Grant CombiSol

Grant CombiSolWith solar thermal systems increasing in popularity in the UK and many new and existing heating installations involving mains pressure combination boilers, a simple, cost effective solution to integrate these two technologies is a must. The Grant CombiSol is designed to do just that, and is uniquely compatible with most combi boilers and fuel types. It works by accurately controling the outlet temperature of stored secondary hot water produced by a solar thermal system, directing the flow either straight to the hot water outlet, or via the combi boiler to the same outlet with a seamless changeover. There are additionally minimal temperature fluctuations at the taps.

The GrantCombiSol also accurately regulates the inlet water temperature to the combination boiler, therefore installing this unit with any combi boiler should not pose a problem, as the mixed water into the appliance is limited to a maximum of 24°C.

The unique thermostatic change-over valves provide a safe and simple solution for adding renewable energies to the home without having the added expense of changing your central heating appliance. It is important to ensure that the combination boiler can accept an incoming cold mains water temperature of up to 24°C. If in doubt, contact the boiler manufacturer. Grant’s extensive research and development programme has refined the use of each valve (marked clearly on the white cap) to give optimum control of hot water delivery to your taps.

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Case Studies

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

Green heating for 18th century estate

A historic Derbyshire country house, set in over 300 acres of trees and parkland is captivating visitors with its green approach to heating, by prominently displaying Grant Renewables in its gardens.  The magnificent family owned Locko Estate is the current ancestral home of the Drury-Lowe family.  It dates back 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

Property developer chooses Grant Biomass for new build

With any new build, how to heat it efficiently and effectively are a designer’s high priority and this was no more evident than on a fantastic new residence in Grimsby. A large PV array was installed in the garden to provide sufficient power to the property and also take advantageRead More