Vortex Pro Range – Internal Combi Models

The latest Grant Vortex Combi models feature internal frost protection, 24ltr expansion vessel, neon diagnostic indicators and a factory fitted internal condensate trap (this can be sited externally if preferred), all designed to make installation and servicing easier. The Grant Vortex Electronic Condensing Combi boilers are available in three sizes – 21kW, 26kW* and 36kW.

Grant Vortex Combi’s have larger plate heat exchangers which, due to their low water content and great surface area, vastly increase hot water performance. Mixing valves on the unit are pre-set at 50°C, which accurately control the hot water draw off temperature from the boiler. They also include a low system pressure cut off switch, enabling the combi to protect itself in the event of system water loss. Additionally, there are two very accurate electronic temperature controls which allow the boiler to operate in condensing mode on central heating, whilst keeping the instant production of hot water.

Combi XS Model

As many oil boilers are sold as replacement products for older inefficient appliances, which tend to be smaller in physical dimension, the size of a new boiler plays an important part in the decision of what product to fit. The Vortex Pro Combi XS is a compact 26kW boiler, developed as an addition to the existing range which means it can replace an older oil-fired combi, as it is only 515mm wide. This new boiler has almost identical characteristics on both combustion efficiency and domestic hot water performance as its larger version and utilises all of the existing components. The only difference is that the 24 litre expansion vessel, normally located behind the front door of the boiler, is supplied as an externally fitted vessel kit.

Features

  • Grant Vortex Combi 26kW internal – Awarded ‘Which? Best Buy 2008’
  • Available in four models – 21kW, 26kW, 26kW XS and 36kW
  • 5 year guarantee when installed by a G-One accredited installer*
  • Suitable for kitchen installations
  • 26kW Combi XS model only 515mm wide
  • 24ltr expansion vessel on all models
  • Neon diagnostic indicators
  • High efficiency circulating pump
  • Simple and quick to install with no complicated wiring or plumbing
  • Unique Grant Vortex stainless steel heat exchanger
  • Extremely compact design
  • Riello RDB burner (with plug & socket connection)
  • Efficiency: 89.5 – 91.6% GROSS (SAP2009)

*terms and conditions apply

Typical Hot Water Performance

VTXCOMBI21*
15 litres per minute at an average temperature of 50°C
Recovery time 4 minutes approx. Based upon 100 litre draw off.

VTXCOMBI26 & VTXCOMBI26XS*
17 litres per minute at an average temperature of 50°C
Recovery time 4 minutes approx. Based upon 100 litre draw off.

VTXCOMBI36*
20 litres per minute at an average temperature of 50°C
Recovery time 3 minutes approx. Based upon 100 litre draw off.

MAINS WATER PRESSURE
Minimum 2.5 bar (36 psi)
Maximum 8 bar (115 psi).

*Hot water flow rate is dependant on mains pressure available. Figures based upon an incoming mains water temperature of 10°C.

 

 

Scroll across to view all table contents

Oil Fired Boiler Case Studies

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