oil fired condensing boiler designed for outdoor installation where internal space is limited. It features a goose grey powder coated galvanised steel casing for weather resistance and incorporates the Vortex stainless steel heat exchanger for high thermal efficiency.
This boiler provides central heating for medium to large properties and is compatible with indirect hot water cylinders. It operates on Class C2 kerosene and supports up to a 30% bio-kerosene blend (B30K), making it suitable for future low carbon fuel use. The unit includes a Riello RDB burner and a factory fitted frost protection thermostat preset to 2°C for reliable operation in cold conditions.
The Vortex External model is fully compliant with OFTEC standards and EC directives. It comes with multi-directional flue options and side or rear flue exits for flexible installation. Annual servicing is simplified by front access to all internal components.
- Central heating output range: 31kW to 36kW
- Powder coated galvanised steel casing for outdoor durability
- Riello RDB burner with plug and socket connection
- Factory fitted frost stat preset to 2°C
- Compatible with B30K bio-kerosene blend
| Brand | Grant |
|---|---|
| Width | 800 mm |
| Energy Rating | Not Selected |
| Connection Size | 28 mm |
| Depth | 505 mm |
| Flue Included | No |
| Fuel Type | Class C2 Kerosene (B30K compatible) |
| Heating Energy Rating | A |
| Heat Output Range | 26-36kW |
| Height | 908 mm |
| Heating Output | 36 kW |
| Model Name / No | VORTMOD2636P |
| Weight | 169 kg |
| Usage | External Use |
| Mount Type | Free Standing |
| Hydrogen Ready | No |
| NOx Class | Class 2 |
| Residential Warranty | 1 year manufacturer, 5 year heat exchanger (T&Cs apply) |
| Sound Power Level (dB A): | 54 dB |
| Burner Type | Riello RDB 2.2 |
| Casing Material | Powder Coated Steel |
| Frost Protection | Factory fitted frost stat |
| Seasonal Efficiency | 97% |
- 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 External 26-36kW is a free standing, oil fired condensing boiler designed for outdoor installation where internal space is limited. It features a goose grey powder coated galvanised steel casing for weather resistance and incorporates the Vortex stainless steel heat exchanger for high thermal efficiency.
This boiler provides central heating for medium to large properties and is compatible with indirect hot water cylinders. It operates on Class C2 kerosene and supports up to a 30% bio-kerosene blend (B30K), making it suitable for future low carbon fuel use. The unit includes a Riello RDB burner and a factory fitted frost protection thermostat preset to 2°C for reliable operation in cold conditions.
The Vortex External model is fully compliant with OFTEC standards and EC directives. It comes with multi-directional flue options and side or rear flue exits for flexible installation. Annual servicing is simplified by front access to all internal components.
- Central heating output range: 31kW to 36kW
- Powder coated galvanised steel casing for outdoor durability
- Riello RDB burner with plug and socket connection
- Factory fitted frost stat preset to 2°C
- Compatible with B30K bio-kerosene blend
| Brand | Grant |
|---|---|
| Width | 800 mm |
| Energy Rating | Not Selected |
| Connection Size | 28 mm |
| Depth | 505 mm |
| Flue Included | No |
| Fuel Type | Class C2 Kerosene (B30K compatible) |
| Heating Energy Rating | A |
| Heat Output Range | 26-36kW |
| Height | 908 mm |
| Heating Output | 36 kW |
| Model Name / No | VORTMOD2636P |
| Weight | 169 kg |
| Usage | External Use |
| Mount Type | Free Standing |
| Hydrogen Ready | No |
| NOx Class | Class 2 |
| Residential Warranty | 1 year manufacturer, 5 year heat exchanger (T&Cs apply) |
| Sound Power Level (dB A): | 54 dB |
| Burner Type | Riello RDB 2.2 |
| Casing Material | Powder Coated Steel |
| Frost Protection | Factory fitted frost stat |
| Seasonal Efficiency | 97% |
- 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.


