Which? 2018 Energy Savings Trust
Vortex Pro: External Combi

5 Year guarantee*

Vortex Pro: External Combi

Providing both heating and hot water for the home without the need for an additional hot water cylinder, the Vortex Pro Combi incorporates the latest Riello Low NOx burner technology and combines it with Grant’s patented heat exchangers to give an award-winning range that meets the latest low NOx emission targets.

The external range features a high quality, external powder-coated casing and built-in frost protection making it the perfect option if space is at a premium inside the property.

a Heating b Water

Features & benefits

  • There are two very accurate electronic temperature controls which allow the boiler to operate in condensing mode on central heating whilst maintaining its instant hot water production.
  • Outputs of 21, 26 and 36kW to suit a range of properties
  • 89.5- 91.6% Gross SAP2009 annual efficiency
  • The Grant Vortex Pro Combi features large heat exchangers which, due to their low water content and larger surface area, vastly increased the hot water performance.
  • With a low system pressure cut off switch, the combi protects itself in the unlikely event of system water loss.
  • 24ltr expansion vessel
  • Neon diagnostic indicators making fault diagnostics easier
  • Factory-fitted multi-directional flue to save time at installation stage
  • High quality, external powder-coated casing and built-in frost protection designed for all weather conditions
Grant is the only oil boiler manufacturer to achieve Which? Best Buys for three years running

Grant is the only oil boiler manufacturer to achieve Which? Best Buys for three years running

Consumer group Which? have published the results of their 2019 oil boiler survey. Amongst the range of products to receive Which? Best Buys this year are all of Grant’s Vortex Pro Utility oil boilers. This is the third year running that Grant boilers have achieved this accolade making them the only oil boiler brand to be awarded Which? Best Buys in 2017, 2018 and 2019.

The Which? Best Buy logo is widely recognised as an endorsement that reflects confidence, trust and reliability in products. The Which? Best Buys and the supporting surveys play an important role in the decision-making process for householders researching new appliances for their home. Grant Engineering is therefore thrilled to have the high-quality build of their Vortex Pro Utility models, for example, acknowledged in the latest Which? survey with Best Buy status.

Read more on our news page.

Specification

Product code
Model
Set Output
Max Output
Weight
Height
Width
Depth
Efficiency
NOx Emissions
Tappings Flow/Return
Burner
Energy Rating
Load Profile
Energy Label
Product Fiche
VTXOMCOMBI21 Vortex Pro External Combi 21 21kW 21kW 181kg 945mm 658mm 754mm 90.81 Class 2 22mm Riello RDB a Heating b Water XL View View
VTXOMCOMBI26 VTXOMCOM26 26kW 26kW 206kg 945mm 658mm 754mm 91.71 Class 2 22mm Riello RDB a Heating b Water XL View View
VTXOMCOMBI36 Vortex Pro External Combi 36 36kW 36kW 225kg 945mm 658mm 754mm 94.56 Class 2 28mm Riello RDB a Heating b Water XL View View

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