Products
Oil Boilers
The award winning Vortex and VortexBlue oil-fired condensing boilers are available in internal, external, combination, boiler house and wall hung models.
Vortex Blue: Internal
- 15kW to 36kW outputs available
- Up to 94.5% space heating efficiency
- 10 year guarantee when installed by G1 Installer
Vortex Pro: Internal
- 15kW to 70kW outputs available
- Includes slimline Utility model only 348mm in width
- Quiet operation
Vortex Blue: External
- 15kW to 36kW outputs available
- Ideal solution when space within the home is limited
- 10 year guarantee when installed by G1 Installer
Vortex Pro: External
- 15kW to 70kW outputs available
- High quality external powder coated casing and durable design
- Space heating efficiencies of up to 94.5%
Vortex Blue: Internal Combi
- 21kW, 26kW & 36kW outputs available
- Excellent hot water performances across the range
- 10 year guarantee when installed by G1 Installer
Vortex Pro: Internal Combi
- 21kW, 26kW & 36kW outputs available
- Slimline Combi XS model available
- Space heating efficiencies of up to 94.5%
Vortex Blue: External Combi
- 21kW, 26kW & 36kW outputs available
- Durable, high quality powder coated casing
- 10 year guarantee when installed by G1 Installer
Vortex Pro: External Combi
- 21kW, 26kW & 36kW outputs available
- Feature Grant’s patented heat exchanger technology
- Ideally suited when space is at a premium inside the home
Vortex Boiler House
- 15kW up to 70kW outputs available
- Ideal for installing in garages, cellars and plant rooms
- Distinctive red, powder coated casing
Vortex Eco: Internal Wall Hung
- 12kW up to 21kW outputs available
- Wall mountable units providing space saving solutions
- Space heating efficiency of up to 90.5%
Vortex Eco: External Wall Hung
- 12kW up to 21kW outputs available
- External wall mountable boilers
- High quality, durable external casing
Vortex Eco: Internal
- 15kW to 35kW outputs available
- Competitively priced condensing boiler range
- Space heating efficiencies of up to 92.7%
Vortex Eco: External
- 15kW up to 35kW outputs available
- Competitively priced external oil boiler range
- Space heating efficiencies of up to 92.7%
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Why upgrade to a Grant oil-fired boiler?
For over forty years, Grant has developed some of the most efficient oil-fired boilers in the UK. A new condensing boiler from Grant has significantly improved efficiencies and performances compared to older oil-fired appliances which can operate with energy efficiency levels as low as 65%. By choosing a Grant boiler, which can achieve energy efficiencies of up to 94.5%, homeowners can lower their fuel usage, reduce their fuel bills and lessen their greenhouse gas emissions.
