Description
Thermal batteries generally make use of a Phase Change Material (PCM) to store thermal energy. The PCM can store a large amount of energy at a set temperature in a small amount of material, which gives it the advantage of a small drop-off in temperature over a set flow. has an added advantage they work by heating the PCM to a set temperature and then passing mains water through the pipework that flows through the PCM, which gets heated in much the same way as a buffer store.