Vortex Pro Range – Utility Models

Grant Vortex Pro boilers have been designed to enable unique programmer options to be used with the unit. A plug-in programmer (Part Code: EPKIT) can be fitted within the boiler control panel.

The range includes the unique award winning Vortex stainless steel condensing heat exchanger with turbulator baffles. The 15-21kW utility model has been cleverly designed to fit within a kitchen unit and, due to its smaller width, it can be a direct replacement for most older type oil fired condensing boilers.

Nine models are available in the range, which cover outputs from 15-70kW. These all feature Grant’s new internal condensate trap.

Sealed System Models

Sealed System variants of the Utility range are available in outputs of 15-26kW, 26-36kW and 36-46kW. Larger models can also be converted to sealed system operation, by adding a sealed system kit.


  • Award winning product range
  • Outputs ranging from 15–70kW
  • 5 year guarantee when installed by a G-One accredited installer*
  • Internal Condensate trap (with external option)
  • VTX1521 model only 348mm wide
  • System models feature a high efficiency circulating pump
  • Suitable for a plug-in programmer
  • Front Service access
  • Riello RDB Burner with plug and socket connection
  • Efficiency: 90.7 – 93.3% GROSS (SAP2009)

*terms and conditions apply




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Oil Fired Boiler Case Studies

New Vortex Boiler Houses welcome two homes to the red side

Two Grant Vortex Boiler House models, with their eye-catching red case, have recently been installed at properties in Dorset, delivering reliable home heating with their iconic new look. In September this year, Grant UK launched new models to join its Vortex oil fired condensing boiler range. Six new Vortex BoilerRead More

Martin Roberts warms up with a Grant VortexBlue

Earlier this year, television and radio property expert and author, Martin Roberts, turned to Grant UK for a replacement oil boiler to fulfil his property’s heating needs. Martin selected a Grant VortexBlue which, with its cleaner burning technology, is now keeping his home warm and toasty for many years toRead More

Out with the old and in with the Blue!

Since its launch last month, demand for the innovative new Grant VortexBlue oil-fired condensing boiler range has been high. Dempsey Heating Ltd, a Grant UK G-One accredited installer, was one of the first to fit the new blue flame boiler which is now keeping a home in Norfolk warm withRead More

19th century cottage now being heated by a Vortex Pro boiler

A cottage that was originally built in 1850 in a small Wiltshire village is now being kept warm by a Grant Vortex Pro 15-21kW kitchen/utility oil-fired boiler. Replacing an appliance that was over fifteen years old, the new Vortex now installed is providing reliable heating to the property, efficiently andRead More

Out with the old and in with a new Grant Vortex

A three storey property in Argyll has recently upgraded its heating system with a Grant Vortex oil-fired boiler which is working alongside a Grant energy management control system, providing warmth throughout the building. Vortex oil-fired boilers are renowned for their efficiency, but the effect of energy management controls can sometimesRead More

Grant Vortex Eco Utility boiler now warming up a Wiltshire farmhouse

Grant’s range of Vortex Eco Utility condensing oil boilers are known for being competitively priced, efficient and reliable. Consequently, receiving positive feedback about these boilers from both installers and householders is not uncommon. In early November, a Vortex Eco Utility 26/35kW boiler was installed into a large farmhouse in Devizes,Read More

Townsends take up renewables

Established in 1945, W.J Townsend & Son is a family run business providing domestic customers in Towcester and surrounding areas with a comprehensive range of plumbing and heating services. The business has been in the family for over 75 years with William John Townsend, founding the company. Andy his sonRead More

Dual fuel is twice as good

A large residence in Norfolk converts from a standard oil fired system to a renewable biomass boiler and condensing oil boiler combination, reaping the benefits of both high product efficiency and low running costs. This beautiful 19th century, six bedroomed residence on the Norfolk Broads has undergone a complete heatingRead More

Primary school cuts costs with Vortex boiler house

Crowenstown National School, one of the oldest primary schools in Ireland, founded in 1841, has installed the very latest Grant Vortex Pro Condensing boiler house boiler, to help cut energy costs. The original building was demolished in 1938, replaced with the current school which has three classrooms, a staff roomRead More