Heat To Heat HomeHeat To Heat 1 Heat for Charging Low value or waste heat is harnessed and passed to the TES modules. 2 Heat Tranfer Heat and circulated inside the TES pipes, heating the storage media. 3 Heat storage Heavily insulated TES modules filled with crushed rocks store the heat for hours or days with minimal heat loss of less than 0.1% per hour. 4 Heat delivery Whenever heat is required, whilst charging or idle, Steam or hot air is delivered in stable temperature and pressure.Fast ramp up and down could follow the process’ heat load to optimize efficiency and minimize heat loss.