Grant WinterSol

Grant WinterSOLThe Grant WinterSol has been designed to provide homeowners with a fully heated cylinder of hot water during times when there may not be sufficient solar (or heat pump) gain, therefore ensuring hot water demand is satisfied.

During the winter months, for example, 150 litres of hot water from a 300 litre cylinder may be insufficient. By fitting the GrantWinterSol, a simple summer/winter switch can be operated by the customer, allowing the central heating boiler to heat the full contents of the cylinder. When solar gain is restored, the switch is set back to summer mode for maximum efficiency. This unit does not directly prevent solar thermal or heat pump systems from operating as it only energised during the customers normal programmed hot water period.

It is important to note that like all components fitted to potable water, there is a risk of limescale contamination in hard water areas. Precautions should be taken to prevent limescale build up in this valve set. Failure as a result of limescale is not covered by the guarantee.

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Case Studies

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

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

Grant Solar tops prestigious Ochre Yards development

Thanks to Grant UK, residents of Block 7, Bellway Homes’ latest phase of the prestigious Ochre Yards development in Gateshead are enjoying ‘free’ hot water. Installed by John N Dunn Group Ltd to satisfy local Building Regulation requirements, the fifteen collector on-roof Aurora Solar Thermal System will generate a minimumRead More