Technical Support for Solar Thermal Systems

No. Grant Solar Thermal systems require only basic maintenance in order to ensure that they continue to give trouble free operation.

Heating engineers wishing to install solar thermal systems do not require any specific qualifications however it is strongly recommended that they complete manufacturer training to learn more about the product specific features, relevant design and installation requirements and building regulations. Read more about the Grant Solar Thermal training course by selecting the 'Read More' link below.

In most instances, the installation of a solar thermal system does not require planning permission. 

No, soft soldered joints must not be used on the solar primary circuit.

Yes, all system pipe connections must use compression fittings with brass olives.

No, plastic pipe and fittings must not be used for any part of the solar primary circuit.

For installations in the UK, solar thermal collectors will perform best when facing due south at an angle of between 30 - 45°. However, collectors facing south west or south east will perform almost as well. Failing that a collectors facing due west will perform better than those facing due east. North facing solar thermal collectors are not usually used.

The solar fluid is a non-toxic 40/60 propylene glycol and water solution which has been specifically developed for solar thermal applications to protect the systems from freezing. The nitrate, phosphate and ammonia free fluid has been formulated to remain stable over long periods of time, will not freeze when temperatures drop below freezing, and it is also a good corrosion inhibitor.