Solar thermal systems capture the energy from the sun and use it to heat up your hot water.
It works by collecting the solar energy on the roof mounted solar collector. This energy is then transferred to your hot water cylinder via a heat transfer liquid that is pumped around the circuit.
The fluid contains an antifreeze for the colder months and during normal operation it experiences temperatures from freezing to well over 100 degrees C.
The heat transfer fluid pressurised and so the system has an expansion vessel and a pressure relief valve for safety and the system contains temperature sensors for control.
While in theory the system is a very simple heat transfer circuit, there is a lot going on and so it is advised to carry out regular maintenance.
We maintain all types of solar thermal systems and are approved by Viridian, whose systems are found throughout the Weavers Meadow estate.