Products
Oil Boilers
The award winning Vortex oil-fired condensing boilers are available in internal, external, combination, boiler house and wall hung models.
Behind every Grant Vortex oil boiler in today’s range is over 40 years of experience in designing and manufacturing reliable and efficient oil-fired boilers. With their incredible efficiencies and incorporating the latest burner technology, all Vortex oil boilers have been developed to provide householders with a warm, comfortable home efficiently and effectively.
The range delivers choice and flexibility when it comes to installation. From smaller boilers suitable for compact homes, external boilers for homes where internal space is at a premium through to larger boiler installations for bigger properties, the Vortex range comprises of oil boilers ranging in output from 15kW up to 70kW with heat only and combination boilers available.
As well as being energy efficient oil boilers, the Vortex floor standing boilers are also HVO compatible which means they can be converted to HVO operation with a few alterations. HVO biofuel is a low carbon liquid fuel which could play a significant role in helping off-gas, rural properties to transition to more sustainable home heating in the future so by choosing a Grant Vortex boiler, homeowners could make the switch from kerosene oil to biofuel with ease.
Vortex Pro: Internal
- 15kW to 70kW outputs available
- Incredibly efficient
- Quiet operation
Vortex Pro: External
- 15kW to 70kW outputs available
- High quality external powder coated casing and durable design
- Excellent space heating efficiencies
Vortex Pro: Internal Combi
- 21kW, 26kW & 36kW outputs available
- Slimline Combi XS model available
- Space heating efficiencies of up to 94.5%
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
- 16kW 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
- 16kW 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%
Are you looking for Flues?
View FluesWhy upgrade to a Grant oil-fired boiler?
Since 1978, 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.
All of our products are supplied through a network of merchants - please click here to read more about how to order Grant products.
A condensing boiler has second (condensing) heat exchanger where the flue gases are cooled to below their dew point by the water returning from the heating system. This has the effect of condensing the water vapour present in the flue gases, and liberating the heat energy that would otherwise be lost to outside through the flue system.
Read MoreA combi is a combination boiler that produces both heating and hot water from one compact appliance.
Read MoreThe size of oil boiler that you will need will be determined by the heat loss of your property, the size of your home and your requirements for heating and hot water demand.
Read MoreChoosing the best boiler for your home is important so that it meets all of your requirements. Whether you need an internal or external boiler, one for your utility room or garage, your installer will help you find the best boiler type for your property and with thirty-four models available, a Grant boiler should meet your requirements.
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