Vortex Boiler House

Vortex Boiler House

a Heating

5 Year guarantee*

The Grant Vortex Boiler House range is ideal for locations that are difficult to access such as cellars or plant rooms, where a white cased utility boiler is not always the best solution.

All Boiler House models come in a distinctive powder coated casing in Grant’s iconic red. The Riello RDB burner is externally mounted and the boilers feature the same technologies associated with other Grant boilers. With high efficiencies and low running costs, the Vortex Boiler House range is eye-catching in both appearance and performance.


Features & benefits

  • *5 year guarantee when installed by a G1 Installer (Terms and Conditions apply)
  • Available in outputs between 15kW up to 70kW
  • Very efficient with space heating efficiencies of up to 91.7%
  • Encompass the same unique stainless steel heat exchangers as other Vortex boilers
  • Compact design making them ideal for garage, plant room and cellar installations
  • Feature latest Riello low NOx burner technology
  • Compatible with Grant EZ-Fit flue systems
  • This range is biofuel compatible (depending on the type of biofuel and % blend)
  • Heating engineers should visit the Professionals Vortex Boiler House range webpage to read more about these models

Awards & Accreditations


Case Studies

Effectively controlling your Grant boiler

Effectively controlling your Grant boiler

Modern day control systems can help homeowners to precisely manage their home heating, achieving maximum comfort with improved efficiencies. Room thermostats and controls deliver heat when and where it is most needed, reducing the demand when not required which consequently reduces the demand on the boiler. In addition, weather compensators such as the Grant GEO360 can adjust system water temperature to match a heat output closer to the needs of the home which can also help save fuel.

Learn more about weather compensation systems from Grant here.


Product code
Set Output
Max Output
NOx Emissions
Energy Rating
Load Profile
Energy Label
Product Fiche
VTXBH15/26 Grant Vortex Boiler House 15-26 21kW 26kW 125kg 891mm 431mm 594mm 91.70 Class 2 a Heating - View View
VTXBH26/46 Grant Vortex Boiler House 26-46 41kW 46kW 145kg 877mm 455mm 591mm 90.06 Class 2 a Heating - View View
VTXBH46/70 Grant Vortex Boiler House 46-70 64kW 70kW 301kg 1078mm 542mm 765mm 91.66 Class 3 a Heating - View View


Home Heating Blog

Discover more about home heating solutions, care and support with our informative blogs

Read more

Find an Installer

Search our network of heating engineers to find local installation and servicing companies in your area



There is a lot of terminology in the world of heating so this section is here to provide you with the definitions and clarity.

Learn more


Related products

Compare products
Return to top

Recently viewed products